Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth’s sun. They left behind a trace in the clouds of gas and dust that swirl just beyond our solar system—almost ...

Comet 3I/ATLAS has fascinated astronomers and space enthusiasts worldwide as it makes its rare journey through our solar system, captivating researchers with its mysterious origin and ancient makeup.

Astronomers have discovered an ancient, ice-rich interstellar object called 3I/ATLAS, which could transform our understanding of how comets form and evolve across the galaxy. Detected by the ...

CC0 Usage Conditions ApplyClick for more information. Have you ever wondered if there is life on another planet? Exoplanets may hold the key to this question. They’re planets that orbit stars beyond ...

Add Yahoo as a preferred source to see more of our stories on Google. A mysterious visitor from beyond our solar system is making a rare appearance: Comet 3i/ATLAS is an interstellar comet, traveling ...

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an object that came from beyond our solar system. By Kenneth Chang Month-old ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar system—and it's an absolute giant. Reading time 3 minutes In September, NASA ...