Tag: nasa
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Near perigee, the closest point in its almost moonthly orbit, a Full Moon rose as the Sun set on August 1. Its brighter than average lunar disk was captured in this dramatic moonrise sequence over dense cloud banks along the eastern horizon from Ragusa, Sicily. Illuminating night skies around planet…
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Rocky Garcia and Wesley James prepare a weather balloon to collect wind data at NASA’s Armstrong Flight Research Center in Edwards, California, on July 20, 2023. via NASA https://ift.tt/ZNaHL45
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Why isn’t spiral galaxy M66 symmetric? Usually, density waves of gas, dust, and newly formed stars circle a spiral galaxy’s center and create a nearly symmetric galaxy. The differences between M66’s spiral arms and the apparent displacement of its nucleus are all likely caused by previous close interactions and the…
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Ringed planet Saturn will be at its 2023 opposition, opposite the Sun in Earth’s skies, on August 27. While that puts the sixth planet from the Sun at its brightest and well-placed for viewing, its beautiful ring system isn’t visible to the unaided eye. Still, this sequence of telescopic images…
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A Mercury-Redstone launch vehicle awaits test-firing in the Redstone Test Stand at NASA’s Marshall Space Flight Center in Huntsville, Alabama in this photo from the late 1950s. via NASA https://ift.tt/fIh7YTm
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Under dark and mostly moonless night skies, many denizens of planet Earth were able to watch this year’s Perseid meteor shower. Seen from a grassy hillside from Shiraz, Iran these Perseid meteors streak along the northern summer Milky Way before dawn on Sunday, August 13. Frames used to construct the…
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In this image from July 18, 2023, a NASA team helps attach solar arrays for the agency’s Psyche spacecraft onto a stand inside the Astrotech Space Operations Facility near Kennedy Space Center in Florida. via NASA https://ift.tt/l1MnYjd
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It came from outer space. It — in this case a sand-sized bit of a comet nucleus — was likely ejected many years ago from Sun-orbiting Comet Swift-Tuttle, but then continued to orbit the Sun alone. When the Earth crossed through this orbit, the piece of comet debris impacted the…
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Gateway’s International Habitat module, provided by ESA, is the focus of this rendered image from Aug. 18, 2023. via NASA https://ift.tt/LfOC7cu
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This nebula had never been noted before. Newly discovered nebulas are usually angularly small and found by professionals using large telescopes. In contrast, the Pistachio Nebula was discovered by dedicated amateurs and, although faint, is nearly the size of the full Moon. In modern times, amateurs with even small telescopes…
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The crew members of NASA’s SpaceX Crew-7 mission spoke at NASA’s Kennedy Space Center in Florida on Aug. 20, 2023. via NASA https://ift.tt/kVpTeFO
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Will Comet Nishimura become visible to the unaided eye? Given the unpredictability of comets, no one can say for sure, but it currently seems like a good bet. The comet was discovered only ten days ago by Hideo Nishimura during 30-second exposures with a standard digital camera. Since then, C/2023…
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What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a…
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Ringed ice giant Neptune lies near the center of this sharp near-infrared image from the James Webb Space Telescope. The dim and distant world is the farthest planet from the Sun, about 30 times farther away than planet Earth. But in the stunning Webb view, the planet’s dark and ghostly…
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