Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

That said, finding a dark-sky area on a clear night towards the end of February will give you the best chance of spotting ...

"Temperamental" stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

The rare astronomical event will see Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn appear at the same time, ...

Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn will appear in a row on the evening of 28 February, marking the ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

If planets had social media accounts, the solar system would showcase a frenzy of unique personalities. Mercury tweets at ...

Spotting one or two of the planets in our solar system is well worth a good skywatch, but seeing (almost) all of them in a ...

A planetary alignment happens when several planets appear in a line from Earth’s point of view. Mercury will join Venus, Mars ...

Towards the end of the month, Mercury appears in the evening sky, and climbs up past Saturn. In the dusk glow, you may be ...