The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

A new type of exoplanet has been discovered: Enaiposha, also known as GJ 1214 b. Long heralded as a mini-Neptune, new observations have indicated that it is a member of a category never seen before ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...

But there are other, far less contentious ... It is not just within our Solar System that planet alignments are useful. Astronomers use alignments to probe many different aspects of the Universe ...

An object we thought belonged to the most common category of planet in the galaxy ... directly analogous to them here in our Solar System. Both super-Earths and mini-Neptunes are intriguing to ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Starting up again Saturday, a sweeping view of our solar system will glow in ... That means the Sun and the “Red Planet” are directly opposite from each other with Earth in the middle.