Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in direct exoplanet imaging. The planet, known as HD 143811 AB b, is the closest-in world ever ...

The interstellar object 3I/ATLAS has developed a distinct greenish glow as it makes its final high-speed passage through the ...

Astronomers tracking the interstellar comet known as 3I/ATLAS report that the object has brightened markedly and developed a faint green glow as it approaches its closest pass by Earth, sharpening ...

Interstellar comet 3I/ATLAS shows a growing green glow and new X-ray activity as scientists study changes in its chemistry during its rare passage through the Solar System ...

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system ...

Astronomers studying the interstellar comet known as 3I/ATLAS have detected a vast and unexpected X-ray halo extending ...

With solar wind conditions expected to intensify late Friday into Saturday, the Northern Lights may be visible in the U.S.

Comet Lemmon was discovered in January 2025 and made its closest approach to Earth in late October 2025. But by November 2025 ...

Interstellar object 3I/ATLAS is making its closest approach to Earth in just over a week from now, coming within 167 million ...

Researchers are stunned after new readings show 3I/ATLAS surrounded by a huge x-ray cloud stretching 250,000 miles.

This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...