The second object that strayed from another solar system to ours was 21/Borisov. It was discovered in 2019 and is believed to ...

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

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

Loeb has developed what he calls the 'Loeb Scale', a ranking system to evaluate the likelihood that an object is artificial, ...

Yet NASA - and other experts - do not share his concerns and maintain 3I/ATLAS is simply an interstellar comet, thought to be around 7 miles (11.2 kilometers) wide. The US space agency has been ...

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

A Harvard astrophysicist has suggested that a newly discovered comet passing through our solar system might be an alien spacecraft in disguise. The claim by Professor Avi Loeb has split opinion in the ...

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

Since 2017, three interstellar objects have been spotted passing through our solar system: 1I/ʻOumuamua, 2I/Borisov… and just ...

Sending the Juno spacecraft to investigate a newly-discovered interstellar object that a professor suggested could be “alien ...

British scientist Stephen Hawking was publicly adverse to sending messages into space to attract aliens, with comments ...

Harvard Professor Dr. Avi Loeb discussed a new interstellar object called 3I/Atlas, which he thinks might be a form of alien technology. Loeb noted that the object's unique path and unusual ...