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Are we alone? The search for alien technosignatures Our public education specialist Kate Howells reflects on the tenth anniversary of the Chelyabinsk Meteor Event, and don't miss your chance to win a comfy Planetary Society beanie in this week's Space Trivia Contest.
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Chelyabinsk meteor explosion was a planetary defense wakeup call As it turned out, the videos Chodas was sent showed a 59-foot (18 meters) near-Earth asteroid exploding in the atmosphere after surprising scientists by coming from the direction of the sun, a blind spot for telescopes and other sensors on the ground.
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Russia delays launch of replacement Soyuz to March Russia has pushed the launch of its next Soyuz spacecraft to the International Space Station (ISS) into March, a delay of a few weeks. Soyuz vehicles are designed to carry astronauts, but this one, known as MS-23, will launch in an uncrewed state.
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Mars rover completes first sample storage depot NASA's Perseverance rover on Mars has cooly notched up another significant first by creating the first ever storage depot on another world for Martian soil samples. But if the rover's mission goes to plan and it continues to operate as scheduled, ...
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James Webb Space Telescope opens Pandora's Cluster in stunning image with help from Einstein (video) The new JWST image reveals previously hidden details from the region and the merger of three already massive clusters to create an even larger "mega cluster" of galaxies. The nickname for this region ...
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Task complete! Perseverance Mars rover snaps photo of filled sample depot NASA's Perseverance Mars rover has recorded the first-ever off-Earth sample depot for posterity. Perseverance built that depot on a patch of Martian ground called Three Forks over the course of five weeks beginning on Dec. 21, 2022.
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'Staircase' ice and deep cracks under so-called Doomsday Glacier could set the stage for collapse, scientists say The Thwaites Glacier in Antarctica, also known as the "Doomsday glacier" due to the huge risk its melting poses to global sea levels. NASA/OIB/Jeremy Harbeck.
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Comet C/2022 A2 (Pan-STARRS) passes close by the sun this weekend This relatively recently discovered comet will make its closest approach to the sun on Sunday, Feb. 18. ... A greenish comet streaks through the night sky. Comet ISON moves across the ...
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The Asteroid Blast That Shook the World Is Still Making an Impact Ramming through the air at hypersonic velocities blowtorched the asteroid's surface, and left behind a thick trail of vaporized rock as it screamed over the Earth. The immense pressure started to flatten it (scientists call this " ...
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Before global warming, was the Earth cooling down or heating up? A review article published today in Nature addresses this conflict between models and evidence, known as the Holocene global temperature conundrum. Lead author Darrell Kaufman, a Regents' professor in the School of Earth and Sustainability ...
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