Be Smart
Sunburn, Sweat and the Science of Summer!
A summertime look at why we sweat, why we burn, and why our fingers wrinkle in the pool
SciShow
SPF Doesn't Mean What You Think It Means
SPF seems pretty simple. Find a high number, rub some on your nose, and you're ready for some sunshine. Unfortunately the science behind it is a little more complicated.
SciShow
Why Does Being in the Sun Make You So Tired?
The beach is nice, but why does spending time out in the sun leave us feeling so exhausted?
SciShow
3 Awesome Discoveries Made by Curiosity
Happy birthday, Curiosity! Michael Aranda and SciShow News celebrate the first anniversary of the Mars Science Laboratory landing on Mars with 3 awesome discoveries that the universe's coolest rover has made so far. Hints: they involve...
SciShow
What Fruit Flies Taught Us About Human Biology
For creatures that look nothing like us, fruit flies have been able to teach us a lot about human biology as we’ve studied them over the past century.
SciShow
Ghost Crabs Take Stomach Growling to a Whole New Level
You think your tummy rumbles? Meet the ghost crab — it growls using teeth inside its stomach, and not because it’s feeling peckish!
SciShow
The Deepest Sound in the Universe
Thanks to X-ray telescopes, scientists in the 1970s found the first real evidence that black holes actually existed, and astronomer Andrew Fabian has used X-ray research to unlock incredible mysteries ever since, including a giant sound...
SciShow
Why Don't Sharks Have Bones?
Eat facts, Shark Week! Hank takes you on a tour of the shark's amazing anatomy, including the many adaptations that made it a great predator -- despite not having any bones.
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
Space Superlatives of 2015!
Let's talk about some of the awesome stuff that happened in 2015! Caitlin Hofmeister tells us all about some pretty nifty black holes and the biggest rocket created by NASA.
SciShow
The Great Attractor: A Truly Massive Mystery
There's something out there SO massive that it's pulling on every object within hundreds of millions of light years. But we can't see it! So what DO we know? Today on SciShow Space, Reid Reimers tells us more about the Great Attractor.
SciShow
How Close Can You Get To The Sun?
How close could you get to the sun using today's spacesuits or spaceships? Find out in today's episode of SciShow Space!
SciShow
We Found Evidence of a Brand-New Particle | Space News
X-rays leaking from dead stars could breathe new life into a hypothetical particle theory, plus an ancient Titanic force may have helped twist Saturn’s axis.
SciShow
How Cosmic Rays and Balloons Started Particle Physics
Today, cosmic rays are used to understand things like supernovas, but in the early 1900s, they helped us discover brand-new subatomic particles long before the first accelerators.
TED Talks
Richard Weller: Could the sun be good for your heart?
Our bodies get Vitamin D from the sun, but as dermatologist Richard Weller suggests, sunlight may confer another surprising benefit too. New research by his team shows that nitric oxide, a chemical transmitter stored in huge reserves in...
TED Talks
TED: The dangers of willful blindness | Margaret Heffernan
Gayla Benefield was just doing her job -- until she uncovered an awful secret about her hometown that meant its mortality rate was 80 times higher than anywhere else in the US. But when she tried to tell people about it, she learned an...
SciShow
How We Accidentally Discovered Gamma-Ray Bursts
Gamma-ray bursts are one of the biggest mysteries in modern astronomy, but the mystery began on accident, thanks to the Cold War!
SciShow
Is Sitting Too Close to the TV Really Bad for You
It may be antiquated now, but the old pearl of wisdom: “Don’t sit too close to the TV” was good advice in the 1960s
PBS
The Real Star Wars
Anti-Satellite weaponry, giant X-ray lasers and kinetic impact missiles nicknamed the "Rods from God." Find out about the history of the real star wars that have been waged over the past 50 years.
TED-Ed
TED-ED: Is radiation dangerous? - Matt Anticole
When we hear the word radiation, it's tempting to picture huge explosions and frightening mutations. But that's not the full story - radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much...
SciShow
Using Galaxy Clusters to Look Into the Past
Gravitational lensing has given us a look at a galaxy in the very, very distant cosmic past using x-ray light, and NASA finally got its ICON mission off the ground!
TED-Ed
TED-Ed: What happens when your DNA is damaged? - Monica Menesini
The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues-including cancer. Fortunately, your...
SciShow
How To X-Ray A Black Hole
Black holes are everywhere, including at the center of our galaxy. But because they’re invisible they’re quite difficult to study. Looking at the disks of material surrounding them, however, can give us tons of clues about how they...
SciShow
The Fish that Strolls on the Sea Floor
We may never know when our ancestors walked out of the water into dry land. But it's possible they may have been walking in water for millions of years!