Cosmic Collisions
Researchers have been using a vast database to show that asteroids are shaped by small impacts over time.

Listening to Planets
Scientists are beginning to understand radio emissions emitted by aurora on Earth. The new study will help future astronomers search for extrasolar planets by listening for the sounds they make.

Rain Showers on Mars
A new study of martian soil suggests there was once enough water in Mars' atmosphere for a light drizzle to reach the ground. The finding has important implications in understanding the potential for past life on Mars.

Arthur C. Clarke, A Visionary Astrobiologist
This retrospective highlights Arthur C. Clarke’s influence on space travel, space exploration, and astrobiology.

Illuminating Organics
A new technique has been developed to identify organic matter in soils using ultraviolet light. The technology could be useful in the search for signs of life on Mars.

North Versus South
According to a new study, differences between the northern and southern hemispheres of Mars could be the results of an asteroid impact. The finding could yield important information about the history and evolution of the martian environment.

Awash in Chemistry
The Phoenix Lander has performed its first wet chemistry test on martian soil. Scientists hope to understand the chemistry of wet soil on Mars, and determine if aspects of the soil might support life.

Lava Holds Clues to Planet Formation
An analysis of lava samples from Hawaii has given scientists a new tool for reconstructing planetary origins. The study will help us understand how planets form, and may help in the search for terrestrial planets beyond our solar system.

Looking for Early Earth… On the Moon
Material from Earth’s first billion years, including possible evidence of early life, may be preserved in meteorites on the moon.

Early Acid Rain
A new study of ancient minerals shows that the earliest continents on Earth may have been scoured and destroyed by the planet's harsh climate. The study has also demonstrated that the Earth may have been habitable as early as 4.3 billion years ago.