LONDON (IT BOLTWISE) – The interstellar comet 3I/ATLAS, the third of its kind, has reached its closest point to the sun and is now leaving our solar system. Scientists and space agencies are eagerly watching its journey as it moves away from Earth.
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The interstellar comet 3I/ATLAS, the third known visitor from interstellar space, recently reached its closest point to the sun and is now moving out of our solar system again. On October 29, 2025, the comet was at a distance of about 1.36 astronomical units from the Sun. This distance is approximately 1.36 times the distance between the Earth and the Sun. The closest approach to Earth is expected on December 19, 2025, when the comet will be about 1.8 astronomical units away.
Currently, 3I/ATLAS is not visible from Earth because it is located behind the Sun. However, starting November 11, 2025, it will again be visible to telescope observers in the eastern morning sky. To see the comet you need at least an 8-inch telescope. Despite its impressive journey, 3I/ATLAS will never be visible to the naked eye.
The European Space Agency (ESA) plans to observe the comet with its Jupiter Icy Moons Explorer (JUICE) mission between November 2 and 25, 2025. These observations could provide valuable insights into the comet’s activity after its closest approach to the Sun. However, the data is not expected to be available until February 2026.
The origin of 3I/ATLAS remains a mystery. Scientists have traced its orbit to identify possible source stars, but without success. The comet is believed to have come from the direction of the center of our Milky Way, but its exact origin remains unknown. These interstellar objects provide valuable insights into the formation and evolution of planetary systems.
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