Space elevators? Nuclear rockets? The future of space travel could look radically different. Imagine taking an elevator to space. Or blasting off in a nuclear rocket. That might sound like science ...

(This program is no longer available for online streaming.) "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. Produced in ...

To understand gravity, Einstein had to rethink space and time as a single connected fabric. He showed that mass bends this fabric, guiding how everything moves. NOVA is available to stream on pbs.org ...

This ‘NOVA’ installment explores the possible purposes of strange stone formations found in the Arabian Peninsula.

(This video is no longer available for streaming.) It costs about $500 million to take the space shuttle out for a spin. But what if there was another way to get to space? And what if that way were as ...

CC0 Usage Conditions ApplyClick for more information. This new PBS Newshour video takes a look at a new exhibit at the Air and Space Museum celebrating NASA's space art program.

If extraterrestrials were visiting Earth, it would be the biggest news event since the Big Bang. So the seemingly endless speculation, obsession and recycling of stories about unexplained objects in ...