The speed of light is often cited as the fastest anything can travel in our universe.

What If The Speed of Light is Not Constant? Season 9 Episode 19 | 15m 5s One of the most fundamental physics facts is that the speed of light in a vacuum is constant for all observers.

A new documentary, "Deep Time History," takes a look at how key events such as the formation of the universe, exploding stars, clashing continents and evolution shaped the world as it is today.

Jeffrey Kluger October 17, 2019 at 12:43 PM TIME's Award-Winning Year in Space Documentary Is Now Available On Netflix ...

These are the best movies, TV shows, and documentaries about the space race and space exploration, from Apollo 13 to First Man to Hidden Figures.

As a technologically advanced successor to the Hubble Space Telescope, the James Webb Telescope is the largest, most complex off-Earth observatory in the world.

A new documentary takes viewers inside the International Space Station to experience a year in space alongside NASA astronaut Scott Kelly, who is just finishing his stay on the orbiting complex.

The space exploration documentary “It’s Quieter in the Twilight” has some of the right stuff. But for the average viewer, it may prove as slow-going as the last decade or so in the waning ...

TIME Studios has partnered with the studio division of Emmy & Peabody award-winning marketing firm Known to acquire the competitive documentary rights to Inspiration4, the first all-civilian ...

Support for a crowdfunded 'Space: 1999' documentary has already been off the charts, including series star Barbara Bain, original Eagle designer, Brian Johnson and astronaut Charlie Duke.