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Telescope reveals a growing tail on the comet that's visiting from another star

Astronomers using the Gemini South telescope in Chile observed that Comet 3I/ATLAS's tail has grown, revealing increased activity and chemistry similar to Solar System comets, officials said.

  • Researchers used the Gemini Multi-Object Spectrograph in Chile to capture images of the interstellar comet 3I/ATLAS, only the third confirmed example after 1I/′Oumuamua and 2I/Borisov.
  • The images show a growing tail and coma of dust and gas around the comet as it speeds towards the sun, becoming more active as it passes through our solar system.
  • The observations provide scientific data on the comet's composition and chemistry, allowing insight into worlds beyond our solar system.
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Telescope reveals a growing tail on the comet that's visiting from another star

Telescope observations reveal a growing tail on the comet that's visiting from another star. Released Thursday, the pictures taken by the Gemini South telescope in Chile are the best yet of the recently discovered comet.

·United States
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As of September 5 (Vietnam time), the comet named 3I-Atlas from interstellar space is about 384 million km away from Earth and continues to move closer, according to the US National Aeronautics and Space Administration.

·Viet Nam
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New images have been released of the comet 3I/Atlas, which is visiting our solar system from interstellar space. The new measurements show that the object, which is traveling at great speed, is leaving an ever-increasing trail behind it, AP News reported.

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KRCG broke the news in Jefferson City, United States on Thursday, September 4, 2025.
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