We often use decibels, a measure of sound pressure, to describe how loud something is - but loudness is caused by how we perceive sounds, and the two often don't line up.

How can you tell the difference between a yellowjacket and a hornet? And how much cosmic XP do you need to evolve a wasp into a bee? Follow the insect that stung you, and discover the fascinating world of wasp nests and bee hives.

Want to learn more about the topic in this week's video? Here are some keywords/phrases to get your googling started: - Mass Extinction Event: a significant, global decrease in the diversity of life - "Big 5": The five biggest mass...

Is the Universe Entirely Mathematical feat. Max Tegmark

Computer Color is Broken

Remember that episode we did on Australia’s Pink Lake? Well, we have a follow-up! Hank explains in this episode of SciShow News.

Welcome back to SciShow News! The internet has spoken and it shall be "considered'. . .Boaty McBoatface will be bestowed upon a drone ship aboard the RRS Sir David Attenborough. That and the UAE are planning on building a mountain!

How Long Can You Balance a Pencil

Parallel Universes - Many Worlds

The answer to this question has everything to do with drag & kinetic energy vs momentum change (thrust) ie, a bigger engine fan allows for a larger air mass to be accelerated a smaller amount to give the same thrust as you'd get from a...

Why is the Sun Yellow and the Sky Blue

Why Raindrops Are Mathematically Impossible

Black holes are a wondrous force of the universe! Hank explains how we found a supermassive rogue black hole & how DNA behaves in space!

Concrete doesn't dry - it sets!

How to Find an Exoplanet

This episode is a little bit different from the norm, because I've created the sound of hydrogen - or, that is, what if it would sound like if it emitted sound instead of light waves!

Why The Full Moon is Better in Winter

A Polarizing Discovery About the Big Bang!

Where Was The Big Bang

It has NO EDGE. And NO CENTER... or does it?

In this quantum world, what does it mean to touch something? Do we really hover above the chairs we're sitting in?

Youtube Video vs. The Universe

Evolution vs Natural Selection

Why Only Some Monkeys Have Awesome Tails