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Is dark matter made of mysterious 'ghost particles?' Galaxy clusters could hold the answer

If dark matter particles decay, then scientists could hunt for signs of this process, including X-ray or gamma-ray radiation or even emitted “ghost particle” neutrinos, in vast clusters of galaxies. Not only could this finally reveal what particles comprise mysterious dark matter, but it could also help astronomers understand the universe’s structure like never before. And new…
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'Super star' being shredded by black hole releases as much energy as 400 billion suns

Astronomers have witnessed a cosmic explosion that emitted as much energy as 400 billion suns. The event, which has been nicknamed “the Whippet,” is a staggeringly powerful example of a Tidal Disruption Event (TDE) and is the result of a super-sized star being shredded and devoured by a black hole. TDEs occur when stars wander too close to black holes. The immense gravity surrounding…
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Winning the Red Planet race: Returning Mars samples before China should be a top US priority, experts say

Moon boots and Mars boots: anyway you look at it there are a lot of NASA shoes still to drop. Among the agency’s missions in perpetual déjà vu status is Mars Sample Return (MSR), an attempt to bring samples of the Red Planet back to Earth, an endeavor viewed as a U.S. high priority. However, there’s also been a recurrent whirlwind of fallout about Mars Sample Return in recent years…
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China's next moonshot: Chang'e 7 could search the lunar south pole for water this year

China’s next robotic moon mission is scheduled to launch later this year, helping set the stage for the nation’s planned multi-phased lunar outpost. The Chang’e 7 mission is on tap to reconnoiter the moon’s south pole, making use of an orbiter, lander, rover and a water-seeking, well-instrumented lunar hopper. This upcoming moon trek will also help advance the International…
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