john grunsfeld

A hibernating Nasa spacecraft has been called back into service to identify potentially hazardous near-earth objects and search asteroids that astronauts could explore.

"Definitive evidence" of extra-terrestrial beings may be found within the next 20 to 30 years, top Nasa scientists say.

Signs of alien life will be detected by 2025, while "definitive evidence" of extra-terrestrial beings may be found within the next 20 to 30 years, top Nasa scientists say.

The US space agency is gearing up for the mission designed to gain a better picture of the structure and composition of Moon's thin atmosphere.

Encouraged by the success of “Curiosity”, NASA has announced to launch a new Mars mission in 2016 to take a better look into the guts of the Red Planet.

Nasa says that this was the first time any robot has drilled into a rock to collect samples from Mars.The announcement says that the hole drilled into the rock is 1.6cm wide and 6.4cm deep.

Nasa has announced plans for a robust multi-year Mars programme, including a new robotic science rover set to launch in 2020.

Flying high over Antarctica, NASA's long duration balloon has broken the record for longest flight by a balloon of its size.

Nasa's venerable Kepler space telescope's count of exoplanets has passed the magic 1,000 mark, including eight new planets and 544 candidate planets.

Nasa has started work on a new telescope with a view 100 times bigger than that of Hubble Space Telescope that may help unravel the mysteries of dark matter and advance the search for alien life. The mission is led by Nasa's Goddard Space Flight Centre in Maryland.

NASA has successfully installed the first of 18 flight mirrors onto the James Webb Space Telescope, beginning a critical piece of the observatory's construction to replace the Hubble Space Telescope in 2018.

Nasa's Hubble, Spitzer and Chandra space telescopes are teaming up to look deeper into the universe than ever before and search for the most distant and faint galaxies that can possibly be seen.

NASA's New Horizons spacecraft has sent back some of the sharpest images of Pluto, showing a wide variety of cratered, mountainous and glacial terrains, which may be the best close-ups of the icy-dwarf planet that humans could see for decades.

After more than four years of orbiting Mercury, NASA's MESSENGER spacecraft will crash into the solar system's innermost planet in two weeks when it runs out of propellant. the solar system's innermost planet in two weeks when it runs out of propellant.

Nasa's Kepler mission has found 715 new planets in what is the largest number of planets discovered in a single go.

About 3.5 billion kilometers from Earth, Nasa's New Horizons spacecraft has started sending pictures of Pluto that are revealing bright and dark regions on the surface of the faraway dwarf planet.

Twenty four hours after the successful flyby of Pluto, New Horizons achieved another milestone with the piano-sized Nasa spacecraft discovering icy mountains on the planet.

: Nasa’s New Horizons spacecraft, now some 56 million kilometers beyond Pluto, and 4.9 billion kilometers from Earth, will head for a mysterious 45 kilometer wide object floating in the icy Kuiper Belt.

Nasa is planning a mission to Jupiter's moon Europa to search for signs of alien life on the icy, ocean-harbouring world.