Sentences with phrase «impact ejecta»

Some now think that carbon - based life like our own is bound to arise on any Earth - like planet, and that Earth - type bacteria can even spread through space via asteroidal and cometary impact ejecta to colonize accommodating habitats anywhere.

Any rain related to the plume would have fallen after the rocky impact ejecta had been deposited outside the crater.

Charon's near - infrared spectra reveal highly localized areas with strong ammonia absorption tied to small craters with relatively fresh - appearing impact ejecta.

The authors suggest that searches for these impact ejecta layers will be more fruitful for determining how many times Earth was hit by big asteroids than searches for large craters.

Not exact matches

Large amounts of phosphorus could be from the moon impacting (moon surface = KREEP (potassium, rare earth elements, phosphorus)-RRB- Even in their picture showing meteorites landing on molten surface (lol) shows a glowing molten moon — they ignore the big blob in the sky and say «meteorites» instead of «ejecta» — they should be put up against a wall and shot with silly string and cast out into the outer darkness of unemployment to wail and gnash their rotting teeth.

But in analysing the ejecta from the comet after impact, she says, «one of the first things we saw was water ice».

However, heating of the ejecta and the low escape velocity from Mars suggests that water vapor would have been lost, implying that the moons will be dry if they formed by impact.»

«For reasons that we're not totally sure about, the same properties can arise from the scattering of rocky ejecta on the blocky terrain of young impact craters on the moon,» Campbell notes.

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.

Some of this brighter material appears to have flowed further downslope to form the heart shape, as the small impact occurred on the ejecta blanket of a much larger impact crater.

For example, a standard impact crater would boast a raised central point, an uplifted crater wall and an ejecta blanket of debris, all of which Siloe Patera lacks.

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 ice - rafted material in the Bunyeroo Formation only has been found510 m stratigraphically below and above a horizon of dacitic ejecta related to the 90 km diameter Acraman impact structure in the Mesoproterozoic Gawler Range Volcanics 300 km to the west.