Sentences with phrase «deep impact craters»

Each grainy image took eight hours to receive, but the payoff was huge: Surprising evidence of deep impact craters banished the popular idea of Mars as a chillier version of Earth.

Not exact matches

Morgan asked the International Ocean Discovery Program (IODP), a global collaboration of marine research, for more than $ 100 million to collect six 2 - mile - deep cores from around the crater's center to better understand peak ring formation and the impact's environmental effects.

The impact aftermath killed most life on Earth, but the crater itself (bottom)-- shown with a central peak — remained hot long after the blast, perhaps creating a hydrothermal system similar to deep - sea vents.

Second Life: Just months after the craft dropped its payload to Earth in 2006, remotely fired its thrusters to change its course for a new mission, called Stardust - NExT, to photograph the crater created by Deep Impact.

Among other things, GRACE may have found a crater deep under the Antarctic ice that may mark an asteroid impact greater than the one that doomed the dinosaurs, measured the seafloor displacement that triggered the tsunami of 2004, and quantified changes in subsurface water in the Amazon and Congo river basins.

In particular, the Deep Impact mission blasted a crater in the comet Tempel 1 so astronomers could study the makeup of the debris, providing a «Rosetta stone» for interpreting the composition of material around stars, says Lisse, who led the Deep Impact analysis.

Clays also tend to be found in and around large impact craters, where material from deep below the surface has been excavated.

Among the oddities of liquid impacts into granular solids: slow - falling droplets can make deeper craters than their speedier brethren

You can scoop up bits of stishovite at the scene of meteorite impacts, such as a 50,000 - year - old meteor crater in Arizona that measures about 3 / 4 - mile across and about 570 feet deep.

Scientists revealed that the deep hole on Mars is not an impact crater, due to the lack of signs of ejecta or a raised rim.

Stardust spacecraft visited Comet Tempel 1 in February 2011 where it viewed the impact crater from the Deep Impact mission ofimpact crater from the Deep Impact mission ofImpact mission of 2005.

In addition, the collision with a 372 - kilogram (820 - pound) projectile launched by NASA's Deep Impact probe in 2005 has created a 150 - meter - wide (490 - foot - wide) crater with a small mound in the center, as some of the ejecta of the impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, Impact probe in 2005 has created a 150 - meter - wide (490 - foot - wide) crater with a small mound in the center, as some of the ejecta of the impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, impact apparently fell back down within the crater, but the crater's relatively soft outline indicates that its edges have undergone significant changes since the 2005 impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, impact (NASA / STARDUST / NExT news release; Astronomy Picture of the Day; David Shiga, New Scientist, February 15, 2011; Jonathan Amos, BBC News, February 15, 2011; and Richard A. Lovett, Nature News, February 15, 2011).

The most conspicuous feature on Vesta is a giant impact crater located around its south polar region, which is 310 miles (499 kilometers) across and nearly 12 miles (19 km) deep around a «bull's - eye» central peak rising 11 miles (or 18 km) above the exposed mantle rock of the crater floor — that is characteristic of rock rebounding from an impact.