A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object—designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, ...
Space Exploration
Sep 13, 2019
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Near-Earth objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth. NEOs are consequently potential collision threats, but scientists are also interested in them because they offer ...
Space Exploration
Jul 1, 2019
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A pair of researchers has found possible evidence of an extrasolar object striking the Earth back in 2014. In their paper uploaded to the arXiv preprint server, Amir Siraj and Abraham Loeb describe their study of data in ...
1. Why Asteroids Impact Earth
Space Exploration
Apr 12, 2019
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On March 11, 1998, asteroid astronomers around the world received an ominous message: new observational data on the recently discovered asteroid 1997 XF11 suggested there was a chance that the half-mile-wide (nearly one kilometer) ...
Space Exploration
Jul 24, 2018
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Around sunrise on Feb. 15, 2013, an extremely bright and otherworldly object was seen streaking through the skies over Russia before it exploded about 97,000 feet above the Earth's surface. The resulting blast damaged thousands ...
Space Exploration
Jun 28, 2018
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Near-Earth objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth, potentially threatening a collision. NEOs are tracers of the composition, dynamics and environmental conditions ...
Astronomy
Jun 22, 2018
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The U.S. government is stepping up efforts to protect the planet from incoming asteroids that could wipe out entire regions or even continents.
Space Exploration
Jun 20, 2018
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Fallen trees at Tunguska, Imperial Russia, seen in 1929, 15 km from epicentre of aerial blast site, caused by explosion of a meteor in 1908 (Photo N. A. Setrukov, 1928).
Space Exploration
Jun 7, 2018
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Once every month, on average, somewhere on Earth a fireball appears out of nowhere and for mere seconds, casts a blinding flash across the sky before it blows up in a thunderous explosion. It happened last Saturday over southern ...
Space Exploration
Jun 7, 2018
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