Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 ...

Earth is not a still point in space, but a planet hurtling through the cosmos at incredible speeds. This video breaks down the complex layers of our motion: the 66,000 mph orbit around the sun, the ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

NORFOLK, Va. — Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to ...

Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. But ...

Have you ever wondered why all the planets in our solar system orbit the Sun in roughly the same flat plane? This fascinating phenomenon isn’t a coincidence but a direct result of how our solar system ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This artist’s concept shows what the gas giant orbiting ...

Earth has adopted a new(ish) traveling companion. It’s a tiny asteroid with quasi-moon status, named 2025 PN7 by astronomers. Not to be mistaken with a mini-moon, the celestial object follows an orbit ...

Right now, as a passenger on planet Earth, you’re zooming through space at incredible speeds. But why can't you feel it?

Right angle Illustration of 2M1510 showing the orbits of the two brown dwarfs (in blue) and that of the planet (in orange). (Courtesy: ESO/L Calçada) The first strong evidence for an exoplanet with an ...

Deep within a swirling disk of gas and dust around the star HD 135344B, a young planet appears to be sculpting intricate spiral arms around its stellar host. It is the first time a planet has been ...