A full-sized mock-up of the lander that may one day put the next US astronauts on the Moon was unveiled today in Houston. The mock-up of the Human Landing System will be used to help astronauts and NASA engineers provide feedback on the final design.

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The universe will most likely end by slowly fading to black over trillions of years. Now a theoretical physicist has calculated the last interesting event that will ever happen: the explosions of stars called black dwarfs, which don’t even exist yet.

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NASA's Transiting Exoplanet Survey Satellite space telescope has now wrapped up the primary phase of its mission, completing an extensive survey of the starry sky that revealed 66 new exoplanets and thousands more candidates.

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Science operations have been suspended at the Arecibo Observatory in Puerto Rico after the radio telescope was damaged on Monday August 10. An auxiliary cable supporting a platform appears to have snapped and fallen, damaging the dish.

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A NASA spacecraft has observed a pulsing glow coming from Mars. Huge spots of ultraviolet light were seen in the night sky, pulsing with uncanny regularity – exactly three times every night. The find highlights the Red Planet's atmospheric processes.

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Balloons may seem outdated, but for high-flying scientific instruments they’re making a comeback. NASA has now unveiled ASTHROS, a new infrared telescope that will be carried to the edge of space by a balloon the size of a football stadium.

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Rocket Lab experienced a notable hiccup in early July, when one of its Electron boosters was lost on its way to orbit, along with the seven satellites onboard. The company now claims to have pinpointed the source of the problem.

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History was made today as two NASA astronauts returned to Earth from the International Space Station (ISS) aboard the privately built and operated SpaceX Crew Dragon Endeavour capsule. It was the first manned splashdown since July 25, 1975.

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The universe likes to play coy about its age, but we have a pretty good idea of the range. Now, a series of new studies has investigated the question using different methods, and have reached different answers, separated by more than a billion years.

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Earth is a famously watery planet, but where exactly it all came from is a mystery. Now researchers have suggested a new origin story, by showing that water and petroleum can form inside clouds of organic matter, at high temperatures and pressure.

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