New evidence shows that, far beyond Pluto, there may exist a hypothetical planet referred to as Planet X or Planet Nine.

A cosmic monster shows up in our backyard and suddenly physics starts acting like it drank five espressos. Let’s explore how ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

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

The International Gemini Observatory caught a glowing glimpse of exocomet 3I/ATLAS which is the third confirmed object ever ...

Interstellar comet 3I/ATLAS is turning green and getting brighter as it nears Earth. Scientists track the ancient space rock, ...

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

A NASA spacecraft is making a close approach to the sun, repeating its record-breaking distance of 3.8 million miles from the ...

The Saint Paul, Minnesota, builder of community solar gardens has completed more than 75 projects since its 2012 founding, ...

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

It was back in July of this year that the Night Sky column first commented on the appearance of a strange object that had entered our solar ...

The comet was discovered by the ATLAS survey on July 1, 2025. Its non-native origin is confirmed by its hyperbolic path, ...