Two tests use cosmic laboratories to question if the laws of physics are universal.
New style of 3-D sensors lets ships avoid hidden obstacles.
Video: The Lynx rocket can blast passengers into suborbit within a few minutes.
Scientists are investigating the construction of an elevator – a super-strong carbon ribbon reaching into orbit – that would transform the way we explore space, reducing the cost and the risks.
Studies of forests and deserts yield new insight into how much carbon dioxide those areas can absorb.
A new autonomous robot can cruise underwater for seven months on a single battery charge.
Through biomimetics, scientists teach machines some tricks that evolution perfected long ago.
Remnants from the explosions of stars in the 16th and 17th centuries are seen today.
The gamma ray telescope, slated to launch soon, could yield insights into such mysteries as dark matter.
Phoenix Mars lander, new space-station lab, Saturn's 'bumper cars,' and looking ahead to NASA's gamma-ray observatory.