A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Billionaire and Microsoft co-founder Bill Gates argued that science and innovation are the keys to saving the planet ...

The growth spurt hints that the free-floating object evolves like a star, providing clues about rogue planets’ mysterious origins.

The surface of our planet is a true geological theater where a permanent spectacle of movements and transformations takes place. These impressive phenomena result from plate tectonics, a ...

Astronomers have uncovered a runaway feeding frenzy in a rogue planet drifting freely through space, devouring six billion ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

In “Citizen Science in Astronomy (Part 7),” SETI Institute astronomers Dr. Franck Marchis and Dr. Lauren Sgro highlight two rare and compelling discoveries and the crucial role of citizen scientists ...

On Monday (Oct. 6), the nonprofit Planetary Society held a "day of action" to urge Congress to restore NASA's science funding ...

Explore the fascinating worlds of Planetary Science and Geophysics, uncovering mysteries of the cosmos and Earth's processes.