It’s doing a Sun run. Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest approach to the Sun on October 30. While ATLAS doesn’t ...

Editor’s note: This article is a lighthearted and educational exploration of orbital mechanics; no one is seriously proposing that we launch criminals—or anyone—into the Sun. Well, not that we’re ...

Isaac Asimov described the solar system as the sun, Jupiter, and debris. He wasn't wrong—the sun is 99.8 percent of the mass of the solar system. But what is that giant ball of fire in the sky? How ...