Is There Sound in Space?
Sound can’t actually travel through a vacuum like space, but scientists have learned that there’s still plenty to hear.
How a Butterfly’s Wingbeat CAN Change the Weather
You may have heard of the butterfly effect, where butterflies flapping their wings somehow cause tornadoes. Although it seems pretty unlikely, butterflies can affect the weather, just not in the way you might think.
How Blood Evolved (Many Times)
Blood is one of the most revolutionary features in our evolutionary history. Over hundreds of millions of years, the way in which blood does its job has changed over and over again. As a result, we animals have our familiar red blood. But also blue blood. And purple, and green, and even white.
Are You Afraid of Holes?
Honeycomb. Strawberries. Flower pods. Some people find these things incredibly scary. We call this extreme fear trypophobia. But why does it exist?
What Happens at the Event Horizon? | Space Time | PBS Digital Studios
What really happens when you approach the event horizon of a black hole? What do you see when you actually cross it? Matt shows you an elegant tool for understanding this mysterious region of spacetime. This episode is supported by The Great Courses Plus. Go to http://ow.ly/WPIo306GotR for your one month free trial!
What If Humanity Was A Type III Civilization? | Unveiled
According to the Kardashev Scale, a Type III Civilization should be able to harness the power of an entire galaxy… Humanity isn’t quite there yet, but what will our lives be like if we ever do become an advanced, Type III, intergalactic species? In this video, Unveiled looks far into the future, to see how […]
Unreasonable efficiency of black holes
Este vídeo trata sobre cuan eficiente son las reacciones al convertir masa a energía ( Por la equivalencia masa-energía de Einstein E=mc^2).
Our Ignorance About Gravity
This video is about how little we know about the behavior of gravity at short length and distance scales, what the constraints are on the inverse square law/Newton’s law of universal gravitation, at the human and microscopic and atomic scales. Only on solar system scales or larger do we have good constraints on Newton’s law […]
We Just Discovered How the Milky Way’s Twin Was Destroyed
The Milky Way doesn’t just have one twin, it has multiple, and each one of them can tell us more about how our galaxy has lived and how it might be destroyed.
Is Time Travel Possible? | Unveiled
Everyone has thought about time travel at least once in their life. Maybe you’ve wanted to go back in time and try to change something from your past. There’s even a lot of science fiction movies out there that involve time travel, or were inspired by time travel in some way or another. But is […]
NASA’s New Space Engine Is Powered by Nuclear Fission
From returning to the Moon to establishing outposts on Mars, NASA has the need for more power than ever before. Could nuclear fission be the solution they’ve been searching for?
What’s Inside A Black Hole? | Unveiled
Black holes are mysterious and bizarre objects in the universe that really have no explanation. In fact, we hardly know anything about what lies inside of a black hole. We know and understand what we see on the outside of a black hole, but we have no way of going inside one to take a […]
The Most Extreme Black Holes In The Universe
Black holes are the densest, most powerful objects in the universe. Capable of ripping entire planets and stars to pieces. This animation reveals what the smallest black holes look like compared to the largest.
Announcing a New Mission to Saturn’s Largest Moon on This Week @NASA – June 28, 2019
The latest about our new mission to Saturn’s largest Moon, Launching new missions and landing astronauts … on the same night! And …restoring the glory to the Apollo Mission Control Room … a few of the stories to tell you about – This Week at NASA!