The private space-race has been on for a while now.  The attention has been on Space-X and Blue Origin with their reusable rockets. But there’s one private space program that’s been doing things a little differently. Richard Branson’s Virgin Galactic isn’t building rockets at all – it’s building spaceships. And I got to sit down and talk to him about it. Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Check out Sound Field: http://youtube.com/soundfieldpbs Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Thanks to Matthias Rüby for on-site camera work. https://www.instagram.com/matthiasrueby/ Guest AuthorAll Guest…

We live in a universe with 3 dimensions of space and one of time. Up, down, left, right, forward, back, past, future. 3+1 dimensions. Or so our primitive Pleistocene-evolved brains find it useful to believe. And we cling to this intuition, even as physics shows us that this view of reality may be only a very narrow perception. One of the most startling possibilities is that our 3+1 dimensional universe may better be described as resulting from a spacetime one dimension lower – like a hologram projected from a surface infinitely far away. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Need a…

How did life on Earth get started? Did life on Earth originate on another planet? Either Mars, or in a distant solar system? Could Earth life have spread to have seeded life elsewhere? Let’s see what modern science has to say about the plausibility of panspermia. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

With the large hadron collider running out of places to look for clues to a deeper theory of physics, we need a bigger particle accelerator. We have one – the galaxy. Watch Two Cents here! https://www.youtube.com/channel/UCL8w… You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Physics is currently in a weird place. Historically, no matter how crazy our theories got, there were always new ways to test them. Does your theory predict a new particle? Build a particle accelerator big enough to see it. But…

Some see string theory as the one great hope for a theory of everything – that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

Let me tell you a story about virtual particles. It may or may not be true. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

The silence of the galaxy and the resulting Fermi Paradox has perplexed us for nearly 50 years. But our most recent surveys of the Milky Way finally allow us to draw scientific conclusions about the depressingly persistent absence of aliens. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE You can learn more about CuriosityStream at https://curiositystream.com/spacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a…

Why strings? What are they made of? How did physicists even come up with this bizarre idea?  And what’s all this nonsense of extra dimensions? You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Physics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE There’s quite a bit of stuff in the universe, to put it mildly. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website