One of the largest asteroids in our solar system - Vesta - may once have had flowing water which formed gullies and other erosion features on its surface, according to data from NASA's Dawn spacecraft.
A team of scientists using ice-penetrating radar data collected by NASA's Operation IceBridge and earlier airborne campaigns have built the first comprehensive map of layers deep inside the Greenland Ice Sheet, opening a window on past climate conditions and the ice sheet's potentially perilous future.
Last year was Earth`s hottest on record in new evidence that people are disrupting the climate by burning fossil fuels that release greenhouse gases into the air, two U.S. government agencies said on Friday.
US space agency NASA's New Horizons spacecraft officially began its long-awaited, historic encounter with Pluto on Thursday. The spacecraft will approach to the dwarf planet with the first close-up flyby scheduled for July 14.
NASA's private sector partner Space Exploration Technologies Corporation (SpaceX) has sent its Dragon spacecraft to the International Space Station (ISS) with over two tonnes of supplies and science investigations.