Precise measurements of stars’ motions show that a wave is propagating outward from our galaxy’s center — perhaps from a long-ago collision with another galaxy.
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Space News & Blog Articles
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Never caught a double shadow transit on Jupiter? This week offers several chances. Meanwhile, Cassiopeia stands high and the Little Dipper leans over.
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Astrophysicist Mansi Manoj Kasliwal, whose work has been key to understanding the changing infrared sky, is guiding Palomar Observatory into its next chapter.
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Astronomers discovered a small, free-floating object that’s accreting matter at a breakneck pace, suggesting that some planet-size worlds could form similar to stars.
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The experience of truly dark skies is one that no one should miss.
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While civil servants are furloughed or working without pay, funding for NASA remains uncertain.
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It's Harvest Moon week, when the Moon shines low and bright at nightfall for many days running. Along the way it passes edge-on Saturn.
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Spacecraft orbiting the Red Planet will aim a suite of instruments at Comet 3I/ATLAS to capture details about this enigmatic object.
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After a dearth of bright comets earlier this year, we look forward to an exciting month ahead.
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Pegasus is a large, distinctive constellation that’s easy to spot. During October, you can use it — along with Saturn — to find some amazing celestial sights in their vicinity. Get all the details lots more stargazing info by downloading this month’s Sky Tour podcast!
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A fight against conventionality has driven cosmologist Stephon Alexander on a groundbreaking journey through theoretical physics.
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Primordial chemistry might destroy most of the water on sub-Neptunes; if so, there could be far fewer “water worlds” than previously thought.
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VIPER, a water-seeking rover, has gotten a new lease on life, with a new launch vehicle and lander announced by NASA.
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The waxing crescent Moon crosses Scorpius on its way to a meetup with Saturn, while the Moon's own sunrise line unveils more and more lunar lands for telescopes.
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A new heliophysics mission seeks to unlock the secrets of the region where the solar wind collides with cosmic radiation.
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The discovery of a rare Einstein Cross — five images of the same galaxy — reveals a trillion-solar-mass dark matter clump.
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An Australian amateur has discovered a binocular nova on the first day of fall, visible to viewers in the Southern Hemisphere.
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In a move that’s concerning astronomers and environmental groups alike, the Federal Communications Commission (FCC) has proposed reducing environmental oversight of space-based operations.
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On these dark evenings the Perseus Double Cluster and the Andromeda Galaxy, M31, await in the northeast. They're only two fist-widths apart.
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Astronomers using the James Webb Space Telescope have confirmed that, just 800 million years after the Big Bang, there is a galaxy that contains a supermassive black hole — and not much else.
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Titan joins its shadow for a "grand finale" this October.
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