Scientists have a good estimate on the staggering number of stars in the universe.

The four amateur astronauts landed safely in the Atlantic Ocean after three days orbiting Earth.

Recasting the iconic Carrington Event as just one of many superstorms in Earth’s past, scientists reveal the potential for even more massive, and potentially destructive, eruptions from the sun

The rocket engines that lauched Apollo 11 towards the moon had 5,600 parts each. 3D-printed equivalents have just 40.

In the past decade, the number of satellites in orbit has skyrocketed thanks to tiny electronics and cheap launches. The crowded night sky is posing problems for astronomers and astronauts.

The three astronauts spent 90 days at China's space station, some 380km above Earth.

The first pictures have been released showing the Inspiration4 crew looking down on the planet.

Dark energy, the mysterious force that causes the universe to accelerate, may have been responsible for unexpected results from the XENON1T experiment, deep

The largest orbital telescope ever made will allow astronomers to study the atmospheres of alien planets, learn about how stars form in the Milky Way and peer into the farthest reaches of the universe.