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OSIRIS-REx: NASA's Asteroid Sample-Return Mission in Pictures

NASA’s OSIRIS-REx asteroid mission launched in 2016 to collect samples of the asteroid Bennu and return them to Earth. See photos from the mission here. On Sept. 22, 2017, OSIRIS-REx will fly by Earth in a gravity assist maneuver (shown here in an artist’s illustration) to accelerate it on its way to Bennu. To source

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The 10 Best 'Star Trek' Episodes Ever

As fans of the series know, the premise of “Voyager” is that the crew becomes stranded some 75 years’ travel away from home. By Season 6, we are pretty confident that the crew has well assimilated (so to speak) this knowledge, but they come across a ship in the same quadrant that has more questionable […]

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E.T. Art? Crop Circles Look 'Alien' from Space

These crop circles have been created using a technique called center-pivot irrigation. Seen from space, these discs look more like modern art than like potatoes. But that — plus wheat and chamomile — is what these “crop circles” likely are, according to the NASA Earth Observatory, which posted this photo of agricultural fields in Sharq […]

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Space Lung Tissue Experiment Returns to Earth

A lung tissue experiment returned aboard SpaceX’s CRS-12 cargo capsule this week. Lung-tissue samples grown on the International Space Station, which have just arrived back on Earth, could help researchers understand how space travel affects breathing.  Little is known about how conditions in space affect astronauts’ lungs, according to Joaquin Cortiella, director of the Lab […]

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Hurricane Maria Slams Puerto Rico's Arecibo Observatory

This visible-light image of Hurricane Maria was captured by the GOES East satellite on Wednesday (Sept. 20) at 10:45 a.m. EDT (1445 GMT) as the then-Category 4 hurricane swept across Puerto Rico. Hurricane Maria hit Puerto Rico Wednesday (Sept. 20), battering the U.S. territory with heavy winds and torrential rainfall. Now that the worst of […]

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Arecibo Observatory: Watching for Asteroids, Waiting for E.T.

Astronomers use the huge Arecibo Observatory, a radio telescope in Puerto Rico, to study the close flyby of Earth by asteroids. Credit: Arecibo Observatory/NSF Arecibo Observatory, which is in Puerto Rico, is the location of the world’s largest single-dish radio telescope. Because radio telescopes can work at all times of day and in all kinds […]

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