What If Earth Orbited UY Scuti?

UY Scuti: It’s the largest star that we’ve ever discovered. And if it were to replace our Sun, it would change a lot more than just the amount of sunscreen you’d have to put on. Like, how long would it take for our planet to orbit this massive star? What would that do to our seasons? And would we even survive a single orbit?

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

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What If a Magnetar Collided With a Black Hole?

In the center of our galaxy, the Milky Way, there is a supermassive black hole feeding on nearby stars. It’s called Sagittarius A*. And if a giant gravitational monster slowly eating the galaxy isn’t terrifying enough, there is another cosmic monstrosity lurking around it. Could they, one day, come a little too close and collapse on each other? What would be left of the Milky Way if they did? Would there be even a slight chance that the Earth could get out of that safely?

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

Produced with love by Underknown in Toronto:

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The search for dark matter — and what we’ve found so far | Risa Wechsler

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Roughly 85 percent of mass in the universe is “dark matter” — mysterious material that can’t be directly observed but has an immense influence on the cosmos. What exactly is this strange stuff, and what does it have to do with our existence? Astrophysicist Risa Wechsler explores why dark matter may be the key to understanding how the universe formed — and shares how physicists in labs around the world are coming up with creative ways to study it.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know. For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), submit a Media Request here:

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The search for dark matter — and what we’ve found so far | Risa Wechsler

Visit to get our entire library of TED Talks, transcripts, translations, personalized Talk recommendations and more.

Roughly 85 percent of mass in the universe is “dark matter” — mysterious material that can’t be directly observed but has an immense influence on the cosmos. What exactly is this strange stuff, and what does it have to do with our existence? Astrophysicist Risa Wechsler explores why dark matter may be the key to understanding how the universe formed — and shares how physicists in labs around the world are coming up with creative ways to study it.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know. For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), submit a Media Request here:

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What is Cheops?

What is ESA’s Characterising Exoplanet Satellite, Cheops, and how will it improve our knowledge of exoplanets? Find out more in this interview with Kate Isaak, ESA Cheops project scientist.

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What is the Universe Made Of? Formula of the universe – Space Science Documentary

Composition. The Universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the Universe) and antimatter.

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Take A Journey Into The Center Of The Galaxy – How Do You Find Exoplanets?

We live in the Milky Way Galaxy, which is a collection of stars, gas, dust, and a supermassive black hole at it’s very center. Our Galaxy is a spiral galaxy, which are rotating structures that are flat (disk-like) like a DVD when looked upon edge-on. There is also a bulge in the middle that consists of mostly old stars. When you look at a spiral galaxy face-on, you can see beautiful spiral arms where stars are being born. Our solar system is in the Orion arm, and we are about 25,000 light years (2.5 X 10^17 miles) from the very center of the Galaxy.

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What Is A Block Universe?

I have a NEW channel ► “Meet, Arnold!” –

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Subscribe to Ridddle channel. We will make this universe smarter together!
Okay, okay. I got to go….. See You Soooooooooooooooon dudes 😉

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How the Universe Works Formation and Evolution of Planets in Universe – Space Discovery Documentary

Our Milky Way Galaxy was once thought to comprise the entire known universe. Today our universe encompasses many billions of galaxies, and its history can be recounted back to its earliest moments.

Our universe began with an explosion of space itself – the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies. Galaxies collected into groups, clusters, and superclusters. Some stars died in supernova explosions, whose chemical remnants seeded new generations of stars and enabled the formation of rocky planets. On at least one such planet, life evolved to consciousness. And it wonders, “Where did I come from?”

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