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On April 8, 2024, the Moon’s shadow fell upon the Earth, creating a total solar eclipse across North America. If you had the chance to see it, you're surely glad you didn't miss it. It’s an amazing coincidence that total eclipses happen at all — and that we’re alive at a time when we can see and predict them. We made this video so you can learn how to watch an eclipse safely, what to look for during an eclipse, why eclipses happen, and how eclipses have helped advance scientific research.

Explore this April 8, 2024 eclipse map from NASA! https://science.nasa.gov/eclip....ses/future-eclipses/

Find your next solar eclipse here: https://eclipse.gsfc.nasa.gov/SEatlas/SEatlas.html

Learn more about the solar eclipse timer app: https://www.solareclipsetimer.com/

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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 that ladder and explore how each rung has revealed something new and previously unthinkable about the universe we live in.

References: https://sites.google.com/view/....cosmic-distance-refe

0:00 How far away are things?
1:05 Near, far, parallax that star
3:25 Island universes and Hubble's blinking star
5:51 Redshifted rainbows and the expanding universe
7:41 Supernovae and the end of everything
9:08 Conclusion: The ladder of discovery
10:00 I'm hosting a game show!



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High fives to all our Brain Trust Patrons:

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David Johnston
Baerbel Winkler
Eric Meer
Karen Haskell

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A visual and musical journey to the edge of our universe, visualizing the fabric of space-time in order to study its dynamics and different forms...

0:00 - Galaxies
2:05 - Big Bang
3:20 - The Earth
6:35 - Black hole
9:10 - Rotating black hole
10:37 - Gravitational waves

You can listen to the soundtrack on SoundCloud :
https://soundcloud.com/arousse....l/sets/voyage-a-trav

This video is narrated by Octave Masson.
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What optical effects appear when we accelerate? Could we reach the speed of light? And what would we see when we try to go faster? All these answers in 15 minutes!

0:00 - Introduction
1:01 - Take-off
2:25 - Aberration of light
4:41 - Doppler effect
6:50 - Time dilation
7:48 - Length contraction
10:28 - Speed of light
12:24 - Warp drive

This video is narrated by Octave Masson.
For more videos, subscribe to the YouTube channel : https://www.youtube.com/ScienceClicEN
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Facebook Page : http://facebook.com/ScienceClic
Twitter : http://twitter.com/ScienceClic
Instagram : http://instagram.com/ScienceClic

Alessandro Roussel,
For more info: http://www.alessandroroussel.com/en

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To learn more :
https://en.wikipedia.org/wiki/....Relativistic_aberrat
https://en.wikipedia.org/wiki/Terrell_rotation

These 27 facts will blow your mind!Credits: https://www.buzzfeed.com/bfmp/videos/63948Check out more awesome videos at BuzzFeedVideo!https://bit.ly/YTbuzzfeedvideoGET MORE BUZZFEED:https://www.buzzfeed.comhttps:....//www.buzzfeed.com/v flagship channel. Sometimes funny, sometimes serious, always shareable. New videos posted daily!To see behind-the-scenes & more, follow us on Instagram @buzzfeedvideo http://bit.ly/2JRRkKULove BuzzFeed? Get the merch! BUY NOW: https://goo.gl/gQKF8m

Take a mind-blowing voyage to the most powerful and mysterious objects in the universe. (Aired January 10, 2018)

Official Website: https://to.pbs.org/3P9TdDL | #novapbs

Black holes are the most enigmatic and exotic objects in the universe. They’re also the most powerful, with gravity so strong it can trap light. And they’re destructive, swallowing entire planets, even giant stars. Anything that falls into them vanishes…gone forever. Now, astrophysicists are realizing that black holes may be essential to how our universe evolved—their influence possibly leading to life on Earth and, ultimately, us. In this two-hour special, astrophysicist and author Janna Levin takes viewers on a journey to the frontiers of black hole science. Along the way, we meet leading astronomers and physicists on the verge of finding new answers to provocative questions about these shadowy monsters: Where do they come from? What’s inside? What happens if you fall into one? And what can they tell us about the nature of space, time, and gravity?

Chapters
00:00:00 Introduction
00:10:23 What Is A Black Hole?
00:18:45 How Does A Black Hole Form?
00:24:40 What Would Happen If You Traveled Into A Black Hole?
00:29:58 The First Detection of A Black Hole: Cygnus X-1
00:50:47 The Relationship of Supermassive Black Holes and Galaxies
01:12:21 How Do Black Holes Grow?
01:30:56 New Technologies Giving New View of Black Holes
01:50:02 Conclusion

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#blackhole #spacedocumentary #supernova #blackholemysteries #blackholetv #blackholemysteries #astrophysics #astrophysicist #astronomy #physics #einstein #gravity #eventhorizontelescope #galaxy #jameswebbspacetelescope #ligonierministries

What is a black hole, what is inside a black hole, gravitational field, star life cycle, death of a star, cygnus x-1, quasar, what is a quasar, supermassive black hole facing earth, milky way galaxy supermassive black hole, supermassive black hole earth, event horizon black hole, LIGO

How Big is The Universe?

We begin at the familiar blue and green orb we call home and zoom out to explore the vastness of space. From the Moon, our closest cosmic neighbor, to the edges of the observable universe, prepare to be astonished by the sheer scale of everything that exists.

Travel with us as we venture past the Moon, understanding its distance in terms we can grasp. Witness the Sun, not just as a source of light, but as a milestone in the vastness of our solar system. We don't stop there; Mars, Neptune, and the outer reaches of our solar neighborhood await.

Discover the awe-inspiring distances to the Voyager 1 probe, the enigmatic Oort Cloud, and the neighboring star system of Alpha Centauri. As we sail through the Milky Way, understand our position in the grand scheme of things, where our entire history is just a whisper in the cosmic wind.

Our voyage takes us further, to the Local Group, Virgo Supercluster, and the staggering Laniakea Supercluster. We contemplate the Great Attractor's pull and our place in this immense heaven.

Confront the boundaries of the observable universe and ponder the mystery of what lies beyond. This video is not just a journey through space but a journey of perspective. Join us in marveling at the universe's grandeur and our humble place within it.

Subscribe to Science Time: https://www.youtube.com/sciencetime24

#universe #sciencetime #space