One tenth of the stars in our galaxy might provide the right conditions to support complex life, according to a new analysis by Australian researchers. And most of these stars are on average one billion years older than the Sun, allowing much more time, in theory, for any life to evolve.
A prototype device designed to prevent early warning of an anthrax attack has been developed by a NASA team. The device constantly sucks in air samples and will sound an alarm in response to a sudden increase in bacterial spores.
Brain scans can reveal whether someone is lying or telling the truth, US researchers have discovered. When people lied, fMRI (functional magnetic resonance imaging) scans revealed significant increases in activity in several brain regions.
The world's population may reach a peak of nine billion as early as 2070 and then start to shrink, according to a new analysis by Austrian researchers.
The Earth is not sufficiently protected against the risk from asteroid or comet impacts, according to U.K. taskforce. They call for Britain to join forces with European partners to build a new three-metre telescope in the southern hemisphere.