The next full moon over Mississippi rises April 12. Know when to find dark skies to watch the Lyrids meteor shower this month, when to see more planets.

"We can chart a course for Mars in line with the president's vision to return to the moon before the Chinese can get there ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

Watch out for this weekend's full moon that's a little dimmer, a little smaller — and steeped in seasonal lore.

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

It would be nearly impossible to make the Earth as inhospitable to life as the planet Mars — not that we aren’t trying. And ...

Thanks to the Hubble Space Telescope, we now know that a day on Uranus lasts for 28 seconds longer than previously thought - ...

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

The space rock is expected to zoom past our planet today at a speed of around 45,991 miles per hour, according to NASA.

Scientists have discovered four new Earth-like rocky planets orbiting Barnard's Star, just six light-years away. Using ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet detected using the radial velocity method.