For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

At first glance, the night sky appears still. But in reality, everything moves, our Solar System being no exception. As it drifts along the Milky Way, it encounters unseen forces—dense clouds of ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...