What Mars would look like from an orbiting space station

Imagine being in the International Space Station and looking at the world below — except instead of gazing down at Earth, it's Mars. NASA has just used its eldest Martian spacecraft to take vast panoramic images of the Red Planet from about 250 miles above the surface. That's the same altitude as the space laboratory flying continuously over Earth. Astronauts have spoken so much about how this rare perspective of our own planet has rapt them that they've given it a name: the overview effec