Scientists look for technologies to push particles faster, better, and cheaper.
Perchlorate exists, too, in soils on Earth. Its presence probably has little bearing on prospects for life on Mars, scientists say.
Soot, derived from many sources, needs to be looked at more closely by atmospheric researchers.
Thin, bendable, organic screens of sci-fi movies are almost here.
Scientists listen to one deep sea swimmer, seeking new insights on the evolution of communication.
NASA plans to visit the sun with a heat-resistant spacecraft designed to gather information on solar wind and magnetism.
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.