NASA

Nasa scientists have discovered movement in sand dunes for the first time on the Mars

Some galaxies found to be 1,000 times brighter than our Milky Way galaxy.

MIRI Optical System is an instrument for the James Webb Space Telescope.

The new discovery, scientists believe, is a major step towards the search for signs of life on other planets.

Scientists bust myths that the super moon causes natural disasters like tsunami and earthquake.

Nasa Astronomers discover massive black hole shredding a star that wandered too close.

A new ultra luminous X-ray source found in Messier 83, a spiral galaxy about 15 million light years from earth.

Nasa's Wide-field Infrared Survey Explorer (WISE) satellite capturesan ageing star erupting dust on the cosmos.

Phoebe has more planet-like qualities than previously estimated.

Scientists discover spiral patterns left behind by lava flows in the Athabasca Valley on Mars.

Nasa's Dawn spacecraft finds iron and magnesium on Vesta.

Warm ocean currents attacking the underside of the ice sheets are causing major loss of Antarctic glaciers, suggests a new study.

Launched on April 24, 1990 aboard space shuttle's Discovery's STS-31 mission, Hubble revolutionized the study of universe and helped scientists unravel many evolution theories.

Sombrero galaxy has both the shapes of round and thin disks and is located 28 million light-years away in the constellation Virgo.

As the earth's climate warms, the methane frozen in reservoirs stored in Arctic tundra soils or marine sediments is released into the atmosphere.

From a beach holiday destination in the Caribbean, Niagara Falls in Canada to a volcanic island in Indonesia, here are some of the most stunning snapshots of earth taken by GeoEye-1 satellite from several miles above.

Discovery made by scientists from Nasa's Cassini spacecraft.

Nasa images highlight drastic impact of climatic change on earth's environment.

Images include the Nile River Delta at night and a scenic view of the Northwest Greenland Canyons.

Highlights of the auction include several artefacts from Apollo astronauts' collections.

The mission, to be launched in 2016, will help amateur astronomers know more about the asteroid population.