The solar system is our cosmic neighborhood, made up of the sun and everything that orbits it — planets, moons, asteroids, comets, and even dust and gas. The order of the planets in the solar ...

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

The sun has produced stunning auroras on Earth in recent years as solar activity has peaked—but expect more in coming years ...

In contrast, some planets in our solar system have massively different tilts ... so the poles are either completely facing the sun, or not at all, meaning its seasons are intense: Summers are ...

New data from the James Webb Space Telescope suggests a planet in a faraway solar system was consumed by a star by hurling ...

The hypothesized planet’s orbit around the sun would likely take around 10,000 ... “Planet X” existed in the far reaches of the solar system. “It’s kind of fun that a paper that purports ...

The exoplanet 2M1510 (AB) b makes an unusual orbit around a pair of brown dwarfs, objects bigger than gas-giant planets but ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

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

To put that in perspective, this new planet at the outer rim of the solar system would be almost 20 times farther away from the sun than Pluto is. Pluto, which infamously lost its status as the ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...