SciShow
A Big Bang Beginner’s Guide | Compilation
While there's still a lot that astrophysicists don't know about the Big Bang, there are some things we do know. So today, let's get caught up on the Big Bang basics.
SciShow
How We Solved the Mystery of Pulsating Auroras
Astronomers have finally observed what causes pulsating auroras, and our estimates of the mass of the Andromeda Galaxy have shrunk.
TED Talks
TED: A stellar history of modern astronomy | Emily Levesque
Astronomers once gazed upon the night sky and counted every star in the galaxy by hand. The process has evolved since then, but the thirst for celestial knowledge remains the same. Join astrophysicist Emily Levesque for an anecdote-rich...
SciShow
Where Did the Big Bang Happen?
The name “The Big Bang” makes it sound like there was a big explosion in one particular spot, but if that’s the case, where did it happen?
Crash Course
The Big Bang, Cosmology part 1
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the...
Crash Course
Galaxies, part 2
Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist in smaller groups and larger clusters. Our Milky Way is part of the Local...
Curated Video
Scale of the Universe
How big is our Universe? Travel from Earth through the Solar System, past our Galaxy, to the Universe beyond. Physics - Universe - Learning Points. The Universe is constantly expanding. The Universe is already billions of light years...
Science ABC
Why We Can See 'Distant' Galaxies But Not 'Nearby' Planets?
We can see far-off galaxies, despite how far away they are, for two main reasons: 1 – Galaxies are huge 2 – Galaxies are bright Although galaxies are really far away from our planet (and solar system), they are undeniably massive. Our...
Curated Video
Quantum Entanglement: Explained in REALLY SIMPLE Words
Quantum entanglement is a physical resource, like energy, that is possible between quantum systems. When a coin spins on a flat surface, it’s in a state of superposition between its two faces—head and tails. Similarly, electrons in their...
Curated Video
Understanding the Hertzsprung Russell Diagram and Star Brightness
This video is a lecture on the Hertzsprung Russell diagram, which is used to understand the brightness and temperature of stars. The narrator explains the classification system of apparent magnitude and how it is used to compare the...
Curated Video
Telescopes: Time Machines into the Distant Past
This video explains how telescopes can act as time machines, allowing us to see objects in space as they appeared millions of years ago. By measuring distances in light years and understanding the speed of light, scientists can observe...
Curated Video
Exploring the Past: The Fascinating Concept of Light Years
In this video, we explore the concept of how telescopes allow us to see objects that are light years away, giving us a glimpse into the past. By understanding how light reflects off objects and travels to our eyes, we can comprehend how...
Getty Images
Night sky traveling trough universe filled with stars, nebulae and galaxies
Night sky traveling trough universe filled with stars, nebulae and galaxies
Getty Images
Night sky traveling trough universe filled with stars, nebulae and galaxies
Night sky traveling trough universe filled with stars, nebulae and galaxies
Getty Images
Night sky traveling trough universe filled with stars, nebulae and galaxies
Night sky traveling trough universe filled with stars, nebulae and galaxies
Getty Images
Night sky traveling trough universe filled with stars, nebulae and galaxies
Night sky traveling trough universe filled with stars, nebulae and galaxies
Getty Images
Animated Galaxy - Camera Through Cloud
Animated CGI representation of a Galaxy, with the camera dropping down to the side of the Galaxy itself. Unique sequence based on large research & R&D on galaxy distribution methods. 100% computer generated with no source reference imagery.
Khan Academy
Khan Academy: Quasars and Galactive Collisions: Galactic Collisions
Collision of the Milky Way Galaxy with Andromeda (forming "Milkomeda") is featured in this video. [3:34]