Two scientists want NASA to build a quarantine lab for alien germs on the Moon, rather than on Earth. The pair, ...

Efforts to manage invasive alien plant species in forests could be held back by a continued reliance on chemical methods, according to a new study. Research led by Lizzie Keen, a postgraduate ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

That sharp, briny smell is not the salt, it is a gas made by life, breathed out by tiny ocean creatures too small to see. For ...