A massive space rock that will shave by Earth on Halloween looks like a dead comet with a skull face, NASA said after gaining a closer look at the spooky space object.
On the hunt for alien worlds that might support life, NASA's unmanned Cassini spacecraft has survived its closest-ever dive through the icy spray coming from Saturn's moon Enceladus.
NASA's yearlong spaceman, Scott Kelly, chalked up his first spacewalk Wednesday just hours before he sets a record for the nation's longest trip off the planet.
Researchers from the University of Liverpool are using strategic game theory to analyse the accumulation of space debris, and to assess removal efforts and mitigation measures to limit its growth.
A multi-billion-dollar robot dispatched to Mars to search for life must steer clear of promising "hot spots" for fear of spreading microbes from Earth, NASA project scientists said Thursday.
Europe sent two satellites into space Friday as it pushes to get its beleaguered Galileo satnav programme back on track.
European experts have pulled off a major advance that might one day help build new worlds in space after an astronaut in the International Space Station remotely guided a robot on Earth by feel.
Six people shut themselves inside a dome for a year in Hawaii, in the longest US isolation experiment aimed at helping NASA prepare for a pioneering journey to Mars.
Enceladus looks as though it is half lit by sunlight in this view from NASA's Cassini spacecraft, but looks can be deceiving. The area on the right, where surface features can be made out, are actually illuminated by light ...
The European space probe Rosetta captured a range of scientific data Thursday as it trailed an ancient comet past the Sun which could help scientists better understand the origins of life on Earth.