Astronomy

Want to ask some sort of crazy question about Space?: 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 us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Let us know what topics you want to learn more about: http://bit.ly/spacetimepoll General Relativity! Spacetime! And… Curved Lines? On this week’s
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Paul Dirac’s insights into the nature of Quantum Mechanics laid the foundation for Quantum Field Theory and predicted the existence of anti-matter. Part 1 in our series on Quantum Field Theory. Try Skillshare at http://skl.sh/spacetime You can
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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
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Have you ever asked “what is beyond the edge of the universe?” And have you ever been told that an infinite universe that has no edge? You were told wrong. In a sense. We can define a boundary to an infinite universe, at least mathematically. And it turns out that boundary may be as real
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Get 15% off your next purchase at https://www.legalzoom.com/spacetime. LegalZoom is not a law firm or a substitute for the advice of an attorney. Can humanity survive on one of the seven earth-like Trappist-1 planets? And be sure
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Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be
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You can learn more about CuriosityStream at https://curiositystream.com/spacetime Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime See Matt in NYC at Caveat March 7th at 9pm: https://www.caveat.nyc/event/astronaut-training-a-space-camp-game-show-for-lunatics-3-7-2019 Bad ideas come and go in physics. But there’s one bit of nonsense that is perhaps more persistent than all others:
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What time is it??? …And be sure to pre-order a Space Time t-shirt: http://dftba.com/spacetime Rules: please give an explanation for your answer! Also, if you give an answer in the comments here you’ll be disqualified. 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 us on Patreon! http://www.patreon.com/pbsspacetime
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You can learn more about CuriosityStream at https://curiositystream.com/spacetime Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime Hook up an old antenna to your TV and scan between channels. The static buzz you hear is mostly due to the ambient radio produced by our noisy pre-galactic civilization. But around
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Learn about Horizon radiation and why it’s essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space
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You can check out Google’s Science Journal app at http://g.co/ScienceJournal Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime Email your answers to: pbsspacetime@gmail.com With the subject heading: Negative Mass Challenge Question Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Thanks to The Great Courses Plus for sponsoring this episode of Space Time. Try a 30 day trial of The Great Course Plus at http://ow.ly/m8ms306GoxP. Quasars … the most metal thing in the universe. Support us on
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Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime Email your answers to: pbsspacetime@gmail.com With the subject heading: Negative Mass Challenge Question Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples? The answer? Priceless. Because you could use negative-mass apples
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Check out the new Space Time Merch Store! Home Support Space Time on Patreon https://www.patreon.com/pbsspacetime The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented precision. The only problem is
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Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in charge, handedness, and the direction of time. But one by
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Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Astronomers are the worst at naming things. Dark energy AND dark matter? Who can remember which is which. But perhaps one astronomer has just fixed it, with a theory that says perhaps actually they are they same stuff. Space Time
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To learn to think like a scientist check out http://Brilliant.org/SpaceTime Check out the new Space Time Merch Store! https://pbsspacetime.com/ When you look in mirror, and see what you think is a perfect reflection. You might be looking at universe whose laws are fundamentally different. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Tweet at
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Are aliens watching Earth TV? We’d like to credit the SKA Organization for the image used in the thumbnail. Support us on Patreon! https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook:
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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_A8p8P1HWI3k6PR5Z6w 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
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE You can learn more about The Great Courses Plus here: http://ow.ly/3qDN30hIvdb 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
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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 Help translate our videos! https://www.youtube.com/timedtext_cs_… Previous Episode:
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