Astronomers are predicting that two stars are likely to merge and explode, and it may happen soon... on a cosmic timescale. Plus, scientists break up a meteorite and find the oldest solid matter ever discovered on earth.

RNA, the genetic messenger, makes sure the DNA recipe gives your cells exactly what they ordered. But sometimes that means inhibiting some other RNA that got the recipe wrong. This process is called RNA interference (RNAi), and it acts...

This week on SciShow Space News, photos of Comet 67P and Pluto are helping us solve old mysteries and creating some new ones.

You might think something is so "icky" that you try avoid it, and scientists think there's a reason humans, and even some other animals, do this.

At the heart of the Milky Way, there's a supermassive black hole that feeds off a spinning disk of hot gas, sucking up anything that ventures too close -- even light. We can't see it, but its event horizon casts a shadow, and an image of...

In this collection of classic MinuteEarth videos, we tackle the science of size.

The earth is a big place to keep clean. With Litterati -- an app for users to identify, collect and geotag the world's litter -- TED Resident Jeff Kirschner has created a community that's crowdsource-cleaning the planet. After tracking...

You can't understand climate change in pieces, says climate scientist Gavin Schmidt. It's the whole, or it's nothing. In this illuminating talk, he explains how he studies the big picture of climate change with mesmerizing models that...

In a quest to make sense of the political environment in the united States in 2017, lawyer and ACLu executive director Anthony D. Romero turned to a surprising place -- a 14th-century fresco by Italian Renaissance master Ambrogio...

Chris Domas is a cybersecurity researcher, operating on what's become a new front of war, "cyber." In this engaging talk, he shows how researchers use pattern recognition and reverse engineering (and pull a few all-nighters) to...

If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?

Sculptor and engineer Arthur Ganson talks about his work -- kinetic art that explores deep philosophical ideas and is gee-whiz fun to look at.

Nine days before TED2008, filmmaker David Hoffman lost almost everything he owned in a fire that destroyed his home, office and 30 years of passionate collecting. He looks back at a life that's been wiped clean in an instant -- and looks...

Killing all the life on Earth is easy. But what about destroying the planet itself? That is DEFINITELY going to happen!! But HOW? Could it be Nukes? A Giant Asteroid? A Collision with another planet? And what's more, will anyone be...

Do you wait to charge your phones battery until it's close to dying? If you do- surprise! You're doing it wrong.

Author Jennifer 8. Lee explains how the chopstick spread from the East to the West -- and was designed to give you the perfect bite.

Explore electrophoresis with The Amoeba Sisters! This biotechnology video introduces gel electrophoresis and how it functions to separate molecules by size. Expand video details for table of contents. Major Points in Video: Intro 00:00...

All living things are made of cells. In the human body, these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into the cell, introducing the...

Featuring Peter Winkler, our SciShow graphics guru, and Professor Claw, the emperor scorpion.

We decided it would be cool to have guests come into the studio and talk about science with H
ank.
in this episode, Peter and Hank...

Winter means snow, and snow means lots of fun! Jessi and Squeaks love building snowmen and snow forts, but there's one really cool thing made of snow that they can't build themselves: icicles! Join them to learn how these natural winter...

Meteorites are extraterrestrial rocks that have ended up on earth. All of them are literally 'out of this world,' but here are three of the strangest of these aliens.

Millennials and Gen Z will inherit 30 trillion dollars of wealth in the coming decades, and what they do with their money will have an incredible impact on the future of the planet, says impact investor Miguel Goncalves. He makes a case...

Does collecting more data lead to better decision-making? Competitive, data-savvy companies like Amazon, Google and Netflix have learned that data analysis alone doesn't always produce optimum results. In this talk, data scientist...

If you take a look at a map of Scotland, you'll notice an eerily straight line running through the highlands, this is the Great Glen Fault the product of half a billion years of time and geology.