The quartet of planets — named b, c, d and e — are some of the smallest rocky worlds ever detected. NASA says each has a mass ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

Much like the northern and southern lights on Earth, auroras occur when charged solar particles collide with a planet’s ...

Does it rain diamonds on Neptune and Uranus? Scientists uncover how extreme pressure and temperature deep inside these ice giants create a continuous diamond rain.

Scientists think the Oort Cloud is a giant spherical shell surrounding the Sun, planets and Kuiper Belt Objects. It’s like a big, thick bubble around our solar system, made of icy, comet-like objects.

Using advanced simulations, the researchers propose that these planets emerge from distinct rings of planetesimals, providing fresh insight into planetary evolution beyond our solar system.

The gas giant planets of our solar system have many moons, which are defined as objects that orbit around planets or other bodies that are not stars. Jupiter has 95 known moons, Uranus 28 ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to ... Barnard's Star is our cosmic neighbor ...

The most surprising discovery of this new map was the appearance of an interstellar tunnel from our solar system pointing towards the constellation Centaurus. Hot gas escapes via this ...

our solar system came from that direction!” During that galactic encounter, Earth would have been exposed to extra amounts of dust. The scientists propose that such material may have penetrated the ...

"Planetary-mass objects don't fit neatly into existing categories of stars or planets." Are they stars? Are they planets? Or are they neither? Some rogue planetary mass objects that wander the ...

New research suggests that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three separate bodies orbiting one another in a complex triad. This rare ...