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"Each interstellar comet brings a little bit of its history, its fossils, from elsewhere."
A dramatic breakup near the sun erased hopes of a bright comet lighting up the evening sky this week.
This celestial wanderer is only the third confirmed interstellar visitor and potentially the oldest
By Ashley Strickland, CNN (CNN) — Astronomers using radio telescope observations to get an inside look at an interstellar comet have gleaned new insights into when and where the ce...
By Ashley Strickland, CNN (CNN) — Astronomers using radio telescope observations to get an inside look at an interstellar comet have gleaned new insights into when and where the ce...
The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.
Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever detected object to originate from outside our solar system...
We’re one comet down, and one to go for spring season 2026. We recently wrote about prospects for sungrazer C/2026 A1 MAPS and comet C/2025 R3 Pan-STARRS in April 2026. While the b...
A comet from beyond our solar system is giving astronomers a rare look at how alien planetary systems may form under conditions very different from those that shaped our own cosmic...
A rare celestial event is set to dazzle skywatchers this month as a once-in-170,000-years comet nears peak visibility.Comet C/2025 R3 (Pan-STARRS) is currently passing through the...
Comet C/2026 A1 (MAPS) belongs to a rare group of sungrazing comets.
If we're lucky, we'll soon have bright comets at both dawn and dusk. The post Dawn Comet C/2025 R3 (PanSTARRS) May Hold a Surprise appeared first on Sky & Telescope.
Amid a journey of celestial spectacles, the Artemis II astronauts may spot a comet—if it survives a dash past the sun
A new comet has arrived in our southern skies, but an astronomer warns the full moon might make it a "faint visitor" for now.
Spring meteor showers are back, though moonlight may dim one of the shows; astronomers watch a comet’s spin change in real time.
Over the next two weeks stargazers have a chance to spot the blue-green orb and smudgy tail of comet known as C/2025 R3 PanSTARRS A comet formed on the edges of the solar system wi...
Japan’s space agency, JAXA, has been knocking it out of the park with small-body exploration missions for decades. They had historic successes with both Hayabusa and Hayabusa2, and...
Known as C/2025 R3 PANSTARRS, the comet will be visible to stargazers using a telescope in New Zealand, Australia and South Africa.
Learn how Comet 3I/ATLAS began to emit methane as it approached the sun, releasing compounds contained within its inner layers.
A rare long-period comet returns after 170,000 years — here's how to find comet C/2025 R3 (Pan-STARRS) before sunrise this April, with key dates, viewing tips and the best mornings...
Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope coincidentally spotted this visitor from the stars over a week befor...
Halley’s comet debris will spark the Eta Aquarid meteor shower this week, though moonlight may dim the typically dazzling display.
A new analysis of data obtained by JWST on 3I/ATLAS as it was on its way out of the Solar System (in December 2025) showed that its interior is rich in methane ice.
The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach.
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