Scientists are preparing for their best look at it yet.

The interstellar comet 3I/ATLAS is racing away from the sun. Hubble and JWST track the object's strange composition: high CO2 ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

The International Gemini Observatory caught a glowing glimpse of 3I/ATLAS while conducting a Shadow the Scientists session.

New telescope images show interstellar comet 3I/ATLAS brightening and turning green after solar heating, raising questions ...

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

He cited the astronomical gaffe in January, when The Minor Planet Center in Cambridge, Mass., announced the discovery of an ...

NASA’s Hubble Space Telescope captured a deeper look at interstellar comet 3I/ATLAS, with its Wide Field Camera 3 instrument, ...

New observations show the comet's two tails and rising activity.

Gemini North observations reveal interstellar comet 3I/ATLAS has brightened and developed a green coma after perihelion, ...