What did Mark Twain have in common with Genghis Khan and William the Conqueror? And how is this all tied into a Christmas ...

What: Comet 3I/ATLAS reached perihelion on October 30, 2025. This special SETI Live explored what scientists have learned ...

Contrary to claims that 3I/ATLAS is no longer from Earth, space experts claim that the Manhattan-sized comet can now be captured by anyone with basic viewing equipment. Astronomer Yicheng Zhang ...

In a double cosmic treat and once-in-a-millennium opportunity, stargazers in October 2025 can look to the sky for two rare comets as they make a close approach to Earth — and Comet Lemmon and Comet ...

They’re battening down the heavenly hatches. A NASA-coordinated group has reportedly begun efforts to observe Comet 3I/ATLAS after it was seen emitting a never-before-seen alloy and exhibiting other ...

With OpenAI’s release of the ChatGPT Atlas web browser, we evaluated its reviews next to Perplexity’s Comet in the battle that’s reshaping how we use the web. OpenAI launched ChatGPT Atlas, a new ...

In a rare doublecosmic treat and once-in-a-millennium visit from an icy green comet, stargazers can look to the night sky through October 2025 to view Comet Lemmon and Comet SWAN, which will be ...

The Orionid meteor shower peaked overnight Monday into Tuesday, Oct. 20–21. But that wasn’t the only astronomical event lighting up the sky. In a rare double cosmic treat, stargazers this fall can ...

Two comets, Lemmon and SWAN, are visible in the night sky through October 2025. Comet Lemmon will appear green and is best viewed in the northwest sky after sunset. Comet SWAN is dimmer and best ...

A spectacular celestial display will soon be visible. The Orionid meteor shower, which is known to produce fireballs on occasion, is expected to peak overnight Wednesday, according to NASA. Recognized ...