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Category Archives: Astrophysics
Our Sky in 350,000,000,000 years
How did Hubble discover the expansion of the universe? Thank you to BetterHelp for sponsoring today’s video. Click here for 10% off your first month – https://betterhelp.com/physicsgirl Support Physics Girl videos → https://www.patreon.com/physicsgirl Creator/Host: Dianna Cowern Editor: Levi Butner Expanding … Continue reading
Venus Used To Be A Lot More Like Earth | Answers With Joe
[…] Venus has long been called Earth’s twin, because our sizes are so similar. But as we learned in the early 60s, on our surface we couldn’t be more different. This wasn’t always the case though. It’s thought that up … Continue reading
Most People Think the Big Bang Happened Here
Where is the universe expanding into? Where did the big bang happen? […]
Spacecraft launched on mission to smack space rock – BBC News
A spacecraft has launched on a mission to test technology that could one day tip a dangerous asteroid off course. Nasa’s Dart mission wants to see how difficult it would be to stop a huge space rock from colliding with … Continue reading
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
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
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? […]
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 […]
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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