Six planets will align on Feb. 28, but not all will be seen with the naked eye. Here's how to watch the cosmic parade.

A rare six-planet alignment will be visible shortly after sunset this weekend, but there are plenty of other stargazing ...

Grab your telescope and join us on a sightseeing tour, before the moon returns to spoil the fun!

A new study hints that Saturn's largest moon, Titan, was created around 400 million years ago, when two massive moons smashed ...

Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

The snow moon, February's full moon, will peak Sunday, Feb. 1, and a lunar eclipse will occur March 2-3. Here's what to know.

Under this new model, Titan itself is the result of a collision between two earlier moons: a large body called “Proto-Titan,” ...

The moon and Venus will shine vividly alongside a bright star in the early morning in a striking celestial rendezvous that should be visible across the U.S. But unless you're willing to wake up before ...

It's time once again for the Perseid meteor shower! Meteors from this annual celestial display are remnants from the ancient comet Swift-Tuttle, which orbits the sun and deposits debris every 133 ...