NASA’s TESS tracked the interstellar comet during a special observation period from January 15 to 22, 2026.

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

NASA’s latest tracking data show that interstellar comet 3I/ATLAS is not just racing through the solar system, it is accelerating in a way that standard gravitational models struggle to explain. The ...

NASA’s TESS spacecraft tracked interstellar comet 3I/ATLAS in January, capturing data on its motion, brightness, and rotation before it left the solar system ...

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

All eyes have been on the nearly 5-6 km long exocomet, including NASA’s Transiting Exoplanet Survey Satellite, aka TESS.

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

There's no telling what will gain traction on social media, but one conspiracy theory has gained enough traction for NASA to make a statement.

The comet originated from outside our solar system and poses no danger to our planet. NASA officials have rejected theories that the object could be an alien spaceship. While not visible to the naked ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and become the source of bizarre alien spaceship conspiracies – as it ...