On Tuesday evening, six planets will line up in the night's sky - Mars, Jupiter, Neptune, Saturn, Uranus and Venus. Best ...

A new study, currently under review for publication, suggests that an ancient cosmic visitor might have significantly altered the orbits of our solar system's giant planets. Scientists propose that ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Twenty years ago, the Huygens probe achieved humanity's first landing on a moon in the outer solar system when it touched ...

Jan. 21. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There ...

There are no doubt some famous stories that Season 6 will target: The Velveteen Dream, Ashley Massaro, maybe even the fall of ...

Astrophysicists have imaged a large number of exocomet belts around nearby stars, and the tiny pebbles within them. The crystal-clear images show light being emitted from these millimeter-sized ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the ...

On Jan. 4, Saturn briefly hid behind the crescent moon, escaping the view of skywatchers in Europe, Africa, western Russia ...

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the ...