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PBS Space Time

Season 2016 · Episode 48

Have They Seen Us?

0.018mDecember 21, 2016

Are aliens watching Earth TV? We'd like to credit the SKA Organization for the image used in the thumbnail.

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Episode 1The True Nature of Matter and Mass
Episode 2When Time Breaks Down
Episode 3The Photon Clock Challenge
Episode 4The Origin of Matter and Time
Episode 5Will Mars or Venus Kill You First?
Episode 6LIGO's First Detection of Gravitational Waves!
Episode 7Planet X Discovered?? + Challenge Winners!
Episode 8Why the Big Bang Definitely Happened

Episode 9What's Wrong With the Big Bang Theory?

Episode 10Cosmic Microwave Background Challenge

Episode 11Why is the Earth Round and the Milky Way Flat?

Episode 12How Cosmic Inflation Flattened the Universe

Episode 13Pulsar Starquakes Make Fast Radio Bursts? + Challenge Winners!

Episode 14We Are Star Stuff

Episode 15Will the Universe Expand Forever?

Episode 16Why the Universe Needs Dark Energy

Episode 17What Does Dark Energy Really Do?

Episode 18Will Starshot's Insterstellar Journey Succeed?

Episode 19The Cosmic Conspiracy of Dark Energy Challenge Question

Episode 20Anti-gravity and the True Nature of Dark Energy

Episode 21Is an Ice Age Coming?

Episode 22Is Quantum Tunneling Faster than Light?

Episode 23New Fundamental Particle Discovered?? + Challenge Winners!

Episode 24The Strange Universe of Gravitational Lensing

Episode 25Planck's Constant and The Origin of Quantum Mechanics

Episode 26Nuclear Physics Challenge

Episode 27Juno to Reveal Jupiter's Violent Past

Episode 28The Future of Gravitational Waves

Episode 29The Quantum Experiment that Broke Reality

Episode 30Can We Survive the Destruction of the Earth? ft. Neal Stephenson

Episode 31How the Quantum Eraser Rewrites the Past

Episode 32Quantum Eraser Lottery Challenge

Episode 33Should We Build a Dyson Sphere?

Episode 34Is There a Fifth Fundamental Force? + Quantum Eraser Answer

Episode 35Self-Replicating Robots and Galactic Domination

Episode 36Quantum Entanglement and the Great Bohr-Einstein Debate

Episode 37Life on Europa?

Episode 38Are We Alone? Galactic Civilization Challenge

Episode 39Black Holes from the Dawn of Time

Episode 40The First Humans on Mars

Episode 41The Many Worlds of the Quantum Multiverse

Episode 42Quantum Vortices and Superconductivity + Challenge Answers

Episode 43Did Dark Energy Just Disappear?

Episode 44Strange Stars

Episode 45Pilot Wave Theory and Quantum Realism

Episode 46What Happens at the Event Horizon?

Episode 47Escape The Kugelblitz Challenge

Episode 48Have They Seen Us?