Category Archives: Astronomy

Einstein’s special theory of relativity combines space and time into one dynamic, unified entity – spacetime. But if time is connected to space, could the universe be anything but deterministic? And does that mean that the future is predestined? Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the […]

Is all that exists just whatever exists right now? Is the past erased and the future a void yet to be filled? Well, the answer lies in between the past and the future – in the elusive, ever-moving eye-blink that we call the present. Sign Up on Patreon to get access to the Space Time […]

Check Out Overview of PBS Terra: https://bit.ly/33otrUn If you rank the most habitable places in our solar system Venus lands pretty low, with surface temperatures hot enough to melt lead and sulphuric acid rain. And yet it may have just jumped to the front of the pack. In fact, we may have detected the signature […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… Your extensive posting history on r/birdswitharms and your old fanfiction-heavy livejournal are both one tiny math problem away from […]

Take the PBS Digital Studios annual survey: http://to.pbs.org/2020survey One of the most bizarre proposals for life not as we know it doesn’t even use atoms. It proposes that fundamental kinks and defects in the fabric of the universe – cosmic strings beaded with magnetic monopoles – may evolve into complex structures, and even life, within […]

The great physicist Hermann Weyl once said: “My work always tried to unite the true with the beautiful, but when I had to choose one or the other, I usually chose the beautiful.” But is this actually good advice for doing physics? Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime […]

Thank you to Target for supporting PBS. You can learn more at https://target.com/community Share your story today: https://to.pbs.org/3izZeXh Pin-pricks in the celestial sphere, through which shines the light of heaven? Or gods and heroes looking down from their constellations? Or lights kindled above middle earth by Varda Elbereth and brightened with the dew of the […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… If you wanna make an omelet you gotta break a few eggs. And by omelet I mean a theory […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… Our galaxy is full of dysfunctional stellar relationships. With more than half of all stars existing in binary orbits, […]

The second in our two event series about Theories of Everything! Watch the first one: https://www.youtube.com/watch?v=_izocEgArtQ Please subscribe to Brian Keating’s YouTube Channel to watch one-on-one interviews with the guest speakers and more: https://www.youtube.com/DrBrianKeating Existing Theories of Everything have not yet produced experimental evidence that solves the fundamental challenges facing physics. That lack of progress […]

Join two epic livestreams about Theories of Everything! Sign up for prizes, a download link to the videos, and more at http://www.pbsspacetime.com/events. Please subscribe to Brian Keating’s YouTube Channel to watch one-on-one interviews with the guest speakers and more: https://www.youtube.com/DrBrianKeating July 28 @ 4pm Eastern (8pm UTC) – What is a Theory of Everything? Moderated […]

Join two epic livestreams about Theories of Everything! Sign up for prizes, a download link to the videos, and more at http://www.pbsspacetime.com/events. Check out our co-moderator Brian Keating’s incredible channel at: https://www.youtube.com/DrBrianKeating July 28 @ 4pm Eastern – What is a Theory of Everything? Moderated by Matt O’Dowd & Brian Keating ​Featuring Max Tegmark, Stephon […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime When we detected the very first gravitational wave, a new window was opened to the mysteries of the universe. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… The most precious substance in our universe is not gold, nor oil. It’s not even printer ink. It’s antimatter. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Black hole singularities break physics – fortunately, the universe seems to conspire to protect itself from their causality-destroying madness. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… Black holes are about the worst subjects for direct study in the universe. But at this stage, it’s all […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Conformal Cyclic Cosmology is a story of the origin and the end of our universe from great mathematical physicist […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime With the global pandemic of Covid 19 still encompassing the word, we are generally not big fans of viruses […]

It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds – but those secrets may be revealed by turning back to the Cavendish experiment. That steampunk contraption may even reveal the existence of extra […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspaceSign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime This is a map of the multiverse. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime As the 19th century came to a close, physicists were feeling pretty satisfied with the state of their science. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime The universe is precisely 13.8 billion year old – or so our best scientific methods tell us. But how […]

In today’s livestream you’ll be able to Ask Matt O’Dowd, a PhD in astrophysics, anything. Tune in to ask your own question or see some of the great questions our audience has for Matt! #space #astrophysics #astronomy

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… From Stargate to Interstellar, wormholes are our favorite method for traveling across fictional universes. But they are also a […]

Check out Antarctic Extremes on PBS Terra: https://www.youtube.com/pbsterra Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/space… Check out the Space Time Merch Store Home The Milky Way galaxy is relatively calm by the destructive standards […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home In astronomy we talk about billions of years like it’s no big deal. But how can we be sure about timescales so far beyond the capacity for human intuition? Our discovery of what we […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Normal maps are useless inside black holes. At the event horizon – the ultimate point of no return as you approach a black hole – time and space themselves change their character. We need […]

Thank you to World of Warships for supporting PBS, go to: http://go.thoughtleaders.io/1691420200309 and use the code: BATTLESTATIONS2020 to let them know we sent you. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home If there’s one thing cooler than a black hole it’s […]

Thank you for The Great Courses Plus for supporting PBS. To learn more click http://ow.ly/oSus30qpmwX Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home This episode of space time is brought to you by the information flowing through an impossibly complex network of […]

Check out Antarctic Extremes on PBS Terra: https://www.youtube.com/watch?v=EvRAuy1ZmTc Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home To quote eminent scientist Tyler Durden: “On a long enough timeline, the survival rate for everyone drops to zero.” Actually… not necessarily true. If the quantum […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Why is it that we can see these multiple histories play out on the quantum scale, and why do lose sight of them on our macroscopic scale? Many physicists believe that the answer lies […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home It’s not surprising that the profound weirdness of the quantum world has inspired some outlandish explanations – nor that these have strayed into the realm of what we might call mysticism. One particularly pervasive […]

For more information go to: nordvpn.com/spacetime and use the code: spacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home What does the strong nuclear force, the fundamental symmetries of nature, and a laundry detergent have in common? They’re all important parts of […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home If the universe goes on forever, does that mean there are infinite versions of you out there? Hosted by Matt O’Dowd Written by Matt O’Dowd Graphics by Leonardo Scholzer & Adriano Leal Post Production: […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ In particle physics we try to understand reality by looking for smaller and smaller building blocks. But what if that has been the wrong philosophy all along? Hosted by Matt O’Dowd Written by Matt […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home The three body problem is famous for being impossible to solve. But actually it’s been solved many times, and in ingenious ways. Some of those solutions are incredibly useful, and some are incredibly bizarre. […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Black holes are awesome – but how about black holes being captured by the screaming vortex of a quasar, where they merge and grow like some monstrous version of a solar system. This insane […]

Explore the Fermilab YT Channel here: https://www.youtube.com/user/fermilab Why is there something rather than nothing? Well the answer may be found in the weakest particle in the universe: the neutrino. For over half a century Fermilab has been the premier particle accelerator facility of the United States and we got to visit with Don Lincoln to […]

Watch our collaboration with @Fermilab right now, by downloading the PBS Video App. Space Time is taking the holidays off to rest, relax and fill our brains with more science for 2020. We’ll return to our regular release schedule on January 6th, but you can get your Space Time fix by downloading the PBS Video […]

Thanks to Brilliant for supporting PBS. Learn more at: https://brilliant.org/spacetime What if every single black hole that formed in our universe sparked the big bang of a new universe? Cosmological natural selection proposes exactly this – but even better, it claims to be able to test the hypothesis. Sign Up on Patreon to get access […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Since the dawn of humanity around 100 billion people have lived. How many will live in the future of our species? We might hope for a trillion times that if we colonize the galaxy. […]

Learn more at https://www.brilliant.org/spacetime The universe is big, really, really big. Although according to a new paper, it may literally be infinitely smaller than we previously thought. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Hosted by Matt O’Dowd Written by Matt […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home The moment you started observing reality, you hopelessly polluted any conclusions you might make about it. The anthropic principle guarantees that you are NOT seeing the universe in most typical state. But used correctly, […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Life exists in our universe. There we go – one hopefully uncontroversial statement. Therefore our universe is capable of producing and supporting life. How am I going? Two for two? Let’s try for three: […]

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store Home Why does it appear, that humanity is the lone intelligence in the universe? The answer might be that planet Earth is more unique than we’ve previously assumed. The rare earth hypothesis posits exactly this […]