Interstellar Objects
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Green Comet C/2024 E1 Brightens Near Mars as Scientists Forecast a Permanent Exit From the Solar System
Astronomers are closely tracking the bright green comet C/2024 E1 as it approaches Earth and prepares for a future escape from the solar system. Originating from the distant Oort Cloud, the city-sized comet is on a hyperbolic path and is expected to be permanently ejected after its close solar encounter, similar to the interstellar object 3I/ATLAS.
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NASA Scientists Observe 'Dramatic' Increase In Brightness Of Interstellar Comet 3I/ATLAS
SPHEREx detected a mix of molecules streaming off the comet, including water ice, carbon dioxide, and rocky material.
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NASA’s TESS Captures First Images of Rare Interstellar Comet 3I/ATLAS
NASA’s Transiting Exoplanet Survey Satellite has captured rare images of interstellar comet 3I/ATLAS, only the third such object ever detected. Observations from January 2026 reveal the comet rotates every 15 hours and produces sunlight-driven jets, behaving much like Solar System comets. Scientists say studying 3I/ATLAS may unlock clues about th...
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Rare Interstellar Object 3I/ATLAS Fails Alien Test, Scientists Say
The most sensitive radio search ever conducted on interstellar object 3I/ATLAS has found no signs of alien technology. Using the Green Bank Telescope, scientists scanned key radio bands during its closest approach to Earth. All detected signals were linked to interference, strengthening the view that 3I/ATLAS is a natural object.
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Biggest Space Discoveries in 2025: From New Comets and Black Holes to Sign of Life on Mars
The year 2025 proved extraordinary for astronomy, delivering discoveries that stretched from our cosmic backyard to distant galaxies. Scientists tracked Comet 3I/ATLAS, only the third known interstellar object, while nearby stars like Barnard’s Star and Alpha Centauri revealed new planetary companions. On Mars, strange “leopard spots” raised ...
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Interstellar Comet 3I/ATLAS Shows Rare Wobbling Jets in Sun-Facing Anti-Tail
Interstellar comet 3I/ATLAS reveals rare wobbling jets in its sun-facing anti-tail, stretching over 620,000 miles. Observed from July to September 2025, the jets indicate the comet’s icy core rotates once every 15.5 hours. As only the third interstellar object known, 3I/ATLAS provides unique insights into cometary behaviour and formation in dista...
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How 3I/ATLAS, Icy Lemmon And Cosmic SWAN Redefined The Sky In 2025
The year stood out for its memorable comet activity, with interstellar visitor 3I/ATLAS, along with comets C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), drawing global attention.
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Interstellar Comet 3I/ATLAS: NASA-Approved Answers To 10 FAQs
NASA mentioned that the Interstellar Comet 3I/ATLAS has been approaching from the general direction of the constellation Sagittarius.
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Interstellar Comet 3I/ATLAS to Make Closest Approach to Earth on December 19
Interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19, passing safely at a vast distance. Discovered by NASA-funded telescopes, the rare visitor offers scientists a valuable chance to study material formed around another star. Observations from space telescopes are expected to deepen understanding of interstellar objects.
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Interstellar Comet 3I/ATLAS Nears Earth on Dec. 19, Offering Rare Insights Into Cosmic Visitors
Interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Observing the comet provides scientists a rare opportunity to study dust and gases from its icy nucleus and learn more about material forming around other stars, expanding understanding of interstellar objects while posing no threat to our planet.
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Green Comet C/2024 E1 Brightens Near Mars as Scientists Forecast a Permanent Exit From the Solar System
Astronomers are closely tracking the bright green comet C/2024 E1 as it approaches Earth and prepares for a future escape from the solar system. Originating from the distant Oort Cloud, the city-sized comet is on a hyperbolic path and is expected to be permanently ejected after its close solar encounter, similar to the interstellar object 3I/ATLAS.
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NASA Scientists Observe 'Dramatic' Increase In Brightness Of Interstellar Comet 3I/ATLAS
SPHEREx detected a mix of molecules streaming off the comet, including water ice, carbon dioxide, and rocky material.
-
NASA’s TESS Captures First Images of Rare Interstellar Comet 3I/ATLAS
NASA’s Transiting Exoplanet Survey Satellite has captured rare images of interstellar comet 3I/ATLAS, only the third such object ever detected. Observations from January 2026 reveal the comet rotates every 15 hours and produces sunlight-driven jets, behaving much like Solar System comets. Scientists say studying 3I/ATLAS may unlock clues about th...
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Rare Interstellar Object 3I/ATLAS Fails Alien Test, Scientists Say
The most sensitive radio search ever conducted on interstellar object 3I/ATLAS has found no signs of alien technology. Using the Green Bank Telescope, scientists scanned key radio bands during its closest approach to Earth. All detected signals were linked to interference, strengthening the view that 3I/ATLAS is a natural object.
-
Biggest Space Discoveries in 2025: From New Comets and Black Holes to Sign of Life on Mars
The year 2025 proved extraordinary for astronomy, delivering discoveries that stretched from our cosmic backyard to distant galaxies. Scientists tracked Comet 3I/ATLAS, only the third known interstellar object, while nearby stars like Barnard’s Star and Alpha Centauri revealed new planetary companions. On Mars, strange “leopard spots” raised ...
-
Interstellar Comet 3I/ATLAS Shows Rare Wobbling Jets in Sun-Facing Anti-Tail
Interstellar comet 3I/ATLAS reveals rare wobbling jets in its sun-facing anti-tail, stretching over 620,000 miles. Observed from July to September 2025, the jets indicate the comet’s icy core rotates once every 15.5 hours. As only the third interstellar object known, 3I/ATLAS provides unique insights into cometary behaviour and formation in dista...
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How 3I/ATLAS, Icy Lemmon And Cosmic SWAN Redefined The Sky In 2025
The year stood out for its memorable comet activity, with interstellar visitor 3I/ATLAS, along with comets C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), drawing global attention.
-
Interstellar Comet 3I/ATLAS: NASA-Approved Answers To 10 FAQs
NASA mentioned that the Interstellar Comet 3I/ATLAS has been approaching from the general direction of the constellation Sagittarius.
-
Interstellar Comet 3I/ATLAS to Make Closest Approach to Earth on December 19
Interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19, passing safely at a vast distance. Discovered by NASA-funded telescopes, the rare visitor offers scientists a valuable chance to study material formed around another star. Observations from space telescopes are expected to deepen understanding of interstellar objects.
-
Interstellar Comet 3I/ATLAS Nears Earth on Dec. 19, Offering Rare Insights Into Cosmic Visitors
Interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Observing the comet provides scientists a rare opportunity to study dust and gases from its icy nucleus and learn more about material forming around other stars, expanding understanding of interstellar objects while posing no threat to our planet.
