European backup for NASA's nailbiting Mars mission

Europe's Mars Express spacecraft will lend its eyes and ears to NASA next week for the so-called "seven minutes of terror" in which the US agency will seek to land a rover on Mars.

The Solar System's grandest canyon

Earth's Grand Canyon inspires awe for anyone who casts eyes upon the vast river-cut valley, but it would seem nothing more than a scratch next to the cavernous scar of Valles Marineris that marks the face of Mars.

Buried glaciers on Mars

This jumble of eroded blocks lies along the distinctive boundary between the Red Planet's southern highlands and the northern lowlands, with remnants of ancient glaciers flowing around them.

page 18 from 40