The Solar System feels familiar because we grew up learning its names. In reality, it is vast, unstable, and indifferent. Planets collide, orbits shift, and scale overwhelms human intuition. These ...

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...

Meet the surprising, oddball worlds moving around our solar system. From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. 2023 KQ14, nicknamed “Ammonite,” is a trans-Neptunian object ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

This cosmic visitor is now officially named 3I/ATLAS, and it appears to be a comet from another solar system. Reading time 3 minutes Update: July 3, 09:24 a.m. ET: On Wednesday, July 2, the ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

There’s a giant ball of ice barreling through the solar system right now, and it’s bigger than any we’ve seen before. It poses no threat to Earth, but this comet, called C/2014 UN271 ...