Interstellar comet 3I/ATLAS, once claimed to be an alien spacecraft, may be 7 billion years old |
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June 19, 2026
When the ATLAS survey telescope in Chile discovered interstellar comet 3I/ATLAS on July 1, 2025, it quickly attracted attention because it was not just the third known object outside the solar system. Some researchers, including Harvard astrophysicist…
NASA’s James Webb Space Telescope detects methane hidden deep in interstellar comet 3I/ATLAS, which is unusually rich in carbon dioxide |
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June 3, 2026
Views from NASA’s James Webb Space Telescope throw the familiar categories of comet science into something awkward. 3I/ATLAS, an interstellar object that transited only briefly through the solar system, has been observed before, but this reading…
NASA’s SPHEREx mission observes interstellar comet 3I/ATLAS brightening in a surprising solar outburst |
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February 12, 2026
Comets usually disappear quietly after passing by the sun. Interstellar comet 3I/ATLAS did not follow the same path. Instead, it burned dramatically as it began to exit the solar system. NASA’s SPHEREx space telescope captured the burst in December…