A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, ...

For centuries, humans have dreamed about finding a new home among the stars. Earth is the only planet we know that supports ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Officials search for missing Franklin County, Va., woman last reportedly seen in Nashville The Franklin County Sheriff's Office is asking the community for help in finding a missing woman. 4 boaters ...

(CNN) – Astronomers have discovered a rare family of six planets about 100 light years from Earth. The exo-planets are larger than the Earth but smaller than Neptune. The planets are in a ...

Our definition of a planet has changed over the years — causing a bit of confusion. | Credit: wasan prunglampoo/Getty Images Over the past 250 years, the number of "planets" in our solar system has ...