NASA's two GRAIL probes have now successfully been placed in orbit around the moon.
NASA's twin GRAIL spacecraft will be placed into orbit around the moon over the New Year weekend, in preparation for their mission to study its composition and gravity field.
NASA has released a number of new images of Saturn and Titan snapped by the agency’s Cassini spacecraft.
NASA says its discovered two Earth-sized planets that have been swallowed up by their star - and survived.
By 2100, nearly 40 percent of land-based ecosystems - forest, grassland or tundra, for example - will have moved from one type to another.
To the surprise and delight of astronomers, a comet discovered just two weeks ago as it hurtled towards the sun has skimmed the star and re-emerged the other side.
NASA's Rossi X-ray Timing Explorer (RXTE) satellite has identified a candidate for the smallest-known black hole.
NASA is planning to use a giant crossbow and harpoon to capture samples from a speeding comet.
NASA's Dawn spacecraft has successfully maneuvered into its closest orbit around the giant asteroid Vesta.
There may finally be an explanation as to why the federal government has adopted such a harsh stance against the unauthorized trade of moon rocks.
New research from NASA into the Earth's paleoclimate history indicates we could be facing rapid climate change this century, including sea level rises of many meters.
NASA's Opportunity rover has found veins of a mineral that appears to be gypsum, and which could only have been deposited by flowing water.
The tidal wave that hit Japan in March was formed by two separate tsunamis, in a phenomenon that had been theorized but never before observed.
The introduction of the Clean Air Interstate Rule in 2005 has led to a big reduction in pollution from eastern US coal power plants, data from NASA's Aura satellite shows.
NASA has confirmed that its Curiosity rover will depart for Mars on November 26 from Space Launch Complex-41 at Cape Canaveral Air Force Station, Florida.
The term's used to describe explosive volcanic eruptions that eject about ten thousand times the quantity of magma and ash as Mount St Helens, one of the most explosive eruptions in recent years.
NASA is in the final stages of preparing its Mars Curiosity rover for a launch from Florida's Space Coast on November 25.
NASA's explained - with some weariness, one imagines - that next year really isn't going to see the release of any massive solar flares which could destroy the Earth.
A Russian Soyuz spacecraft blasted off successfully for the International Space Station late last night, carrying one American and two Russian astronauts.
NASA engineers have produced the blackest stuff ever created - a material that absorbs more than 99 percent of the ultraviolet, visible, infrared, and far-infrared light that hits it.