Rare Interstellar Comet 3I/ATLAS Returns in November 2025: A Cosmic Spectacle Awaits
November 10, 2025
Big news from the skies! A rare cosmic visitor, the interstellar comet named 3I/ATLAS, is set to shine in the eastern sky before dawn on November 11, 2025. This comet thrills both scientists and space lovers because it comes from beyond our solar system — a true space traveler. It recently zipped past the Sun on October 30, getting as close as 130 million miles, a dance move called perihelion.
3I/ATLAS was discovered just a few months earlier on July 1, 2025, by the ATLAS telescope in Chile. It is only the third interstellar object known to visit us, after the mysterious ‘Oumuamua in 2017 and the comet 2I/Borisov in 2019. NASA confirmed this comet is on a hyperbolic orbit, which means it is speeding through and won’t come back. This is a once-in-a-lifetime show!
At the time of discovery, the comet was a blazing 130,000 mph fast, speeding up later to 152,000 mph as it neared the Sun. ESA’s Jupiter Icy Moons Explorer (JUICE) spacecraft is getting the best views, with early results expected by February 2026.
Right now, 3I/ATLAS is hiding behind the Sun and can’t be seen from Earth. But mark your calendars! On November 11, it will appear low in the eastern sky just before sunrise, near the Sagittarius constellation — the very direction it came from. It’s not bright enough to be seen with the naked eye. You’ll need a big telescope of at least 8 inches (20 cm) wide to spot this faint traveler.
Can't watch live? Don’t worry! NASA, ESA, and several universities are sharing live telescope feeds and sky maps online for all the space fans.
As 3I/ATLAS neared the Sun, its frozen gases started turning into gas directly, releasing dust and ice — creating a shimmering but faint tail. ESA’s spacecraft instruments are studying this material to learn what the comet is made of. Early clues point to frozen water, carbon compounds, and dust — typical comet stuff — but scientists are still curious about possible unusual elements.
The comet’s origin is mysterious. It likely came from a star system beyond the Milky Way’s central region. Harvard astrophysicist Avi Loeb once speculated it might be artificial but later said it’s “most likely natural,” though all ideas remain open.
Once 3I/ATLAS passes through our solar system, it will speed away into deep space forever, making this cosmic visit brief but incredibly special. ESA’s JUICE and NASA’s Europa Clipper missions are joining forces to gather data that could reveal secrets about how planets and solar systems form far away in the galaxy.
So, are you ready to look up and spot this cosmic superstar? Remember, big telescope in hand, eyes to the east before dawn on November 11, 2025!
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Tags:
3i/atlas
Interstellar comet
Space
Nasa
Esa
Astronomy
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