Get 3 FREE months of iScanner PRO and 10 GB of cloud storage here: https://myfiles.iscanner.com/apply-promocode/WhatIf To activate: 1. Go to the iScanner link above. 2. Create an account on the webpage. 3. Install the app and sign in with the same account. There's a needle approaching Earth at the speed of light. A needle? Pfft! That's no big deal, right? Well, unfortunately, it's a very big deal. A needle traveling this fast can cause devastating effects on Earth. But why? What kind of destruction could this tiny little needle cause? And in what scenario would this be possible? 00:00 What If a Needle Hit The Earth At The Speed Of Light? 00:43 Speed of Light 02:10 Why Lightspeed Is Impossible 03:35 Impact on Earth 09:25 Impact on a Human Body 09:55 Extinction-Level Volcanic Eruptions 11:49 Possible Human Survival Zones 12:22 What If You Dropped a Steak From Orbit? 14:55 Steak Dropped From Space – Reentry Effects 16:20 Cooking Stages of Falling Steak Support us on Patreon: https://www.patreon.com/whatifshow/membership Get the What if book: http://bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring our episodes or collaborating? Email us: contact@underknown.com Our other channels: How to Survive: https://bit.ly/how-to-survive-show Aperture: https://bit.ly/aperture-show T-shirts and merch: https://bit.ly/shopwhatif Newsletter: http://bit.ly/whatif-newsletter What If elsewhere: Discord: https://discord.gg/Bj5UnspbwE Whatsapp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y Instagram: http://bit.ly/whatif-instagram Twitter: http://bit.ly/whatif-twitter Facebook: http://bit.ly/facebook-whatif Produced by Underknown: https://underknown.com #whatif #earth #needle #speedoflight #astronomy #doomsday