Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and astronauts.

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

Northern lights, or auroras, are not exclusive to Earth. Astronomers have already detected this phenomenon on most planets ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

Our Milky Way galaxy never sits still: it rotates and wobbles. And now, data from the European Space Agency's Gaia space ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

"Gaia provides the first accurate view of what our section of the Milky Way would look like from above," Lewis McCallum, an ...

A stronomers have found more evidence that there is a massive ripple traveling through the Milky Way. They have found ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

Since the 1970s, astronomers have predicted that Sagittarius A*, the supermassive black hole at the centre of the Milky Way, ...

In the 30 years since the discovery of 51 Pegasi b, more than 6,000 planets outside our Solar System have been catalogued.