Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into Earth's cosmic neighborhood.

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a ...

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A new interstellar object in the solar system should be investigated for the possibility that it's an alien craft, according ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

Harvard astrophysicist Avi Loeb suggests a comet passing through the solar system may be an alien spacecraft, sparking debate among experts.

The strange 3I/ATLAS comet that was recently discovered to be speeding through our solar system could actually be the work of ...

Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

According to the official website of NASA, the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey ...