Recent data has shown carbon-dioxide levels are at unprecedented levels in human history, and that by mid-century they will rise to the highest levels seen in over 50... Read More

Why is there a spiral around the North Pole of Mars? Each winter this pole develops a new outer layer about one meter thick composed of carbon dioxide frozen out of the... Read More

Amongst the glimmering patchwork of stars, scientists have discovered an earth-sized diamond in space. Leftover from a cooled white dwarf, the chunk of carbon was found... Read More