When astrobiologists are asked what aliens might look like, many now point not to distant galaxies but to some of the ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

Scientists have discovered an 'alien' material inside a massive crater on Earth, sparking new questions about how life may ...

The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth.