The shape of the universe is not something we often think about. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest ...

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

NASA’s pursuit of nuclear propulsion technology marks a monumental advancement in the realm of space exploration. By leveraging the power of nuclear rockets, the agency is poised to redefine how we ...

A blue Earth ascends over the barren surface of the moon, against the black void of space. This famous photograph, Earthrise, was taken on Christmas Eve of 1968, by Apollo 8 astronaut Bill Anders.

There may be no enterprise that lends itself so well to the camera as space travel. The universe is a riot of color and light—of galaxies and planets and brightly hued moons. The people who explore ...