Area 51 is a U.S. Air Force Base in Nevada, and has long been the subject of conspiracy theories stemming from the belief that the U.S. government keeps evidence of alien contact on site, including ...

American astrophysicist and science communicator Neil deGrasse Tyson, and English physicist, science communicator, and musician Professor Brian Cox have given the world their thoughts on interstellar ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

The NASA/ESA Hubble Space Telescope reobserved interstellar comet 3I/ATLAS on 30 November with its Wide Field Camera 3 instrument. At the time, the comet was about 286 million kilometers from Earth.

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.

The interstellar visitor, only the third such object to be discovered passing through our solar system, ignited controversial ...

WASHINGTON — NASA released fresh images on Wednesday of the interstellar object called 3I/ATLAS that astronomers have determined is a comet probably even older than our solar system, as space agency ...