Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

The comet is fast approaching its closest encounter with Earth on Tuesday, March 21, a harmless 28.6 million miles.

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

Just how far can we see on a clear, dark night? If you're a regular reader of this column, you know that the stars overhead ...

Conditions are near-perfect to spot this celestial visitor, which won't appear again in our night sky for another millennium.

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

Comet C/2025 A6 Lemmon is getting brighter and whether you have a telescope, binoculars or just your eyes, here’s how you can ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Just after midnight, the moon will light up the east-northeastern horizon, cozying up right next to Jupiter. Here's how and ...