An artist's rendering of two comets that will make a near-earth passes later this month. The first, known as SWAN, will pass ...

Strangely, I can't clearly picture the face of the surgeon who changed my family's life. I'm not sure I'd recognize him if I bumped into him in the street. And yet I can vividly recall his face ...

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can ...

This year, the October sky could offer a rare spectacle: two comets are expected to become visible simultaneously. The first, discovered recently, follows an extremely long orbit. The ...

A long-tailed comet named C/2025 R2 (SWAN) was first spotted near the sun on 12 September. NASA’s Solar Dynamics Observatory ...

It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower. Comet C/2025 R2 (SWAN), or SWAN R2 for short, was discovered on Sept. 12 by ...

Comet Lemon will be in the heart of the constellation Boötes, the Herdsman, as it makes its closest approach to Earth on Oct.

Comets Lemmon and SWAN are now becoming visible. Although they will get brighter next week, you can glimpse them now using ...

Comets Lemmon and SWAN are now becoming visible. Although they will get brighter next week, you can glimpse them now using ...

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...

Stargazers, here's a new one to add to your October view list. Two newly discovered comets, both sporting vibrant green hues, ...

Though it won't become any brighter, Comet SWAN will reach its closest point to Earth on Oct. 20, coming within 24 million ...