Carbon-containing meteorites look like they had less severe impacts than those without carbon because the evidence was ...

By contrast, Deimos is tiny, with a radius of 6 km, and quite a bit further out, more than 23,000 km from the surface. It is so small that, on the surface of Mars, Deimos would only appear about as ...

"The picture features a rare cosmic phenomenon — an Einstein ring. What appears to be a single, strangely shaped galaxy is actually two galaxies far apart," the European Space Agency explained ...