TED Talks
TED: How radio telescopes show us unseen galaxies | Natasha Hurley-Walker
Our universe is strange, wonderful and vast, says astronomer Natasha Hurley-Walker. A spaceship can't carry you into its depths (yet) -- but a radio telescope can. In this mesmerizing talk, Hurley-Walker shows how she probes the...
SciShow
Minerva and the New Hunt for Alien Worlds
SciShow explains the science of detecting exoplanets -- planets in orbit around distant stars -- and how a new observatory being built in California may open up whole new worlds to us, literally!
TED Talks
TED: Why glass towers are bad for city life -- and what we need instead | Justin Davidson
There's a creepy transformation taking over our cities, says architecture critic Justin Davidson. From Houston, Texas to Guangzhou, China, shiny towers of concrete and steel covered with glass are cropping up like an invasive species....
TED Talks
TED: The fight against sex slavery | Sunitha Krishnan
Sunitha Krishnan has dedicated her life to rescuing women and children from sex slavery, a multimilion-dollar global market. In this courageous talk, she tells three powerful stories, as well as her own, and calls for a more humane...
SciShow
9 of the Most Abundant Animals on Earth
Check out nine abundant animals that help support the food chain in their ecosystems!
TED Talks
Candy Chang: Before I die I want to ...
In her New Orleans neighborhood, artist and TED Fellow Candy Chang turned an abandoned house into a giant chalkboard asking a fill-in-the-blank question: "Before I die I want to ___." Her neighbors' answers -- surprising, poignant, funny...
TED Talks
JR: One year of turning the world inside out
Street artist JR made a wish in 2011: Join me in a worldwide photo project to show the world its true face. One year after making his TED Prize wish, he shows how giant posters of human faces, pasted in public, are connecting...
SciShow
The First Results on the Interstellar Asteroid!
Our asteroid news edition this week clears up some misleading headlines regarding 3200 Phaethon, and our interstellar visitor has both a new name and a shape we haven’t seen before.
MinutePhysics
Aliens - Are We Looking in the Wrong Place?
Aliens - Are We Looking in the Wrong Place?
TED Talks
Paul Romer: The world's first charter city?
Back in 2009, Paul Romer unveiled the idea for a "charter city" -- a new kind of city with rules that favor democracy and trade. This year, at TED2011, he tells the story of how such a city might just happen in Honduras ... with a little...
TED Talks
TED: Hidden cameras that film injustice in the world’s most dangerous places | Oren Yakobovich
To see is to believe, says Oren Yakobovich — which is why he helps everyday people use hidden cameras to film dangerous situations of violence, political fraud and abuse. His organization, Videre, uncovers, verifies and publicizes...
TED Talks
TED: The small and surprisingly dangerous detail the police track about you | Catherine Crump
A very unsexy-sounding piece of technology could mean that the police know where you go, with whom, and when: the automatic license plate reader. These cameras are innocuously placed all across small-town America to catch known...
SciShow
The Story of the World's Favorite Fossil
What is the world's favorite fossil? Why the orthoceras of course! Hank will tell why that is in this episode of SciShow. Find out how you can get your very own orthoceras fossil.
TED Talks
Peter Saul: Let's talk about dying
We can't control if we'll die, but we can "occupy death," in the words of Peter Saul, an emergency doctor. He asks us to think about the end of our lives -- and to question the modern model of slow, intubated death in hospital. Two big...
TED Talks
TED: Who would the rest of the world vote for in your country's election? | Simon Anholt
Wish you could vote in another country's election? Simon Anholt unveils the Global Vote, an online platform that lets anybody, anywhere in the world, "vote" in the election of any country on earth (with surprising results).
SciShow
There's Going to Be a New Star in the Sky
The night sky is about to look a little different, but that's nothing new!
SciShow
The Mars Lander Crash: What Went Wrong?
Schiaparelli crashing into Mars wasn't exactly what the Exomars mission scientists were hoping for, but we're still going to get some useful information from the little probe's descent. And scientists have observed two of the brightest...
SciShow
Two Tragic Crashes
SciShow Space News looks into two recent rocket failures over U.S. soil, exploring possible causes and sizing up the risks of spaceflight since humans first started reaching for the stars.
TED Talks
Gangadhar Patil: How we're helping local reporters turn important stories into national news
Local reporters are on the front lines of important stories, but their work often goes unnoticed by national and international news outlets. TED Fellow and journalist Gangadhar Patil is working to change that. In this quick talk, he...
SciShow
These Voracious Ants Are Their Own Mobile Home
Army ants move around a lot, which means they can't build a nest like other ants do. So, to build their shelters, they came up with another, way weirder solution...
SciShow
What the Crater that Impacted the Dinosaurs Taught Us About Mars
We've been trying to understand Mars for years, but some scientists think that ancient craters on earth might hold some answers to our red neighbor's history.
TED Talks
Becci Manson: (Re)touching lives through photos
In the wake of the 2011 Japanese earthquake and tsunami, mixed into the wreckage were lost and damaged photos of families and loved ones. Photo retoucher Becci Manson, together with local volunteers and a global group of colleagues she...
SciShow
What’s Up With the Weird Pockmarks Up and Down the East Coast?
All along the east coast of the United States there are thousands of oval shaped pock marks, and scientists think they have a clue as to how they got there.
TED-Ed
TED-Ed: Could one vaccine protect against everything? | TED-Ed
There's a vaccine being developed now that would protect you against every strain of the flu— even ones that don't exist yet. But influenza is constantly mutating, so is a universal vaccine even possible? And how do you design a vaccine...