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An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...

A newly discovered comet, C/2025 R3 (PanSTARRS), is set to pass by Earth this week. The comet will make its closest approach to Earth on April 27, coming within 44 million miles. It may be visible to ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

In my lifetime, I have seen a few spectacular comets, starting with Halley’s Comet in 1987. Ten years later, it was Hale-Bopp Comet which blessed our skies for nearly 18 months. More recently (2020), ...

Viewing conditions improve this week, thanks to darker skies as the moon wanes following the last quarter phase on April 10 Getty Comet C/2025 R3 (Pan-STARRS) orbits the sun every 170,000 years, ...

Astronomers caught a comet in the act of reversing its spin. Using NASA’s Hubble Space Telescope, scientists noticed the never-before-seen behavior of Comet 41P/Tuttle-Giacobini-Kresák (41P to its ...

Perplexity today expanded its Comet browser to iOS, making its AI Comet Assistant available to iPhone users. The Comet browser for iOS has many of the same features as the Comet browser for the ...

The unusual event, never seen before, might be a way small comets are “blown to bits” in the solar system. By Jonathan O’Callaghan If you were standing on the surface of Comet ...

The interstellar comet 3I/ATLAS is set to make its closest approach to Earth in December. 3I/ATLAS is the third-ever discovered object confirmed to have originated from outside our solar system. While ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A rapid surge in the brightness of interstellar comet 3I/ATLAS as it ...