Category Archives: Astrophysics

The Planets Are Weirdly In Sync

[…] You can also discuss this video on REDDIT: https://stvmld.com/m4fnhvcw Orbital Resonance Incredibly, three of the four largest moons of Jupiter (Ganymede, Europa and Io) have orbital periods that are whole number ratios with each other (1:2:4). The big gap … Continue reading

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Why the Earth exists because of Saturn | Migration of Planets

[…] Did you know that the places where the planets formed in the solar system aren’t necessarily where they’ve ended up today? Planets can MIGRATE. And it’s that migration that throws the rest of the Solar System into a complete … Continue reading

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These Move Faster than the Speed of Light

How is it possible for galaxies and objects in space to move away from us faster than the speed of light? Will we ever see those objects? […]

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How Stars Freeze

[…] When you think of a frozen object in space, you might think of Pluto, but stars themselves actually freeze. Hosted By: Hank Green […]

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Length Contraction and Time Dilation | Special Relativity Ch. 5

[…] Mark Rober’s youtube channel: https://www.youtube.com/markrober This video is chapter 5 in my series on special relativity, and it covers how things that are moving (that is, moving relative to an inertial reference frame) at different speeds appear to be … Continue reading

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Strange Supernova That Was Started by a Black Hole Eating a Star

[…] Hello and welcome! My name is Anton and in this video, we will talk about a supernova caused by a colliding black hole Press release: https://www.caltech.edu/about/news/a-… https://public.nrao.edu/news/stellar-… Paper: https://www.science.org/doi/10.1126/s… […]

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What Is The Shape of Space? (ft. PhD Comics)

A collaboration with Jorge Cham and Daniel Whiteson, check out “We Have No Idea” at http://www.wehavenoidea.com Jorge’s PhDComics: http://www.phdcomics.com Numberphile video about sports in hyperbolic space: https://www.youtube.com/watch?v=u6Got… […]

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How does Hawking Radiation REALLY work?

[…] Nothing can escape black holes, yet somehow they can lose mass by emitting Hawking radiation?! To understand why, we’ll need to combine quantum field theory with general relativity. 00:00 Cold Open 00:33 Incorrect Explanation 02:22 What is a black … Continue reading

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How Does Gravity Warp the Flow of Time?

[…] There’s a deep connection between gravity and time – gravitational fields seem to slow the pace of time in what we call gravitational time dilation. And today we’ll explore the origin of this effect. And ultimately, we’ll use what … Continue reading

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How Big Is The Universe?

Is the Universe infinite? Or does it somehow fold in on itself? And if so in what shape? Join us today as explore the size of the Universe. Written and presented by Prof David Kipping, with special thanks to cosmologist … Continue reading

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