Conventional images of the Earth and the moon place them close together, the moon hovering, seemingly, right over our planet's shoulder. Of course, this isn't accurate; we know just from looking at ...

TIMHi, I'm Tim Peake. I'm an astronaut based here at the European Space Agency in Germany, and from December 2015, to June 2016, I spent six months orbiting Earth on the International Space Station.

Have you ever wondered just how big space really is? It’s huge. In fact, it’s astronomical! The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on ...

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a ...