Tag: nasa
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President Joe Biden unveiled this image of the galaxy cluster SMACS 0723 during a White House event on July 11, 2022. via NASA https://ift.tt/ck965xt
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Why do some spiral galaxies have a ring around the center? Spiral galaxy NGC 1398 not only has a ring of pearly stars, gas and dust around its center, but a bar of stars and gas across its center, and spiral arms that appear like ribbons farther out. The featured…
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A bobcat surveys the landscape at NASA’s Armstrong Flight Research Center in Edwards, California in this March 11, 2021, image. via NASA https://ift.tt/js3cEwU
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Why is our Sun so active now? No one is sure. An increase in surface activity was expected because our Sun is approaching solar maximum in 2025. However, last month our Sun sprouted more sunspots than in any month during the entire previous 11-year solar cycle — and even dating…
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NASA’s New Horizons spacecraft captured this high-resolution enhanced color view of Charon, Pluto’s largest moon, just before closest approach on July 14, 2015. via NASA https://ift.tt/WUAmRtQ
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When stars form, pandemonium reigns. A textbook case is the star forming region NGC 6559. Visible in the featured image are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. The first massive stars formed from…
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Eta Carinae may be about to explode. But no one knows when – it may be next year, it may be one million years from now. Eta Carinae’s mass – about 100 times greater than our Sun – makes it an excellent candidate for a full blown supernova. Historical records…
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Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall. Asaph Hall discovered both the Red Planet’s moons in 1877. Over 9 kilometers across, Stickney is nearly half the diameter of Phobos itself, so large that…
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NASA’s Psyche spacecraft is nearly complete as it rests in a clean room on June 26, 2023, at Astrotech Space Operations Facility near the agency’s Kennedy Space Center in Florida. via NASA https://ift.tt/zItEX7p
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This pretty starfield spans about three full moons (1.5 degrees) across the heroic northern constellation of Perseus. It holds the famous pair of open star clusters, h and Chi Persei. Also cataloged as NGC 869 (top) and NGC 884, both clusters are about 7,000 light-years away and contain stars much…
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The last rays of an orbital sunset begin fading in Earth’s atmosphere silhouetting the cloud tops. via NASA https://ift.tt/fvpO1FN
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On July 4, an almost Full Moon rose in planet Earth’s evening skies. Also known as a Buck Moon, the full lunar phase (full on July 3 at 11:39 UTC) was near perigee, the closest point in the Moon’s almost monthly orbit around planet Earth. That qualified this July’s Full…
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NASA’s X-59 research aircraft moves from its construction site to the flight line – or the space between the hangar and the runway – at Lockheed Martin Skunk Works in Palmdale, California, on June 16, 2023. via NASA https://ift.tt/Hb8S2nV
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What if you could see out to the edge of the observable universe? You would see galaxies, galaxies, galaxies, and then, well, quasars, which are the bright centers of distant galaxies. To expand understanding of the very largest scales that humanity can see, a map of the galaxies and quasars…
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