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NASA still is not sure when two astronauts might come home in Boeing's new Starliner spacecraft.
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NASA's budget proposal would basically axe the most powerful X-ray telescope in the world, and astronomers are scrambling to save it.
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A report from Nature shows that astronomers may have found a medium-sized black hole, a kind they've long looked for.
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A SpaceX rocket has failed for the first time in nearly a decade, leaving the company’s internet satellites in an orbit so low that they're doomed to fall through the atmosphere and burn up.
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The galaxies' fanciful names belie their actual ages: In this case of the Penguin and the Egg, it’s the Egg that came first.
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A report from Nature shows that astronomers may have found a medium-sized black hole, a kind they've long looked for.
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The four crew members entered the 3D-printed Mars replica on June 25, 2023, as part of a NASA experiment to observe how humans would fare living on the Red Planet.
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NPR's Adrian Florido speaks with retired astronaut Terry Virts about what the Boeing Starliner astronauts might going through being in space longer than they thought they would be.
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The return of Starliner has been indefinitely delayed, but NASA and Boeing say the astronauts will use the spaceship to get home — eventually.
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Problems with the capsule's propulsion system, used to maneuver the spacecraft, prompted NASA and Boeing to delay the flight home several times while they analyzed the trouble.
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The spacecraft experienced numerous leaks and technical glitches. NASA says it's using the extra time to evaluate whether it can return safely.
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The far side of the moon looks very different from the near side, and with the Chang'e 6 mission, scientists are hoping to learn why.