Two ESA spacecraft, Hera and Europa Clipper, are poised to fly through the long tail of interstellar comet 3I/ATLAS, a new ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

Comet Lemmon was first discovered on Jan. 3, 2025, by the Mount Lemmon Survey near Tucson, Arizona, and will get closest to ...

ZDNET's key takeaways Perplexity is offering a referral program for its Comet browser Referrals must download Comet and ask a ...

The comets are visible in the northwest (Lemmon) and southwest (SWAN) about 90 minutes after sunset. Lemmon is moving quickly ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Bay Area ...

Comets Lemmon and SWAN are nearing Earth in a rare double cosmic treat. Where and what time can you see them? What to know.

Harvard scientist Avi Loeb warns that 3I/ATLAS could be an extraterrestrial “Trojan horse” whose presence has major ...

In a matter of days, Comet 3I/ATLAS will reach its closest point to the Sun. The third known interstellar object will reach ...

A NASA-backed planetary defense group has reportedly begun efforts to pinpoint comet 3I/ATLAS after it was observed emitting ...