Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

In 2020, astronomers detected WD 1856+534 b, a gas giant that orbits a star 81 light-years from Earth. This exoplanet, which ...

Astronomers using the James Webb Space Telescope have directly detected the faint glow of a planet that’s colder than any ...

Since Eos is so close to the solar system, the discovery could help scientists more closely study the early stages of how stars and planets form. The vast cloud of hydrogen, which is shaped like a ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

Saturn orbits the Sun at roughly 9.69 km/s, maintaining its grand system of rings as it cruises through space. Uranus moves at about 6.81 km/s, spinning on its unique sideways axis as it orbits ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...