Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

They may not work well right now, but Perplexity’s Comet browser and ChatGPT’s Agent mode say a lot about where AI is headed ...

(Reuters) -Nvidia-backed Perplexity AI, the startup challenging Google with its AI-powered search engine, is in discussions ...

Mostly sunny, pleasant, and comfortable today. Highs around 80. Strong to marginally severe storms possible Saturday. Get the ...

A rare lunar occultation, fading crescent moon, and an interstellar visitor make for a memorable week of stargazing in ...