LCROSS Mission Update In Search for Water Ice Mission Update - NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS, created twin impacts on the moon's surface early Friday in a search for water ice. Scientists will analyze data from the ... voir plus

Looming catastrophes in the sky Can we predict when an asteroid will impact Earth? Objects with orbits that bring them near to Earth are potential killers. These objects, known as NEOs (Near-Earth Objects), are asteroids or comets, which we can recognize ... voir plus

Mars Orbiter Resumes Duty New Stunning Pictures from Mars Dunes of sand-sized materials have been trapped on the floors of many Martian craters. This view shows dunes inside a crater in Noachis Terra, west of the giant Hellas impact basin in Mars' ... voir plus

Measurements performed by the space observatory Herschel Cometary Impact on Neptune A comet may have hit the planet Neptune about two centuries ago. This is indicated by the distribution of carbon monoxide in the atmosphere of the gas giant that ... voir plus

First Discovery of Life's Building Block in Comet Traces of life in comet dust "Our discovery supports the theory that some of life's ingredients formed in space and were delivered to Earth long ago by meteorite and comet impacts," said Dr. Jamie ... voir plus

Danger from Space How can we prevent an asteroid impact? A critical emergency – an asteroid or comet is on a collision course with Earth. In principle, there are two ways to avert the impact or collision of an object that is near Earth: destroy the ... voir plus

Fractures in Carbonate-Bearing Rocks at Mars' Huygens Basin Some of Mars' Missing Carbon Dioxide May be Buried Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much ... voir plus

On the Road Again "Opportunity" to View Interior of Mars Mars exploration rover Opportunity is allowing scientists to get a glimpse deep inside Mars. Perched on a rippled Martian plain, a dark rock not much bigger than a basketball was the target ... voir plus