I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

On June 26, more than 200 people reported seeing a fireball flash through the daytime sky over the southeastern United States. Others simply heard it—the meteor generated a sonic boom that several ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien technology, a scientist claims in a new report.

Would you guess that the Earth is spinning at 1,000 mph around its axis and at the same time hurtling through space on its ...

The Hubble Space Telescope has captured a stunning image of a high-speed comet traveling through our solar system. Scientists say the comet poses no danger to the Earth, and Hubble’s observations will ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

For nearly five decades, NASA's twin Voyager probes have plumbed the cosmos in search of answers to some of astronomy's most perplexing mysteries about our solar system and its place in the wider ...

The new Vera C. Rubin Observatory captured a video of Comet 3I/ATLAS zipping through space during its testing phase. Credit: RubinObs / NOIRLab / SLAC / NSF / DOE / X screenshot A new telescope built ...

It started with a hunch. Or more accurately, a glow. Scientists using NASA’s James Webb Space Telescope were combing through the deep sky, same as they’ve done dozens of times, when something odd lit ...