Our Solar System, like a sneaky little hobbit, seems to have stuffed its pockets full of hidden oceans. Jupiter, Saturn, Uranus, and Neptune all have moons astronomers think might be harboring liquid ...

Astrophotographer Andrew McCarthy has millions of fans worldwide who love the stunning images he captures and creates of the ...

The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

These are known as hypervelocity stars, with some moving faster than the escape velocity of the Milky Way of around 600 kilometers (373 miles) per second. There is another star that is almost as ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

STARGAZERS are in for a treat this month as a rare planet parade falls in Andromeda galaxy season. “One of the best planet ...

The brightest planets in the night sky will shine as the 'planet parade' continues throughout February, plus be on the lookout for the Moon to join the line-up, and for Saturn to 'tag' Mercury in ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that the next won’t happen until 2040.