Is 3I/ATLAS just a comet — or an intergalactic ark? A NASA spacecraft has discovered organic chemicals on 3I/ATLAS, which ...

What can be known when a comet which never was of the Sun, crosses the instrumented surface of the Solar System, momentarily?

Observations of interstellar object 3I/ATLAS show increased water, carbon dioxide, and organic gas release after its passage near the Sun, based on data from NASA’s SPHEREx mission ...

NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.

NASA's SPHEREx space telescope detected organic molecules coming off comet 3I/ATLAS as the interstellar visitor made its closest approach to Earth in December.

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

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

The latest data from the Webb telescope (reported here) indicates that the plume of gas and dust surrounding 3I/ATLAS contains water (H₂O), carbon dioxide (CO₂), carbon monoxide (CO) and methane (CH₄) ...

NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects ...

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 SPHEREx mission observed infrared emissions from interstellar comet 3I/ATLAS, documenting changes in dust, gas, and molecular activity after perihelion.