Research group suggests Chicxulub crater may have been caused by binary asteroids
Prehistoric humans not wiped out by comet, say researchers
(Phys.org)—Comet explosions did not end the prehistoric human culture, known as Clovis, in North America 13,000 years ago, according to research published in the journal Geophysical Monograph Series.
Study rebuts hypothesis that comet attacks ended 9,000-year-old Clovis culture
(Phys.org)—Rebutting a speculative hypothesis that comet explosions changed Earth's climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough ...
Fossilized conduits suggest water flowed beneath Martian Surface
(Phys.org)—Networks of narrow ridges found in impact craters on Mars appear to be the fossilized remnants of underground cracks through which water once flowed, according to a new analysis by researchers ...
Curiosity maneuver prepares for drilling
(Phys.org)—NASA's Mars rover Curiosity has placed its drill onto a series of four locations on a Martian rock and pressed down on it with the rover's arm, in preparation for using the drill in coming days.
Study: Martian crater may once have held groundwater-fed lake
(Phys.org)—A NASA spacecraft is providing new evidence of a wet underground environment on Mars that adds to an increasingly complex picture of the Red Planet's early evolution.
Reull Vallis: A river ran through it
(Phys.org)—ESA's Mars Express imaged the striking upper part of the Reull Vallis region of Mars with its high-resolution stereo camera last year.
What craters on the Moon teach us about Earth
Some questions about our own planet are best answered by looking someplace else entirely… in the case of impact craters and when, how and how often they were formed, that someplace can be found shining ...
Christmas sky show
(Phys.org)—Just when you thought Christmas was over: At the end of the day on Dec. 25th, a pair of holiday lights will pop out of the deepening twilight. Jupiter and the Moon are having a Christmas conjunction.
Ecuador volcano blasts lava high above crater
Volcano monitors say Ecuador's Tungurahua volcano shot lava a half mile (1 kilometer) above its crater overnight and blasted hot rock and gas nearly 2 miles (3 kilometers) down its flank.
Charitum Montes: A cratered winter wonderland
(Phys.org)—The high-resolution stereo camera on ESA's Mars Express imaged the Charitum Montes region of the Red Planet on 18 June, near to Gale crater and the Argyre basin featured in our October and November ...
Altimeter built at Goddard helped identify ice on Mercury
A Goddard-built instrument on NASA's MESSENGER mission provided one of three new lines of evidence that water ice exists near the north pole of Mercury. Most of the ice is covered by a thin layer of materia ...
MESSENGER finds new evidence for water ice, organic material at Mercury's poles
(Phys.org)—New observations by the MESSENGER spacecraft provide compelling support for the long-held hypothesis that Mercury harbors abundant water ice and other frozen volatile materials in its permanently ...
How does a volcanic crater grow? Grab some TNT and find out (w/ video)
A new University at Buffalo study in the journal Geophysical Research Letters examines maar craters, which resemble the bowl-like cavities formed by meteorites but are in some ways more mysterious.