Maybe you'd like to just hear about one topic for a while. We understand. Thus, we've created our Compilation Series. In this video, we look at some of our videos about Space. Sabrina talks to us about the Sun, stars, the universe, and...

Since the time of the ancient Greeks, scientists have been constructing a cosmic measuring tape to measure the universe from our own backyard all the way to its ever-expanding edge: the cosmic distance ladder. In this video, we climb...

The Milky Way is often described as measuring 100,000 light years across and containing the mass of a trillion Suns. But our home galaxy is actually far bigger, and might be much less massive. Astronomers aren't sure what the exact stats...

In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the...

If you think punching an asteroid to knock it off the course to Earth’s destruction is purely for science fiction, you might only be right a for a little longer! Plus, scientists are being thrown for a loop with the orbits of planets...

Hank briefs us on the current status of the Mars Science Laboratory, and gives us a taste of what we can hope to see coming from it in the next few months, and during the rest of its two year mission.

Hank reports on the discovery by NASA scientists of the most distant, oldest galaxy ever observed.

Michael Aranda hosts SciShow's new Quiz Show! Hank and Reid have a battle of wits to win prizes for two lucky Subbable Subscribers!

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There’s a massive black hole next door that appears far too big for its host galaxy! And in another galaxy, TWO supermassive black holes formed, giving us a glimpse at a true rarity in astronomy!

Maybe you'd like to just hear about one topic for a while. We understand. Thus, we've created our Compilation Series. In this video, we look at some of our videos about Space. Sabrina talks to us about the Sun, stars, the universe, and...

In this video, we discuss the reports about the detection of a pair of supermassive black holes orbiting only one light year apart from each other. Studying the dance of these giants should tell us a ton about how black holes grow.

So... how big is the Universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole Universe thing and how we fit into it.

Why is the universe organized the way it is? And why is it so empty? From planets and stars to superclusters and galactic filaments, the universe's largest structures formed because of its smallest. In this special collaboration with PHD...

Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!

Today Hank brings us the news of a unique astronomical discovery - a rogue planet. He also allays our fears of an apocalyptic collision with Earth. So, this new planet is awesome, but it needs a different name - CFBDSIR...

In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the...

Is the universe flat, spherical or hyperbolic?

How much of an effect would a second Sun have on Earth? Is there a way it could work?

While flying over a metropolitan or densely populated area at night, its likely that you wont see stars from the airplane window. This is because the excessive artificial lighting (i.e., light pollution) of the city can light up the sky...

When we look at distant stars, we are looking back in time. What is a light year, how is it measured and why do we measure distance in terms of time?



Physics - Universe - Learni

ng Points.

Light travels...

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...

The Big Idea is called Maglev, which stands for Magnetic Levitation. A wheel-less vehicle on a magnetic track is powered by electrical linear motors. This method has the potential to be faster and quieter than most conventional trains,...

While flying over a metropolitan or densely populated area at night, it’s likely that you won’t see stars from the airplane window. This is because the excessive artificial lighting (i.e., light pollution) of the city can light up the...

This video continues the space journey, covering letters F to L. It delves into fixed stars, galaxies, the Hubble Telescope, the International Space Station, Jupiter, the Kuiper Belt, and light years.



Alphabet in Outer Space...