Sentences with phrase «ejecta on»

Rather, Palumbo said, «The vast majority of the valleys seem to emerge from beneath the ejecta on its outer periphery, which casts serious doubt on the rainwater scenario.»

«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.

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.

«The band has not faded significantly since September, indicating that this ejecta may take years to settle out of the upper atmosphere,» says Tom Herbst of the Max Planck Institute for Astronomy in Heidelberg, Germany, who used a 3.5 - metre telescope to study Jupiter in the near infrared on 19 December.

And yet, some of Mercury's craters have streaks of ejecta comparable in length to those found on the moon.

Update: On 16 October, NASA released an image of a faint ejecta plume observed by the LCROSS shepherding spacecraft.

«Based on the likely location of ice deposits during this period of Mars» history, and the amount of meltwater that could have been produced by Lyot ejecta landing on an ice sheet, we think this is the most plausible scenario for the formation of these valleys» said David Weiss, a recent Ph.D. graduate from Brown and the study's lead author.

The reason for that, they suggest, is that instead of landing directly on the surface, ejecta from Lyot landed on a thick layer of ice, which prevented it from gouging the surface beneath the ice.

Based on data in part from MGS, researchers noted a lack of ejecta debris in the region as well as features that usuallly point to volcanism, such as «bathtub rings» created when lava recedes from the area.

Remarkably, many of the particles that rain down on Jupiter's poles appear to be ejecta from volcanoes on Io.

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.

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.