Humans have always been fascinated with space. We frequently question whether we are alone in the universe. If not, what does ...

When an interstellar visitor slices through the solar system, astronomers usually have to make do with a fleeting, side-on ...

The search for life beyond our solar system heated up this year when scientists reported a tantalising signal from an exoplanet of a molecule that is known to be produced exclusively by life on Earth.

Americans are becoming more open to the idea that aliens have visited Earth, according to a series of polls that show belief in alien visitation has been steadily on the rise since 2012. Moreover, ...