Related topics: mars

Image: Tethys the target

Like most moons in the solar system, Saturn's moon Tethys is covered by impact craters. Some craters bear witness to incredibly violent events, such as the crater Odysseus (seen here at the right of the image).

Image: Fresh crater near Sirenum Fossae region of Mars

The High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter acquired this closeup image of a "fresh" (on a geological scale, though quite old on a human scale) impact crater in ...

Impact crater or supervolcano caldera?

At first glance, the region covered by this latest Mars Express image release appears to be pockmarked with impact craters. But the largest structure among them may hold a rather explosive secret: it could be remains of an ...

Mercury crater-naming contest winners announced

The MESSENGER Education and Public Outreach (EPO) Team, coordinated through the Carnegie Institution for Science, has announced the winners from its competition to name five impact craters on Mercury after artist's. Entries ...

LROC images reveal intricate details of lunar impacts

The moon is pelted with cosmic debris all the time, but the largest explosion on its surface that we've actually recorded occurred two years ago today. On March 17, 2013, an object the size of a small boulder hit the surface ...

Crossing the boundary from high to low on Mars

On the boundary between the heavily cratered southern highlands and the smooth northern lowlands of Mars is an area rich in features sculpted by water and ice.

What was the impact that killed the dinosaurs?

What suddenly made the dinosaurs disappear 65 million or 66 million years ago? Whatever it was, all indications show that it was a massive extinction event. The fossil record not only shows dinosaurs disappearing, but also ...

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