A comet called 3I/ATLAS is making its closest approach to the sun today (Wednesday October 29)—but is it really an alien spacecraft as one prominent scientist has speculated? If 3I/ATLAS was a ...

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 ...

A hype cycle as overwhelming and logic-defying as the AI boom comes with its own whirlwind succession of trends that are their own mini booms driven by billions of dollars of money. Once the world got ...

This photo taken on Oct. 20, 2025 shows the comet C/2025 A6 (Lemmon) and a meteor shower in the sky over Tongjiang City, northeast China's Heilongjiang Province. (Photo by Liu Wanping/Xinhua) This ...

Comet Lemmon (C/2023 A3) was observed streaking across the clear night skies of Hanle, Ladakh, by astrophotographers in India. The comet, with a faint green tail, is currently making its closest ...

Two comets, Lemmon and Swan, are visible in the October night sky. Comet Lemmon is making its closest approach to Earth on Oct. 21 and can be seen with the naked eye. For the best viewing, find a dark ...

Comet C/2025 R2 (SWAN) will make a close flyby of Earth on Oct. 21. A bright new solar system comet could put on a show in the October night sky as it zooms past Earth. Comet C/2025 R2 (SWAN) was ...

A comet discovered earlier this year, now just bright enough to be visible to the naked eye, is poised to be among the top celestial events of 2025. Known as C/2025 A6 (Lemmon), this celestial ...

A new comet was discovered last month. Now, as we go through this month, the comet may become easier to view. The new comet was discovered by a sky imaging instrument called SWAN. SWAN stands for ...

A comet traveling outside the solar system and heading toward the Earth is much larger than scientists first believed, a scientist has detailed in a new report. Avi Loeb claims the comet could even be ...