Related topics: nasa · stars · earth

Five in a row—the planets align in the night sky

For the second time this year, the five brightest planets can be seen at the same time. You can catch them by looking towards the western sky after sunset. The planets will form a line rising up from the horizon.

Earth always has a second temporary moon, researchers claim

In the fall of 2006, observers at the Catalina Sky Survey in Arizona found an object orbiting the Earth. At first, it looked like a spent rocket stage -- it had a spectrum similar to the titanium white paint NASA uses on ...

Was that Santa up there? No, Soyuz rocket debris

A ball of light streaking across the night sky in northern Europe on Saturday at a time when many imagined that Father Christmas was doing his rounds was nothing more than Soyuz rocket debris, Belgian experts say.

How are planets formed?

How did the Solar System's planets come to be? The leading theory is something known as the "protoplanet hypothesis", which essentially says that very small objects stuck to each other and grew bigger and bigger—big enough ...

page 1 from 40