Astronomers say they spotted signs of a giant explosion releasing from a star beyond our solar system, one powerful enough to ...

NASA’s latest mission, designed to study the effects of the solar wind on the atmosphere of Mars, was ironically delayed on ...

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

A series of three powerful flares and associated explosions of solar material out across the Solar System have set Earth ...

Since the dawn of civilization, humanity has wondered whether we are alone in the universe. Some people—myself ...

Physicist Brian Cox dismisses alien claims about comet 3I/Atlas, calling it a natural interstellar relic and “a message from a dead world.” ...

As telescopes have become more powerful, it's turned out our solar system is not the only game in town: There are millions of ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's ...

While experts like Avi Loeb have raised intriguing possibilities, NASA confirms the definitive news: 3I/ATLAS poses 'no threat' to Earth.

An exoplanet is what we call planets that exist outside of our own solar system. The first one was discovered in 1992, but as we get more powerful and precise telescopes and instruments, scientists ...

Astronomers believe they have uncovered evidence of a previously unknown ninth planet lurking in the not-too-distant reaches of the solar system. This hypothetical world, dubbed "Planet Y," could be ...