Did you ever ask yourself why the sun is bright yellow during the day and why the moon glows white at night? Well, there is ...

The large golden aura is formed from the incoming light reflected off the sun-side of the occulter, a device that blocks the ...

NASA's PUNCH mission, a tiny constellation of four satellites, captured a photo of the moon drifting across the sky through a ...

A newly discovered house-size asteroid is set to make a close, yet harmless approach to Earth today (May 21), passing within ...

The photograph of the Earth taken from lunar orbit, sometimes known as “Earthrise”, is one of the most famous ever taken. However, while its beauty is widely agreed on, it gives little sense ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. May’s full moon ...

Building a sustainable economy on the moon won't be easy, but we at least have some ideas about how to get started.

Elon Musk is taking the long view. The billionaire SpaceX founder has long said that humanity needs to expand its footprint ...