Water delivery via asteroids or comets is likely taking place in many other planetary systems, just as it happened on Earth, new research strongly suggests.
Space Exploration
May 7, 2015
3
3392
First classified a planet, then an asteroid and then a "dwarf planet" with some traits of a moon—the more scientists learn about Ceres, the weirder it becomes.
Space Exploration
Apr 13, 2015
14
1551
Sixty-six million years ago, an asteroid more than five miles wide smashed into the Earth at 70,000 miles per hour, instantly vaporizing upon impact. The strike obliterated most terrestrial life, including the dinosaurs, ...
Earth Sciences
Dec 12, 2014
20
0
(Phys.org) —A team of space scientists with members from the U.S., China and France has found via computer modeling that an asteroid due to pass close to Earth in 2029 is likely to experience minor landslides. In their ...
(Phys.org) —NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.
Astronomy
Aug 28, 2014
2
0
(Phys.org) —Examination of one of the Almahata Sitta meteorites (aka, ALM-A, found in Sudan in 2008) by a team of space scientists working in Germany has revealed a volcanic past. In their paper published in Proceedings ...
(Phys.org) —A team of researchers led by Soko Matsumura of Dundee University in Scotland has found evidence that appears to explain the inordinately large numbers of big boulders found on the surface of asteroids. In their ...
(Phys.org) —On February 15 2013, an asteroid exploded about 30 kilometers above Chelyabinsk, Russia. The explosion, shared on video around the world, was the Earth's second largest recorded airburst. By analyzing fragments ...
(Phys.org) —Scientists have long believed an asteroid that collided with the Earth around 66 million years ago, leaving an enormous crater near Chicxulub Mexico, caused the demise of the dinosaurs and many other living ...
Ancient Earth might have had an extraterrestrial supply of vitamin B3 delivered by carbon-rich meteorites, according to a new analysis by NASA-funded researchers. The result supports a theory that the origin of life may have ...
Space Exploration
Apr 17, 2014
2
0
