The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Called 3I/ATLAS, the comet is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

Searching for meaning in distant solar systems Is it better for a science writer to be technically correct or understood?

Earlier this week, NASA announced that its scientists had discovered a seven-planet solar system orbiting a star named TRAPPIST-1. While “Earth-sized” doesn’t necessarily mean “able to ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

Earth is the sixth planet from the edge of the solar system, meaning we're none too near this cold and inhospitable frontier. But we've sent out various spacecraft over the years, so do we have ...

NASA has launched Surya, its new heliophysics artificial intelligence foundation model to empower solar scientists with tools ...