
Solved: The Mystery of the Martian Meteorites
Precision dating of a single rock resolves lingering uncertainties about the Red Planet’s history

Solved: The Mystery of the Martian Meteorites
Precision dating of a single rock resolves lingering uncertainties about the Red Planet’s history

Curiosity Rover Samples Air for a Taste of Mars History
Early data from the rover teases out new details of Mars’s atmosphere and how it changed over billions of years


First Distant Planet to Be Seen in Color Is Blue
The Hubble Space Telescope was used to measure visible light from one of the best-studied planets outside our solar system, HD 189733 b

Channel Surfing: Are Dry Ice Sleds Carving the Surface of Mars?
Researchers have found that chunks of dry ice, jetting around on cushions of gas, may be responsible for mysterious channels on the Martian surface

Tiny Plants That Once Ruled the Seas
Around 250 million years ago animals in the seas began to diversify with gusto. Remarkably, the evolution of minute plants known as phytoplankton probably powered that dramatic explosion

Mars Rover Breaks U.S. Record for Off-Planet Driving
The Opportunity rover passed the Apollo 17 moon buggy, which covered 22.21 miles back in 1972, but the Soviet Union still holds the international record

The Long and Arduous Quest to Find Flowing Water on Mars May Be Over
The surface of Mars changes all the time. Is flowing water one of the causes?

Obama Praises Mars Rovers, U.S. Science in Speech
In his address to the National Academy of Sciences on their 150th anniversary, Pres. Obama expressed his support for the sciences as a fundamental part of American life in today's world

In Haiti Poverty and Darkness Create More Vulnerability to Powerful Storms
Rural electrification lags far behind moribund urban electricity supply in the struggling Caribbean nation

Gentle or Jumping? The Varied Lives of "Hot Jupiters"
A newborn star's iron abundance foretells whether its gas giants face a violent future

Mars-Life Hypothesis Gets a Fresh Look
At a recent scientific conference in Los Angeles, scientists explored the possibility of Mars being habitable, or even inhabited by microbes, in the present day

Could Life Have Evolved on Mars Before Earth?
New observations by NASA's Curiosity rover suggest that microbial life could have survived on Mars in the distant past