The two-faced star

From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

Astronomers love a challenge. They place their observatories on the highest mountains, in the driest deserts, on the coldest ice shelves, beneath the deepest oceans, in orbit around Earth and the Sun,

From strange lights in the sky to rocks that spontaneously glide across the ground, the mysteries scientists are trying to finally crack

TRAPPIST-1 is a red dwarf star located about ...

A look at some of the thousands of astronomical objects visible in Hubble’s historic photograph

In the 17th century, the great maritime nations were vying to solve a puzzle that had confounded philosophers for many centuries: how to determine exact positions on the Earth’s surface. And in Britai