An international team of astronomers reports the discovery of a new giant exoplanet around an M-dwarf star (GEMS). The ...

Scientific American spoke with the astronomer who has contributed to the discovery of two thirds of Saturn’s known moons ...

Following the much-ballyhooed “planet parade” this winter, the planets have been gradually dipping below the horizon, ...

"Saturn and Mars will be the easiest to spot higher up in the southeastern sky, while Jupiter and Mercury will be low on the ...

It has now overtaken Saturn as the planet with the most moons.

"Rings are mostly made of ice and small rocks," said William Saunders, a planetary scientist at NASA's Langley Research ...

Saturn is a gas giant, like Jupiter, with no solid surface. It is primarily composed of hydrogen and helium, making it one of the lightest planets relative to its size. Spectacular ring system ...

"For the first time we can see the chemical cake while it's rising in the oven, instead of just the starting ingredients of ...