Space
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Investigating Mars: Arsia Mons
This THEMIS image shows part of the southern margin of the summit caldera. This image contains a variety of features representing the major events related to the formation of the volcano.
At the top of the image a small linear vent has produced lava flows increasing the elevation of the surface around it. The flat floor of the caldera surrounds the vent and the cliff faces at the center of the image were created during the collapse event that formed the caldera.
Depressions at the bottom illustrate collapse into empty voids like lava tubes. Arsia Mons is the southernmost of the Tharsis volcanoes. It is 270 miles (450 km) in diameter, almost 12 miles (20 km) high, and the summit caldera is 72 miles (120 km) wide. For comparison, the largest volcano on Earth is Mauna Loa. From its base on the sea floor, Mauna Loa measures only 6.3 miles high and 75 miles in diameter.
A large volcanic crater known as a caldera is located at the summit of all of the Tharsis volcanoes. These calderas are produced by massive volcanic explosions and collapse. The Arsia Mons summit caldera is larger than many volcanoes on Earth. The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars.
THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions. Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature.
From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.1 -
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NASA's Juno spacecraft was a little more than one Earth diameter from Jupiter when it captured this mind-bending, color-enhanced view of the planet's tumultuous atmosphere.
Jupiter completely fills the image, with only a hint of the terminator (where daylight fades to night) in the upper right corner, and no visible limb (the curved edge of the planet).
Juno took this image of colorful, turbulent clouds in Jupiter's northern hemisphere on Dec. 16, 2017 at 9:43 a.m. PST (12:43 p.m. EST) from 8,292 miles (13,345 kilometers) above the tops of Jupiter's clouds, at a latitude of 48.9 degrees.
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Image analysis shows that the galaxy weighs in at no more than 3 billion solar masses (roughly 1/100th the mass of our fully grown Milky Way galaxy). It is less than 2,500 light-years across, half the size of the Small Magellanic Cloud, a satellite galaxy of our Milky Way.
Hey that's almost as much as I weigh...0 -
My addition is an observation: Neil Degrasse Tyson makes space talk sexy.
He is a hot nerd
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Signs of Ships in the Clouds
Ships churning through the Atlantic Ocean produced this patchwork of bright, criss-crossing cloud trails off the coast of Portugal and Spain.0 -
(Jan. 7, 2017) --- The SpaceX Dragon resupply ship with its dual outstreched solar arrays is pictured attached to the Harmony module as the International Space Station orbited above Brazil.1 -
Jupiter's Stormy North
See Jupiter's northern polar belt region in this view taken by NASA's Juno spacecraft.
This color-enhanced image was taken on Dec. 16, 2017 at 9:47 a.m. PST (12:47 p.m. EST), as Juno performed its tenth close flyby of Jupiter. At the time the image was taken, the spacecraft was about 5,600 miles (8,787 kilometers) from the tops of the clouds of the planet at a latitude of 38.4 degrees north.
Citizen scientist Björn Jónsson processed this image using data from the JunoCam imager.
This image has been processed from the raw JunoCam framelets by removing the effects of global illumination. Jónsson then increased the contrast and color and sharpened smallscale features.
The image has also been cropped. While at first glance the view may appear to be in Jupiter's south, the raw source images were obtained when Juno was above the planet's northern hemisphere looking south, potentially causing a sense of disorientation to the viewer.
The geometry of the scene can be explored using the time of the image and the Juno mission module of NASA's Eyes on the Solar System.1 -
Investigating Mars: Kaiser Crater Dunes
This VIS image of Kaiser Crater shows individual dunes and where the dunes have coalesced into longer dune forms. The addition of sand makes the dunes larger and the intra-dune areas go from sand-free to complete coverage of the hard surface of the crater floor.
With a continued influx of sand the region will transition from individual dunes to a sand sheet with surface dune forms. Kaiser Crater is located in the southern hemisphere in the Noachis region west of Hellas Planitia. Kaiser Crater is just one of several large craters with extensive dune fields on the crater floor. Other nearby dune filled craters are Proctor, Russell, and Rabe.
Kaiser Crater is 207 km (129 miles) in diameter. The dunes are located in the southern part of the crater floor. The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.
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A colony of hot, young stars is stirring up the cosmic scene in this new picture from NASA Spitzer Space Telescope. The image shows the Orion nebula, a happening place where stars are born.1 -
This ultraviolet color image of the galaxy UGC10445 was taken by NASA Galaxy Evolution Explorer on June 7 and June 14, 2003. UGC10445 is a spiral galaxy located 40 million light-years from Earth.
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The Jan. 31 full moon is special for three reasons: it’s the third in a series of “supermoons,” when the Moon is closer to Earth in its orbit -- known as perigee -- and about 14 percent brighter than usual. It’s also the second full moon of the month, commonly known as a “blue moon.” The super blue moon will pass through Earth’s shadow to give viewers in the right location a total lunar eclipse. While the Moon is in the Earth’s shadow it will take on a reddish tint, known as a “blood moon.”
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The Jan. 31 full moon is special for three reasons: it’s the third in a series of “supermoons,” when the Moon is closer to Earth in its orbit -- known as perigee -- and about 14 percent brighter than usual. It’s also the second full moon of the month, commonly known as a “blue moon.” The super blue moon will pass through Earth’s shadow to give viewers in the right location a total lunar eclipse. While the Moon is in the Earth’s shadow it will take on a reddish tint, known as a “blood moon.”
I didn't get to see it: it was too cloudy here
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@cee134, pics of the actual eclipse, please & thank you
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empresssue wrote: »@cee134, pics of the actual eclipse, please & thank you
I only have 1 picture and it's not that great and looks like a street lamp. However, I'm sure that I can dig some stuff up from NASA now.0 -
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Arp 142: The Penguin and the Egg
This image of distant interacting galaxies, known collectively as Arp 142, bears an uncanny resemblance to a penguin guarding an egg.
Data from NASA's Spitzer and Hubble space telescopes have been combined to show these dramatic galaxies in light that spans the visible and infrared parts of the spectrum. This dramatic pairing shows two galaxies that couldn't look more different as their mutual gravitational attraction slowly drags them closer together. The "penguin" part of the pair, NGC 2336, was probably once a relatively normal-looking spiral galaxy, flattened like a pancake with smoothly symmetric spiral arms.
Rich with newly-formed hot stars, seen in visible light from Hubble as bluish filaments, its shape has now been twisted and distorted as it responds to the gravitational tugs of its neighbor. Strands of gas mixed with dust stand out as red filaments detected at longer wavelengths of infrared light seen by Spitzer. The "egg" of the pair, NGC 2937, by contrast, is nearly featureless. The distinctly different greenish glow of starlight tells the story of a population of much older stars.
The absence of glowing red dust features informs us that it has long since lost its reservoir of gas and dust from which new stars can form. While this galaxy is certainly reacting to the presence of its neighbor, its smooth distribution of stars obscures any obvious distortions of its shape. Eventually these two galaxies will merge to form a single object, with their two populations of stars, gas and dust intermingling. This kind of merger was likely a significant step in the history of most large galaxies we see around us in the nearby universe, including our own Milky Way.
At a distance of about 23 million light-years, these two galaxies are roughly 10 times farther away than our nearest major galactic neighbor, the Andromeda galaxy. The blue streak at the top of the image is an unrelated background galaxy that is farther away than Arp 142. Combining light from across the visible and infrared spectrums helps astronomers piece together the complex story of the life cycles of galaxies.
While this image required data from both the Spitzer and Hubble telescopes to cover this range of light, NASA's upcoming James Webb Space Telescope will be able to see all of these wavelengths of light, and with dramatically better clarity.1 -
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The lunar eclipse "Blood Moon" was photographed from the Johnson Space Center in Houston, Texas, during the early morning hours of Jan. 31, 2018.2 -
Investigating Mars: Kaiser Crater Dunes
This VIS image of the floor of Kaiser Crater contains several sand dune shapes and sizes. The "whiter" material is the hard crater floor surface.
Kaiser Crater is located in the southern hemisphere in the Noachis region west of Hellas Planitia. Kaiser Crater is just one of several large craters with extensive dune fields on the crater floor. Other nearby dune filled craters are Proctor, Russell, and Rabe.
Kaiser Crater is 207 km (129 miles) in diameter. The dunes are located in the southern part of the crater floor. The Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 71,000 times.
It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.1 -
Eroded Layers in Shalbatana Valles
Layers, probably sedimentary in origin, have undergone extensive erosion in this image from NASA's Mars Reconnaissance Orbiter (MRO) of Shalbatana Valles, a prominent channel that cuts through Xanthe Terra.1 -
Astronaut Mark Vande Hei took this image of the eastern U.S. and Canada at night, writing, "Good night from @Space_Station. DC, NY, Toronto, Cleveland, and surrounding areas!"2 -
SpaceX’s Falcon Heavy rocket took off from Cape Canaveral, Florida, yesterday afternoon and soared to space, carrying its payload — CEO Elon Musk’s red Tesla Roadster — into an orbit that stretches into the asteroid belt.
What we witnessed yesterday was the internet generation’s approximation of the moon landing, and that Roadster might well remain the totemic symbol of the achievement.2 -
Another SpaceX launch and tons of reports of mysterious lights in the sky for the southwest.
Unreal.1 -
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MeeseeksAndDestroy wrote: »
Yeah, same as last time. How can people NOT know about rocket launches, or at least have seen the reports over the years to make the correlation? I mean, I was lucky enough to see the other recent launch, but didn't know it was happening, but I did go out to watch the last night launch. What gets me is the newscaster are totally clueless, like it didn't just happen last month!
News Report Phoenix
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MeeseeksAndDestroy wrote: »MeeseeksAndDestroy wrote: »
Yeah, same as last time. How can people NOT know about rocket launches, or at least have seen the reports over the years to make the correlation? I mean, I was lucky enough to see the other recent launch, but didn't know it was happening, but I did go out to watch the last night launch. What gets me is the newscaster are totally clueless, like it didn't just happen last month!
News Report Phoenix
Haha that's so funny! Yeah you'd think even non space nerds would have Googled it at least once before
Exactly. I can see why ancient aliens came off as gods though. If current society couldn't understand technology and science, it must have been really scary back then.2 -
SpaceX Falcon Heavy Demo Flight - Landing
The SpaceX Falcon Heavy rocket’s two side cores descend toward landing at Cape Canaveral Air Force Station in Florida following a successful liftoff at 3:45 p.m. EST from Launch Complex 39A at NASA's Kennedy Space Center. This demonstration flight is a significant milestone for the world's premier multi-user spaceport.
In 2014, NASA signed a property agreement with SpaceX for the use and operation of the center's pad 39A, where the company has launched Falcon 9 rockets and prepared for the first Falcon Heavy. NASA also has Space Act Agreements in place with partners, such as SpaceX, to provide services needed to process and launch rockets and spacecraft.
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