For thousands of years, humanity has looked up at the stars asking the same question. Are we alone? Then one day, it finally ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

One of Saturn's moons could harbour alient life, scientists say – but don't expect a call from ET any time soon. Life in this case means micro-organisms in oceans deep beneath Enceladus’s frozen ...

WHEN Darwin published his theory of evolution in 1859, he gave a convincing account of how life on Earth has evolved over billions of years, from simple microbes to the diversity of the biosphere we ...

Scientists have proposed a lunar quarantine facility to screen extraterrestrial samples before they reach Earth, citing the risk of unknown biological contamination. By NASA - Public Domain, via ...

With the release of "Disclosure Day," Steven Spielberg's new film about aliens, a question as old as science fiction itself resurfaces: If aliens were to arrive on Earth, would they come to conquer us ...

The search for alien life has mostly focused on water, oxygen, and distant Earth-like planets. Now another clue has entered the picture. Researchers say living systems may leave behind a hidden ...

LIQUID asphalt is not a likely home, but hardy microbes have been found thriving in a natural lake made of the stuff. The discovery hints that alien life could exist in similar places. Microbes are ...