The "alien mothership" hypothesis for interstellar comet 3I/ATLAS is about to have a key test, as it hits solar conjunction and perihelion. What does that mean, and why is a Harvard professor of ...

A scientist has recently posited that a mysterious interstellar object, potentially of extraterrestrial origin, appears to be dramatically decelerating, as if applying brakes. This intriguing ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

Astronomers are closely monitoring interstellar object 3I/ATLAS as it approaches its perihelion on 29 October—a critical moment that could test the controversial “alien mothership” hypothesis.

Late last year, astronomers detected the first known interstellar asteroid, dubbed ‘Oumuamua. New research suggests these exotic objects are more abundant than we thought, an observation that boosts ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A provocative latest essay by Harvard astrophysicist Avi Loeb has reignited debate over whether interstellar objects passing through our solar system could carry more than just dust and ice. In his ...

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James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...