NASA posted this back in 2013 — but a lot of people missed it. It’s an animation of the Moon’s full rotation, showing all sides of the Moon lighted by the Sun. Film images come from the Lunar Reconnaissance Orbiter (LRO).
Watching this video we can think of all sorts of oddities about the Moon that maybe we didn’t get answers to in our high school astronomy class, or Astronomy 101 at State U: Why do we see only one side of the Moon from Earth? Doesn’t that mean the Moon doesn’t rotate? And shouldn’t Pink Floyd have called the album, “Far Side of the Moon?”
Explanation: No one, presently, sees the Moon rotate like this. That’s because the Earth’s moon is tidally locked to the Earth, showing us only one side. Given modern digital technology, however, combined with many detailed images returned by the Lunar Reconnaissance Orbiter (LRO), a high resolution virtual Moon rotation movie has now been composed. The above time-lapse video starts with the standard Earth view of the Moon. Quickly, though, Mare Orientale, a large crater with a dark center that is difficult to see from the Earth, rotates into view just below the equator. From an entire lunar month condensed into 24 seconds, the video clearly shows that the Earth side of the Moon contains an abundance of dark lunar maria, while the lunar far side is dominated by bright lunar highlands. Two new missions are scheduled to begin exploring the Moon within the year, the first of which is NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE). LADEE, which launched just over a week ago, is scheduled to begin orbiting the Moon in October and will explore the thin and unusual atmosphere of the Moon. In a few months, the ChineseChang’e 3 is scheduled to launch, a mission that includes a soft lander that will dispatch a robotic rover.
Tip of the old scrub brush to World and Science on Twitter (@WorldandScience).
[Today is actually the day! You may fly your flag if you choose. This is the traditional Millard Fillmore’s Bathtub Hubble Day post.]
Lift a glass of champagne today in tribute to Edwin Hubble and his great discovery. Not sure what to call it — Hubble Day, Looking Up Day, Endless Possibilities Day — whatever, this is the anniversary of Edwin Hubble’s announcement that he had discovered the universe is much, much larger than anyone had imagined, containing far more stars than anyone had dared guess.
It’s a big universe out there.
Ultraviolet image of the Andromeda Galaxy. Wired caption: “Photo: Edwin Hubble’s 1920s observations of Andromeda (whose ultraviolet spectrum is rendered here) expanded our notions of the size and nature of a universe that is itself expanding. Galaxy Evolution Explorer image courtesy NASA.”
So, today is a good day to celebrate the universe in all it’s glory – December 30. We haven’t done a good enough job of celebrating Hubble Day — we need to step up the festivities.
On December 30, 1924, Edwin Hubble announced he’d discovered other galaxies in distant space. Though it may not have been so clear at the time, it meant that, as a galaxy, we are not alone in the universe (whether we are alone as intelligent life is a separate question). It also meant that the universe is much, much bigger than most people had dared to imagine.
Hubble was the guy who showed us the universe is not only bigger than we imagined, it’s probably much bigger and much more fantastic than we can imagine. (See J. B. S. Haldane’s “queerer” quote.) Hubble is the guy who opened our imaginations to the vastness of all creation.
Hubble’s work would have been impossible without the earlier work of one of the great, unsung women of science, Henrietta Leavitt, as Wired explained:
He trained the powerful new 100-inch telescope at Mount Wilson in Southern California on spiral nebulae. These fuzzy patches of light in the sky were generally thought to be clouds of gas or dust within our galaxy, which was presumed to include everything in the universe except the Magellanic Clouds. Some nebulae seemed to contain a few stars, but nothing like the multitudes of the Milky Way.
Hubble not only found a number of stars in Andromeda, he found Cepheid variable stars. These stars vary from bright to dim, and a very smart Harvard computationist named Henrietta Leavitt had discovered in 1912 that you could measure distance with them. Given the brightness of the star and its period — the length of time it takes to go from bright to dim and back again — you could determine how far away it is.
Hubble used Leavitt’s formula to calculate that Andromeda was approximately 860,000 light years away. That’s more than eight times the distance to the farthest stars in the Milky Way. This conclusively proved that the nebulae are separate star systems and that our galaxy is not the universe.
How does one celebrate Hubble Day? Here are some suggestions:
Easier than Christmas cards: Send a thank-you note to your junior high school science teacher, or whoever it was who inspired your interest in science. Mrs. Hedburg, Mrs. Andrews, Elizabeth K. Driggs, Herbert Gilbert, Mr. Willis, and Stephen McNeal, thank you.
Rearrange your Christmas/Hanukkah/KWANZAA lights in the shape of the Andromeda Galaxy — or in the shape of any of the great photos from the Hubble Telescope (Andromeda Galaxy pictured above; Hubble images here)
Spend two hours in your local library, just looking through the books on astronomy and the universe
Write a letter to your senators and congressman; tell them space exploration takes a minuscule portion of our federal budget, but it makes us dream big; tell them we need to dream big, and so they’d better make sure NASA is funded well. While you’re at it, put in a plug for funding Big Bird and the rest of public broadcasting, too. Science education in this nation more and more becomes the science shows on NPR and PBS, watched by kids who learned to read and think by watching Big Bird.
Anybody got a good recipe for a cocktail called “The Hubble?” “The Andromeda?” Put it in the comments, please. “The Hubble” should have bubbles in it, don’t you think? What was it the good monk said? He was working to make great wine, but goofed somewhere, and charged the wine with another dose of yeast. When he uncorked the very first bottle of what would come to be called champagne, Benedictine Monk Dom Pierre Perignon said “I am drinking stars!” Except, he said it in French. In any case, a Hubble cocktail should have bubbles, some of Perignon’s stars.
Edwin Hubble, long before the Surgeon General’s 1964 report on smoking made taboo photos of people smoking pipes.
In 1924, he announced the discovery of a Cepheid, or variable star, in the Andromeda Nebulae. Since the work of Henrietta Leavitt had made it possible to calculate the distance to Cepheids, he calculated that this Cepheid was much further away than anyone had thought and that therefore the nebulae was not a gaseous cloud inside our galaxy, like so many nebulae, but in fact, a galaxy of stars just like the Milky Way. Only much further away. Until now, people believed that the only thing existing outside the Milky Way were the Magellanic Clouds. The Universe was much bigger than had been previously presumed.
Later Hubble noted that the universe demonstrates a “red-shift phenomenon.” The universe is expanding. This led to the idea of an initial expansion event, and the theory eventually known as Big Bang.
Hubble’s life offered several surprises, and firsts:
Hubble was a tall, elegant, athletic, man who at age 30 had an undergraduate degree in astronomy and mathematics, a legal degree as a Rhodes scholar, followed by a PhD in astronomy. He was an attorney in Kentucky (joined its bar in 1913), and had served in WWI, rising to the rank of major. He was bored with law and decided to go back to his studies in astronomy.
In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. . . .
Hubble wanted to classify the galaxies according to their content, distance, shape, and brightness patterns, and in his observations he made another momentous discovery: By observing redshifts in the light wavelengths emitted by the galaxies, he saw that galaxies were moving away from each other at a rate constant to the distance between them (Hubble’s Law). The further away they were, the faster they receded. This led to the calculation of the point where the expansion began, and confirmation of the big bang theory. Hubble calculated it to be about 2 billion years ago, but more recent estimates have revised that to 20 billion years ago.
An active anti-fascist, Hubble wanted to joined the armed forces again during World War II, but was convinced he could contribute more as a scientist on the homefront. When the 200-inch telescope was completed on Mt. Palomar, Hubble was given the honor of first use. He died in 1953.
“Equipped with his five senses, man explores the universe around him and calls the adventure Science.”
(Does anyone have a suitable citation for that video? Where did it come from? Who produced it? Is there more somewhere?)
Happy Hubble Day! Look up!
Resources:
Journey to Palomar site (production currently being broadcast on PBS affiliates – wonderful story of George Ellery Hale and the origins of modern astronomy at Palomar; that’s where Hubble worked)
Andromeda as we can see it today. Wikimedia image: The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. The image also shows Messier Objects 32 and 110, as well as NGC 206 (a bright star cloud in the Andromeda Galaxy) and the star Nu Andromedae. This image was taken using a hydrogen-alpha filter.
Many lessons of chasing the eclipse for us first-timers. Months ago we decided not to make major purchases to photograph the thing, to just enjoy the experience.
Still, we had inexpensive filters, and we photographed. Main tripod left in Dallas to avoid paying a lot extra to fly; a borrowed tripod held the GoPro (which was a poor choice; gotta work on that for time-lapse). So the best photos I got were hand-held.
And fuzzy as a result, I think.
Totality of the 2017 solar eclipse, near Casper, Wyoming, on the North Platte River.
The most interesting thing to me was the brilliant red beads during totality, where (if I recall correctly) the Sun peeks through the mountains of the Moon. I did get a couple shots to show that.
Totality and red beads of the 2017 solar eclipse.
Photographs to remind us of the great experience of joining millions of other people to watch a spectacular astronomical event, brought to us by science.
Did anyone at your house go blind? Ready for 2024?
Did you stay at home for the eclipse? Did you travel? What did you see and hear?
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It’s not just a beautiful photograph. It’s a rather rare phenomenon beautifully captured by Göran Strand, and wonderfully explained by Plait at his blog at Slate:
And here he is once again: That photo above shows that’s quite uncommon sigh: a fogbow! But this being Strand, even that’s not unusual enough. For him, it had to be even more difficult to track down. That’s not just a fogbow, it’s a lunar fogbow!
Fogbows are similar to rainbows, in that they’re caused by water droplets, but in detail they’re very different. In a rainbow, sunlight is bent and reflected inside a raindrop, and sent off at an angle. The drops are big compared to the wavelength of light, so they act a bit like mirrors. Each color of sunlight, though, bends at a slightly different angle, separating them, creating the multihued rainbow.
Strand has photos to sell in various formats. I see in a lot of offices, “inspirational” posters with good photos and occasionally-pithy-but-often-banal sayings and platitudes, hoped by bosses to spur productivity on the cheap. Order up a sizable print from Strand, get the full description of the photo, and mount it in your office instead. You’re likely to discover than genuine natural beauty from awe-inspiring photos spurs creativity and productivity more than the stock photos and stock sayings.
Those photos are starting points for learning, too, teachers. Real photos, worthy of any history, economics, geography, astronomy, chemistry, physics, geological science or environmental science class.
[Today is actually the day! You may fly your flag if you choose. This is the traditional Millard Fillmore’s Bathtub Hubble Day post.]
Lift a glass of champagne today in tribute to Edwin Hubble and his great discovery. Not sure what to call it — Hubble Day, Looking Up Day, Endless Possibilities Day — whatever, this is the anniversary of Edwin Hubble’s announcement that he had discovered the universe is much, much larger than anyone had imagined, containing far more stars than anyone had dared guess.
It’s a big universe out there.
Ultraviolet image of the Andromeda Galaxy. Wired caption: “Photo: Edwin Hubble’s 1920s observations of Andromeda (whose ultraviolet spectrum is rendered here) expanded our notions of the size and nature of a universe that is itself expanding. Galaxy Evolution Explorer image courtesy NASA.”
So, today is a good day to celebrate the universe in all it’s glory – December 30.
On December 30, 1924, Edwin Hubble announced he’d discovered other galaxies in distant space. Though it may not have been so clear at the time, it meant that, as a galaxy, we are not alone in the universe (whether we are alone as intelligent life is a separate question). It also meant that the universe is much, much bigger than most people had dared to imagine.
Hubble was the guy who showed us the universe is not only bigger than we imagined, it’s probably much bigger and much more fantastic than we can imagine. (See J. B. S. Haldane’s “queerer” quote.) Hubble is the guy who opened our imaginations to the vastness of all creation.
Hubble’s work would have been impossible without the earlier work of one of the great, unsung women of science, Henrietta Leavitt, as Wired explained:
He trained the powerful new 100-inch telescope at Mount Wilson in Southern California on spiral nebulae. These fuzzy patches of light in the sky were generally thought to be clouds of gas or dust within our galaxy, which was presumed to include everything in the universe except the Magellanic Clouds. Some nebulae seemed to contain a few stars, but nothing like the multitudes of the Milky Way.
Hubble not only found a number of stars in Andromeda, he found Cepheid variable stars. These stars vary from bright to dim, and a very smart Harvard computationist named Henrietta Leavitt had discovered in 1912 that you could measure distance with them. Given the brightness of the star and its period — the length of time it takes to go from bright to dim and back again — you could determine how far away it is.
Hubble used Leavitt’s formula to calculate that Andromeda was approximately 860,000 light years away. That’s more than eight times the distance to the farthest stars in the Milky Way. This conclusively proved that the nebulae are separate star systems and that our galaxy is not the universe.
How does one celebrate Hubble Day? Here are some suggestions:
Easier than Christmas cards: Send a thank-you note to your junior high school science teacher, or whoever it was who inspired your interest in science. Mrs. Hedburg, Mrs. Andrews, Elizabeth K. Driggs, Herbert Gilbert, Mr. Willis, and Stephen McNeal, thank you.
Rearrange your Christmas/Hanukkah/KWANZAA lights in the shape of the Andromeda Galaxy — or in the shape of any of the great photos from the Hubble Telescope (Andromeda Galaxy pictured above; Hubble images here)
Spend two hours in your local library, just looking through the books on astronomy and the universe
Write a letter to your senators and congressman; tell them space exploration takes a minuscule portion of our federal budget, but it makes us dream big; tell them we need to dream big, and so they’d better make sure NASA is funded well. While you’re at it, put in a plug for funding Big Bird and the rest of public broadcasting, too. Science education in this nation more and more becomes the science shows on NPR and PBS, watched by kids who learned to read and think by watching Big Bird.
Anybody got a good recipe for a cocktail called “The Hubble?” “The Andromeda?” Put it in the comments, please. “The Hubble” should have bubbles in it, don’t you think? What was it the good monk said? He was working to make great wine, but goofed somewhere, and charged the wine with another dose of yeast. When he uncorked the very first bottle of what would come to be called champagne, Benedictine Monk Dom Pierre Perignon said “I am drinking stars!” Except, he said it in French. In any case, a Hubble cocktail should have bubbles, some of Perignon’s stars.
Edwin Hubble, long before the Surgeon General’s 1964 report on smoking made taboo photos of people smoking pipes.
In 1924, he announced the discovery of a Cepheid, or variable star, in the Andromeda Nebulae. Since the work of Henrietta Leavitt had made it possible to calculate the distance to Cepheids, he calculated that this Cepheid was much further away than anyone had thought and that therefore the nebulae was not a gaseous cloud inside our galaxy, like so many nebulae, but in fact, a galaxy of stars just like the Milky Way. Only much further away. Until now, people believed that the only thing existing outside the Milky Way were the Magellanic Clouds. The Universe was much bigger than had been previously presumed.
Later Hubble noted that the universe demonstrates a “red-shift phenomenon.” The universe is expanding. This led to the idea of an initial expansion event, and the theory eventually known as Big Bang.
Hubble’s life offered several surprises, and firsts:
Hubble was a tall, elegant, athletic, man who at age 30 had an undergraduate degree in astronomy and mathematics, a legal degree as a Rhodes scholar, followed by a PhD in astronomy. He was an attorney in Kentucky (joined its bar in 1913), and had served in WWI, rising to the rank of major. He was bored with law and decided to go back to his studies in astronomy.
In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. . . .
Hubble wanted to classify the galaxies according to their content, distance, shape, and brightness patterns, and in his observations he made another momentous discovery: By observing redshifts in the light wavelengths emitted by the galaxies, he saw that galaxies were moving away from each other at a rate constant to the distance between them (Hubble’s Law). The further away they were, the faster they receded. This led to the calculation of the point where the expansion began, and confirmation of the big bang theory. Hubble calculated it to be about 2 billion years ago, but more recent estimates have revised that to 20 billion years ago.
An active anti-fascist, Hubble wanted to joined the armed forces again during World War II, but was convinced he could contribute more as a scientist on the homefront. When the 200-inch telescope was completed on Mt. Palomar, Hubble was given the honor of first use. He died in 1953.
“Equipped with his five senses, man explores the universe around him and calls the adventure Science.”
(Does anyone have a suitable citation for that video? Where did it come from? Who produced it? Is there more somewhere?)
Happy Hubble Day! Look up!
Resources:
Journey to Palomar site (production currently being broadcast on PBS affiliates – wonderful story of George Ellery Hale and the origins of modern astronomy at Palomar; that’s where Hubble worked)
Andromeda as we can see it today. Wikimedia image: The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. The image also shows Messier Objects 32 and 110, as well as NGC 206 (a bright star cloud in the Andromeda Galaxy) and the star Nu Andromedae. This image was taken using a hydrogen-alpha filter.
Near where I first saw the Milky Way, on my Snake River.
BLM Idaho on Twitter: #DYK 800 pairs of #hawks, #owls, #eagles & #falcons come each spring to mate & raise young in Snake River canyon. http://bit.ly/2d4Zz6O
The photo is by Bob Wick, the great public lands photographer whose work highlights BLM and other public lands sights.
mypubliclandsHappy Friday from BLM Idaho! On day five of our @mypubliclands Instagram takeover we are soaring over to Morley Nelson Snake River Birds of Prey National Conservation Area.
The deep canyon of the Snake River, with its crags and crevices and thermal updrafts, is home to the greatest concentration of nesting birds of prey in North America – and perhaps, the world. The BLM’s mission here is to preserve this remarkable wildlife habitat, while providing for other compatible uses of the land. Some 800 pairs of hawks, owls, eagles and falcons come each spring to mate and raise their young. The area truly exemplifies “nature in the rough,” with few public facilities. However, the birds and their unique environment offer rich rewards to those willing to experience this special place on its own terms and who have patience to fit into the natural rhythms of life here. Photo: Bob Wick
Get outside this year and visit BLM.gov to #GetAFreshLook of your public lands! Follow BLM Idaho on Facebook and Twitter @BLMIdaho.
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Oh, there’s a little technical wizardry involved in this one, stitching it together.
But, wow!
White Pocket in the Vermilion Cliffs National Monument, Arizona. Brilliant photography and stitching by Dave Lane Astrophotography, via the U.S. Department of Interior.
A more full description from Interior’s Facebook page:
Located in a remote and unspoiled part of northern Arizona, Vermilion Cliffs National Monument is a geologic treasure. For those who can’t get a permit to places like The Wave, White Pocket is an equally stunning place to explore — day or night. Pictured here, the area’s unusual rock formation is crowned by the Milky Way with Saturn, Mars and the Rho Ophiuchus region all visible. Multi-image photo (42 images stitched together in a 6 x 7 matrix) courtesy of David Lane (Dave Lane Astrophotography).
Dave Lane’s work amazes, doesn’t it?
Tip of the old scrub brush to Kathryn Knowles.
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National Science Foundation tweeted this out: “#photooftheday: Moai under the #MilkyWay. #space #galaxy #astronomy #science http://bit.ly/2ffTmVZ Image credit: Anne Dirkse”
[Today is actually the day! You may fly your flag if you choose. This is the traditional Millard Fillmore’s Bathtub Hubble Day post.]
Lift a glass of champagne today in tribute to Edwin Hubble and his great discovery. Not sure what to call it — Hubble Day, Looking Up Day, Endless Possibilities Day — whatever, this is the anniversary of Edwin Hubble’s announcement that he had discovered the universe is much, much larger than anyone had imagined, containing far more stars than anyone had dared guess.
It’s a big universe out there.
Ultraviolet image of the Andromeda Galaxy. Wired caption: “Photo: Edwin Hubble’s 1920s observations of Andromeda (whose ultraviolet spectrum is rendered here) expanded our notions of the size and nature of a universe that is itself expanding. Galaxy Evolution Explorer image courtesy NASA.”
So, today is a good day to celebrate the universe in all it’s glory – December 30.
On December 30, 1924, Edwin Hubble announced he’d discovered other galaxies in distant space. Though it may not have been so clear at the time, it meant that, as a galaxy, we are not alone in the universe (whether we are alone as intelligent life is a separate question). It also meant that the universe is much, much bigger than most people had dared to imagine.
Hubble was the guy who showed us the universe is not only bigger than we imagined, it’s probably much bigger and much more fantastic than we can imagine. (See J. B. S. Haldane’s “queerer” quote.) Hubble is the guy who opened our imaginations to the vastness of all creation.
Hubble’s work would have been impossible without the earlier work of one of the great, unsung women of science, Henrietta Leavitt, as Wired explained:
He trained the powerful new 100-inch telescope at Mount Wilson in Southern California on spiral nebulae. These fuzzy patches of light in the sky were generally thought to be clouds of gas or dust within our galaxy, which was presumed to include everything in the universe except the Magellanic Clouds. Some nebulae seemed to contain a few stars, but nothing like the multitudes of the Milky Way.
Hubble not only found a number of stars in Andromeda, he found Cepheid variable stars. These stars vary from bright to dim, and a very smart Harvard computationist named Henrietta Leavitt had discovered in 1912 that you could measure distance with them. Given the brightness of the star and its period — the length of time it takes to go from bright to dim and back again — you could determine how far away it is.
Hubble used Leavitt’s formula to calculate that Andromeda was approximately 860,000 light years away. That’s more than eight times the distance to the farthest stars in the Milky Way. This conclusively proved that the nebulae are separate star systems and that our galaxy is not the universe.
How does one celebrate Hubble Day? Here are some suggestions:
Easier than Christmas cards: Send a thank-you note to your junior high school science teacher, or whoever it was who inspired your interest in science. Mrs. Hedburg, Mrs. Andrews, Elizabeth K. Driggs, Herbert Gilbert, Mr. Willis, and Stephen McNeal, thank you.
Rearrange your Christmas/Hanukkah/Eid/KWANZAA lights in the shape of the Andromeda Galaxy — or in the shape of any of the great photos from the Hubble Telescope (Andromeda Galaxy pictured above; Hubble images here)
Spend two hours in your local library, just looking through the books on astronomy and the universe
Write a letter to your senators and congressman; tell them space exploration takes a minuscule portion of our federal budget, but it makes us dream big; tell them we need to dream big, and so they’d better make sure NASA is funded well. While you’re at it, put in a plug for funding Big Bird and the rest of public broadcasting, too. Science education in this nation more and more becomes the science shows on NPR and PBS, watched by kids who learned to read and think by watching Big Bird.
Anybody got a good recipe for a cocktail called “The Hubble?” “The Andromeda?” Put it in the comments, please. “The Hubble” should have bubbles in it, don’t you think? What was it the good monk said? He was working to make great wine, but goofed somewhere, and charged the wine with another dose of yeast. When he uncorked the very first bottle of what would come to be called champagne, Benedictine Monk Dom Pierre Perignon said “I am drinking stars!” Except, he said it in French. In any case, a Hubble cocktail should have bubbles, some of Perignon’s stars.
In 1924, he announced the discovery of a Cepheid, or variable star, in the Andromeda Nebulae. Since the work of Henrietta Leavitt had made it possible to calculate the distance to Cepheids, he calculated that this Cepheid was much further away than anyone had thought and that therefore the nebulae was not a gaseous cloud inside our galaxy, like so many nebulae, but in fact, a galaxy of stars just like the Milky Way. Only much further away. Until now, people believed that the only thing existing outside the Milky Way were the Magellanic Clouds. The Universe was much bigger than had been previously presumed.
Later Hubble noted that the universe demonstrates a “red-shift phenomenon.” The universe is expanding. This led to the idea of an initial expansion event, and the theory eventually known as Big Bang.
Hubble’s life offered several surprises, and firsts:
Hubble was a tall, elegant, athletic, man who at age 30 had an undergraduate degree in astronomy and mathematics, a legal degree as a Rhodes scholar, followed by a PhD in astronomy. He was an attorney in Kentucky (joined its bar in 1913), and had served in WWI, rising to the rank of major. He was bored with law and decided to go back to his studies in astronomy.
In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. . . .
Hubble wanted to classify the galaxies according to their content, distance, shape, and brightness patterns, and in his observations he made another momentous discovery: By observing redshifts in the light wavelengths emitted by the galaxies, he saw that galaxies were moving away from each other at a rate constant to the distance between them (Hubble’s Law). The further away they were, the faster they receded. This led to the calculation of the point where the expansion began, and confirmation of the big bang theory. Hubble calculated it to be about 2 billion years ago, but more recent estimates have revised that to 20 billion years ago.
An active anti-fascist, Hubble wanted to joined the armed forces again during World War II, but was convinced he could contribute more as a scientist on the homefront. When the 200-inch telescope was completed on Mt. Palomar, Hubble was given the honor of first use. He died in 1953.
“Equipped with his five senses, man explores the universe around him and calls the adventure Science.”
(Does anyone have a suitable citation for that video? Where did it come from? Who produced it? Is there more somewhere?)
Happy Hubble Day! Look up!
Resources:
Journey to Palomar site (production currently being broadcast on PBS affiliates – wonderful story of George Ellery Hale and the origins of modern astronomy at Palomar; that’s where Hubble worked)
Andromeda as we can see it today. Wikimedia image: The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. The image also shows Messier Objects 32 and 110, as well as NGC 206 (a bright star cloud in the Andromeda Galaxy) and the star Nu Andromedae. This image was taken using a hydrogen-alpha filter.
Yes, this is mostly an encore post. Fighting ignorance requires patience.
Spread the word; friends don't allow friends to repeat history.
On December 30, 1924, Edwin Hubble announced he’d discovered other galaxies in distant space. Though it may not have been so clear at the time, it meant that, as a galaxy, we are not alone in the universe (whether we are alone as intelligent life is a separate question). It also meant that the universe is much, much bigger than most people had dared to imagine.
December 30, 2015 is the 91st anniversary of the announcement. When dealing with general science illiteracy, it’s difficult to believe we’ve been so well informed for more than nine decades. In some quarters, news travels more slowly than sound in the vacuum of space.
I find hope in many places. Just three years ago the Perot Museum of Nature and Science opened in downtown Dallas. It’s the old Dallas Museum of Science and Natural History, once cramped into a bursting building in historic Fair Park, now expanded into a beautiful new building downtown, and keeping the Fair Park building, too. Considering the strength of creationism in Texas, it’s great news that private parties would put up $185 million for a museum dedicated to hard science.
Displays in the Perot border on brilliance at almost every stop. Stuffy museum this is not — it’s designed to spark interest in science and engineering in kids, and I judge that it succeeds, though we need to wait 20 years or so to see just exactly what and who it inspires.
We visited the Perot regularly through 2014. On one visit in 2012, as I was admiring a large map of the Moon, a family strolled by, and a little girl I estimated to be 8 or 9 pointed to the Moon and asked her maybe-30-something father where humans landed. I had been working to see whether the very large photo showed any signs of activity — but the father didn’t hesitate, and pointed to the Sea of Tranquility. “There,” he said. The man was not old enough to have been alive at the time; I’d wager most of my contemporaries would hesitate, and maybe have to look it up. Not that guy.
On 32 flat-panel video displays hooked together to make one massive display, visitors to the Perot Museum of Nature and Science view Mars as our new Mars Rover’s friend might see it, in a section of the museum devoted to astronomy, physics, astronomy and planetary exploration. Photo by Ed Darrell; use encouraged with attribution.
Still, kids today need this museum and the knowledge and excitement it imparts. One recent July I accompanied a group of Scouts from Troop 355 to summer camp in Colorado, to Camp Chris Dobbins in the foothills just east of Colorado Springs. Near lights out one night I hiked the half-mile to our campsite admiring the Milky Way and other bright displays of stars that we simply do not get in light-polluted Dallas County. I expected that our older Scouts would have already started on the Astronomy merit badge, but the younger ones may not have been introduced. So I asked how many of them could find the Milky Way. Not a hand went up.
“Dowse the lights, let’s have a five minute star lesson,” I said. we trekked out to a slight opening in the trees, and started looking up. I had just enough time to point out the milky fog of stars we see of our own galaxy, when one of the Scouts asked how to tell the difference between an airplane and a satellite. Sure enough, he’d spotted a satellite quietly passing overhead — and just to put emphasis on the difference, a transcontinental jet passed over flying west towards Los Angeles or San Francisco.
Then, when we were all looking up, a meteoroid streaked from the south across almost the whole length of the visible Milky Way. Teenage kids don’t often go quiet all at once, but after the oohs and aahs we had a few moments of silence. They were hooked already. Less than five minutes in, they’d seen the Milky Way, found the Big Dipper, seen a satellite, a jet, and a shooting star.
Perfection!
Edwin Hubble’s discovery can now be the stuff of elementary school science, that the blobs in the sky astronomers had pondered for a century were really galaxies like our own, which we see only through a faint fuzz we call the Milky Way.
Do kids get that kind of stuff in elementary school? Not enough, I fear.
We named a great telescope after the guy; shouldn’t we do a bit more to celebrate his discovery?
Milky Way over Bosque Alegre Station in Argentina Image Credit & Copyright: Sebastián D’ Alessandro. To see the picture in its unadorned glory without the explanatory overlay, click on the image to get to NASA’s APOD site.
Stars in the Southern Hemisphere differ a lot from what we see in the North, most famously with the Southern Cross (Crux, in the image above).
Glorious anyway; more glory to go around.
If you click over to the APOD site, you can also see this photo without the overlay, which is another whole world of wonderfulness.
Explanation: What are those streaks of light in the sky? First and foremost, the arching structure is the central band of our Milky Way galaxy. Visible in this galactic band are millions of distant stars mixed with numerous lanes of dark dust. Harder to discern is a nearly vertical beam of light rising from the horizon, just to the right of the image center. This beam is zodiacal light, sunlight scattered by dust in our Solar System that may be surprisingly prominent just after sunset or just before sunrise. In the foreground are several telescopes of the Bosque Alegre Astrophysical Station of the National University of Cordoba in Argentina. The station schedules weekend tours and conducts research into the nature of many astronomical objects including comets, active galaxies, and clusters of galaxies. The featured image was taken early this month.
Spread the word; friends don't allow friends to repeat history.
1440 individual photographs captured over 13 hours cut together into one incredible time-lapse video.
Photographer and videographer Mark Gee shot this breath-taking footage of the southern skies around his hometown of Wellington, New Zealand. The stunning one-minute clip is a collection of Mark’s most memorable night sky moments over the past year.
The majority of the video was shot on Wellington’s South Coast (watch out for air traffic) while the campfire and the camping scenes were filmed in Cape Palliser and the Tararua Ranges.
From Gee’s Youtube site, the longer film (1 minute!):
Spread the word; friends don't allow friends to repeat history.
This filmmaker traveled to 30 states and national parks to capture this gorgeous time-lapse video showcasing the beauty of untouched nature and our dark skies
Watch the video and read the account of all that goes into making a film like this. Amazing work!
From Shreenivasan Manievannan. Details at Vimeo, where Manievannan discusses what the Parks showed of destructive climate change during the filming.
How many places can you identify? How many of them have you visited?
Or, until that account is unsuspended by the forces supporting Donald Trump: Follow @FillmoreWhite, the account of the Millard Fillmore White House Library
We've been soaking in the Bathtub for several months, long enough that some of the links we've used have gone to the Great Internet in the Sky.
If you find a dead link, please leave a comment to that post, and tell us what link has expired.
Thanks!
Retired teacher of law, economics, history, AP government, psychology and science. Former speechwriter, press guy and legislative aide in U.S. Senate. Former Department of Education. Former airline real estate, telecom towers, Big 6 (that old!) consultant. Lab and field research in air pollution control.
My blog, Millard Fillmore's Bathtub, is a continuing experiment to test how to use blogs to improve and speed up learning processes for students, perhaps by making some of the courses actually interesting. It is a blog for teachers, to see if we can use blogs. It is for people interested in social studies and social studies education, to see if we can learn to get it right. It's a blog for science fans, to promote good science and good science policy. It's a blog for people interested in good government and how to achieve it.
BS in Mass Communication, University of Utah
Graduate study in Rhetoric and Speech Communication, University of Arizona
JD from the National Law Center, George Washington University
Posted by Ed Darrell 
Millard Fillmore's Bathtub 
