Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...

Accessible to anyone the world over, witnessing the majesty of the solar system, including the Milky Way, and its billions of ...

Behold, the giants! The Hubble Space Telescope has completed a decade of observing Jupiter, Saturn, Uranus and Neptune.

From the northern lights ringing in the New Year to a spectacular meteor shower, January is shaping up to be an exciting ...

Mars: The Curiosity rover captured high-resolution images of the Martian landscape, including Mount Sharp and Gale Crater. Jupiter: The Juno spacecraft delivered detailed images of Jupiter's Great Red ...

2025 opens with the chance to spot upwards of six planets together in the night sky. According to the Farmer’s Almanac, ...

On the evening of Jan. 10, Venus will reach its greatest eastern elongation — its easternmost distance from the sun. This is ...

Keep your eyes on the sky this upcoming year for a chance to spot breathtaking meteor showers, a special view of Saturn and a ...

In the meantime, the space telescope is taking some absolutely stunning images of the cosmos, so we can feast our eyes while ...

Auroras are beautiful phenomena on Earth, but they aren't specific to this planet. In fact, they appear on many other planets ...

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

NASA is celebrating the holiday season by unveiling a stunning new image of a cosmic wreath. Located 200,000 light-years away in the Small Magellanic Cloud, star cluster NGC 602 blends data from ...