Eight distant worlds hold secrets that still puzzle scientists and spark endless curiosity. Each moon offers a strange allure ...

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed ...

Have you ever wondered just how big space really is? It’s huge. In fact, it’s astronomical! The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on ...

NASA released new images of 3I/ATLAS, the third comet ever to be discovered in Earth's cosmic neighborhood originating from elsewhere in the universe.

It was first discovered on July 1, sparking fears of an alien invasion. Now, scientists have provided a chilling update on the mysterious 'interstellar object' racing through our solar system. Using ...

New measurements of an old rock show that the solar system may be up to 2 million years older than scientists previously thought. The new birth date could resolve a major controversy among geochemists ...

Voyager 1 was launched in September of 1977 - and now nearly 36 years later, it's on the cusp of being the first human-made object to ever leave our solar system. Scientists at NASA believe it's ...

Most potentially habitable exoplanets are at least hundreds of light-years away, but Wolf 1061c is just next door, galactically speaking. Eric Mack has been a CNET contributor since 2011. Eric and his ...