asteroid
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2,000-foot-wide 'potentially hazardous' asteroid has just made its closest approach to Earth — and you can see it with a telescopeThe 2,000-foot-wide asteroid 2013 NK4 just made its closest approach to Earth in recorded history, sailing by at about eight lunar distances. You can still see the massive rock with a backyard telescope.
By Harry Baker Published
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Car-size asteroid discovered 2 days ago flies by Earth at 1/30th the distance of the moonA newly discovered asteroid got within 12,000 miles of Earth on a harrowing, ultra-close approach today. The space rock won't return for 70 years.
By Josh Dinner Published
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Boulders flung from NASA's asteroid-smashing DART mission could crash into Mars, study predictsDozens of boulders dislodged by NASA's asteroid-smashing DART test could hit Mars in the future, new research suggests.
By Joanna Thompson Published
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'Potentially hazardous' asteroid Bennu contains the building blocks of life and minerals unseen on Earth, scientists reveal in 1st comprehensive analysisScientists shared the first comprehensive science results from NASA's OSIRIS-REx asteroid-sampling mission at the Lunar and Planetary Science Conference, revealing the out-of-this-world makeup of asteroid Bennu.
By Sharmila Kuthunur Published
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Why aren't all orbits circular?Why do some celestial bodies have tadpole or even horseshoe-like orbits?
By Alice Sun Published
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Water detected on the surface of an asteroid for the 1st time everScientists detected water molecules on the surface of two asteroids for the first time ever. The team made the discovery using data from NASA's now-retired SOFIA airborne observatory.
By Samantha Mathewson Published
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Meteor that exploded over Germany confirmed to be rare 'aubrite' as old as the solar system itselfA meteor that exploded over Germany on Jan. 21 was confirmed to be a rare aubrite, a type of asteroid as old as the solar system.
By Robert Lea Published
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Asteroid Bennu may be 'a fragment of an ancient ocean world', 1st sample analysis suggestsScientists are working hard to analyze samples of the potentially hazardous asteroid Bennu, with early results suggesting it may even be a chunk of an ancient water world.
By Leonard David Published
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How NASA correctly predicted that a tiny asteroid would burn up over Germany, hours before it happenedAstronomers detected a small asteroid zooming toward Earth's atmosphere on Jan. 21, correctly predicting it would explode over Germany within hours. Here's how they did it.
By Mike Wall Published
