Comet 3I/ATLAS, discovered on July 1, 2025, is only the third known interstellar visitor to the solar system, following 1I/'Oumuamua in 2017 and 2I/Borisov in 2019.
Sources
- The Ten Most Significant Science Stories of 2025, From Medical ... (smithsonianmag.com)
- https://science.nasa.gov/solar-system/comets/3i-atlas/3i-atlas-facts-and-faqs/ (science.nasa.gov)
- https://about.ifa.hawaii.edu/research/3i/ (about.ifa.hawaii.edu)
- https://www.cbc.ca/lite/story/1.7575576 (cbc.ca)
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