Throughout January, a rare planetary alignment will become visible in the night sky, promising a rare celestial delight.

Mars, Venus, Jupiter, and Saturn can be spotted without special equipment, with Uranus and Neptune requiring a telescope.

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 ...

These are the planets that will be visible with the naked eye. A rare parade of planets will light up the night sky ...

Have you read on social media about the “once in 396 billion years” planetary alignment happening on Jan. 25? Guess what? Social media is not reliable. Here’s what’s really going on — and why you ...

Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

The night sky is putting on a celestial show with a dazzling "planetary parade" featuring six major planets and a bonus comet.

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

Hot Jupiters are giant planets initially known to orbit alone close to their star. During their migration towards their star, these planets were thought to accrete or eject any other planets present.

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