A side benefit of NASA's Curiosity rover mission is that we now know about how much radiation an interplanetary traveler would face. John Matson reports

Isotopic analysis of water trapped in volcanic glass in lunar samples show that the moon has more water than thought, and the water there and on Earth had the same origins. Karen Hopkin reports

After nine (Earth) years of slowly traversing Mars, Opportunity broke the U.S. off-world rover record held by Apollo 17's lunar buggy since 1972. John Matson reports.

When facing a lot of choice, it is best to decide on one option and then physically shut off all others. Christie Nicholson reports

Silicon-rich rocky material was found around white dwarfs in the Hyades star cluster by the Hubble Space Telescope, despite the fact that almost no known planets exist in star clusters. John Matson reports

The brains of psychopaths react differently to images of someone being hurt than the brains of non-psychopaths. Christie Nicholson reports

We tend to diminish the value of money earned through questionable means. Christie Nicholson reports

Based on the Milky Way's effect on the motion of a nearby dwarf galaxy, our galaxy seems to have more mass than we previously thought. John Matson reports

A long-term survey of more than 10,000 people finds that green spaces make for better moods. Christie Nicholson reports

NASA's orbiting Kepler telescope recently spotted three exoplanets in or near their stars' so-called habitable zones, the temperate region where a planet could accommodate liquid water. John Matson reports