A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created ...

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

NASA’s Transiting Exoplanet Survey Satellite has once again surprised astronomers by tracking interstellar comet 3I/ATLAS, a ...

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

NASA’s IMAP spacecraft studies charged particles, energetic neutral atoms, and magnetic fields at the heliosphere’s boundaries, providing real-time space weather data for Earth and spacecraft.

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation. At a news conference, ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

CAPE CANAVERAL, Fla. (AP) — NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar system. Discovered over the summer, the comet ...

That’s the official word from NASA about an interstellar object known as 3I/ATLAS. The object, first identified by NASA’s Asteroid Terrestrial-impact Last Alert System in July, had scientists and 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 ...

CAPE CANAVERAL, Fla. — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as ...