Sentences with phrase «few impact craters»

There are few impact craters on the surface; in general, the older a surface is on Mars, the more cratered it appears.

Titan has few impact craters, meaning that its surface must be relatively young and some combination of processes erases evidence of impacts.

Not exact matches

In looking at NASA images of Mars a few years ago, Brown University geologist Peter Schultz noticed sets of strange bright streaks emanating from a few large - impact craters on the planet's surface.

Earth bears the scars of a few twin - asteroid impacts: the Clearwater Lakes near Hudson Bay in Canada, for instance, are craters that formed together about 290 million years ago.

Manson - size impacts should occur every few million years, so it is suspicious that the Manson crater is so close to Chicxulub.

As the drill approaches the crater, 800 meters down, scientists expect to find fewer species of the shell - producing animals that make up the limestone, because life was just recovering from the impact.

The poles are covered with hydrocarbon lakes and boast few craters, while the equator is a vast dune field peppered with impact scars.

Some regions have few craters, suggesting they are so geologically young they have scarcely been battered by impacts.

Scientists used up - to - date fossil records and improved analytical tools to find that, in the few million years prior to the asteroid impact that created the Yucatan's Chicxulub crater in Mexico, Earth was experiencing a major transformation in its environment, including widespread volcanic activity, changing sea levels and varying temperatures.

The Cassini - Huygens mission revealed that Titan's surface is quite young by planetary standards, with only a few large impact craters observed.