Avi Loeb suggested that NASA may have rushed to conclusions by ruling out the possibility of an artificial aircraft.

Instead, scientists are looking into existing spacecraft already in orbit around other planets. Harvard Professor Avi Loeb ...

A senior Harvard astronomer has reignited speculation about the origins of a vast interstellar object hurtling through the ...

Avi Loeb, the chair of the astronomy department at Harvard, has suggested that a Manhattan-sized interstellar object, which ...

A Harvard physicist has asserted that new images of the Manhattan-sized interstellar object rocketing through our inner solar ...

Earlier this year, astronomers spotted a mysterious interstellar object, dubbed 3I/ATLAS, hurtling through the solar system ...

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

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

Harvard astronomy department chair Dr. Avi Loeb has suggested that a recently discovered, Manhattan-sized interstellar object ...

As evidence continues to mount that the mysterious object with interstellar origins currently speeding toward the inner solar ...

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