Recent findings from NASA's Cassini mission reveal that Saturn's geyser moon Enceladus provides a special laboratory for watching unusual behavior of plasma, or hot ionized gas.

Researchers have now been able to show that methane escapes from a meteorite if it is irradiated with ultraviolet light under Martian conditions.

The work of a University of Tennessee, Knoxville, professor has helped reveal a rare orbital shift and the density of an asteroid that will pass close to Earth.

The long and tumultuous history of asteroid (21) Lutetia is revealed by a comprehensive analysis of the data gathered by ESA's Rosetta spacecraft when it flew past this large main-belt asteroid on 10 July 2010.

It took the Earth 10 million years to recover from a cataclysmic event that wiped out 90% of plant and animal life some 250 million years ago, according to new evidence presented Sunday in the journal Nature Geoscience.