Settling of dust warms tropical Atlantic
A decline in aerosols could account for most of the rise in regional ocean temperatures.
Q&A: Steve Squyres on planetary priorities
Chief of Mars rover missions talks about short-listing missions for US planetary science.
Could nanomachines give friction the slip?
The quantum stickiness between very close surfaces produces no drag when they move, researchers claim.
Abel prize awarded to Mikhail Leonidovich Gromov.