Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...

The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

I/ATLAS, the interstellar object discovered in 2025, reveals the estimated population, composition, and distribution of ...

Interstellar comet 3I/ATLAS showed measurable water activity after passing the Sun, observed by SOHO’s SWAN instrument, ...

Scientists have been cataloging comet 3I/ATLAS’s journey through the Solar System since July, tracking major milestones as the rare interstellar visitor moves closer to Earth.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The Gemini North telescope in Hawai‘i captured the recently discovered interstellar object called ...

This animation shows the observations of comet 3I/ATLAS when it was discovered on July 1, 2025. The NASA-funded ATLAS survey telescope in Chile first reported that the comet originated from ...

I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system.Video above: Astronomers discover how planets formThe Hubble Telescope and its Wide Field ...

Learn how you can say farewell to comet 3I/ATLAS as it passes by Earth on Dec. 19, 2025, and what we have learned during its brief visit near Earth.