Category: Astronomy

Earth’s Changing Ice via NASA https://ift.tt/35jfLJ3

Super Guppy Spends a Restful Night in the NASA Langley Hangar (desktop/laptop)

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Orion Launch Abort System Attitude Control Motor Hot-Fire Test : A static hot-fire test of the Orion spacecraft’s Launch Abort System Attitude Control Motor to help qualify the motor for human spaceflight, to help ensure Orion is ready from liftoff to splashdown for missions to the Moon. (via NASA)

Perihelion Approaches (desktop/laptop)

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Progress 73 Cargo Craft Departs the Station via NASA https://ift.tt/36cII9k

Sunset Over the Gulf of Mexico (desktop/laptop)

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AE Aurigae and the Flaming Star Nebula : Is star AE Aurigae on fire? No. Even though AE Aurigae is named the flaming star, the surrounding nebula IC 405 is named the Flaming Star Nebula, and the region shape gives the appearance of fire, there is no fire. Fire, typically defined as the rapid molecular acquisition of oxygen, happens only when sufficient oxygen is present and is not important in such high-energy, low-oxygen environments such as stars. The material that appears as smoke is mostly interstellar hydrogen, but does contain smoke-like dark filaments of carbon-rich dust grains. The bright star AE Aurigae, visible just to the lower right of the image center, is so hot it glows blue, emitting light so energetic it knocks electrons away from surrounding gas. When a proton recaptures an electron, light is emitted, as seen in the surrounding emission nebula. Featured here, the Flaming Star nebula lies about 1,500 light years distant, spans about 5 light years, and is visible with a small telescope toward the constellation of the Charioteer (Auriga). via NASA

Florida to Louisiana Viewed From the International Space Station (desktop/laptop)

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Shadows and Plumes Across Enceladus (desktop/laptop)

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Nick Hague Completes First Spacewalk : NASA astronaut Nick Hague completed the first spacewalk of his career on Friday, March 22, 2019. He and fellow astronaut Anne McClain worked on a set of battery upgrades for six hours and 39 minutes, on the International Space Station’s starboard truss. (via NASA)