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

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

Baba Vanga predicted alien contact in 2025. Now, an interstellar object, 3I/ATLAS, is raising eyebrows—and fears. Harvard's ...

Baba Vanga predicted that aliens would make contact with Earth in 2025. A scientist has claimed that the interstellar object 3I/ATLAS moving towards the inner solar system is an alien mothership that ...

Irene Klotz is Senior Space Editor for Aviation Week, based in Cape Canaveral. Before joining Aviation Week in 2017, Irene spent 25 years as a wire service reporter covering human and robotic ...

From tracking a rare interstellar visitor to revealing hidden star systems, the SETI Institute is at the forefront of space science. Explore four recent stories showcasing our role in groundbreaking ...

The planetary defense system spotted something close to Neptune and researchers think it could be a piece of alien technology ...

A Harvard astronomer explained why an unidentified object detected this summer could potentially be an alien spacecraft. Avi ...

The appearance of a mysterious interstellar object has reignited debate over whether extraterrestrial technology could be ...

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 ...

This score means that it’s likely to have been engineered instead of being a naturally occurring force.

Scientists have uncovered microscopic clues buried deep in the ocean floor that could support a bold theory — a comet ...