A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It was first discovered zipping near the sun this fall.

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

For the first time, the powerful telescope has discovered an exoplanet not previously known to scientists. Find out more here.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to oblivion ...

The search for life beyond our planet continues, and one of the most underappreciated tools in an astrobiologist's toolkit is ...