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Harvard Scientist Warns Interstellar Object May Collide with Mars
4 Sep
Summary
- Respected Harvard astrophysicist Avi Loeb's new theory about 3I/ATLAS
- Possibility of an unseen 'precursor mini-probe' traveling ahead of 3I/ATLAS
- 3I/ATLAS projected to pass within 18 million miles of Mars on October 3, 2025

According to a new theory by respected Harvard astrophysicist Avi Loeb, the mysterious interstellar object 3I/ATLAS, which has been widely accepted as a large, frozen comet, may actually be an extraterrestrial craft accompanied by an unseen 'precursor mini-probe'.
Loeb has pointed out several strange clues about 3I/ATLAS, including its unique flight path taking it near several planets, which could reveal it was artificially created. In his latest paper, Loeb theorizes that this mini-probe, smaller than 330 feet, could reach Mars around the same time as 3I/ATLAS's closest approach on October 3, 2025, possibly even a week earlier in late September.
Loeb argues that if anything from 3I/ATLAS does reach Mars, it would suggest the object is artificial, like a spacecraft or probe, rather than a natural comet. He explains that a small orbit correction of just 6.2 to 9.3 miles per second this month could put the mini-probe on a collision course with Mars, which would be easily achievable for the fast-moving 3I/ATLAS.
The astrophysicist has remained adamant that something about 3I/ATLAS does not add up, and his new theory suggests it may be a ship being accompanied by a small probe, potentially sent by an advanced civilization to explore or investigate Mars.