It’s ALIVE!!!!! For the very first time, the Falcon Heavy has successfully lit all 27 of its mighty Merlin engines in preparation for its maiden launch. Once it flies, the Falcon Heavy will be the most powerful rocket currently in operation. SpaceX does a hold down test of all their rockets called a static fire and today we’re going to give you a quick rundown on what that is, how it works, and why they do it. Thanks for the excellent Falcon Heavy Static fire footage from the following people - Robin Seemangal - https://twitter.com/nova_road K. Scott Piel - https://www.flickr.com/photos/161849054@N04/ Florida Today - https://livestream.com/accounts/20522137/events/8010133/videos/169199075 Jeff Seibert, America Space - https://www.youtube.com/watch?v=VCJ6U0t0C94 Scott Manley's video about AMOS-6 - https://www.youtube.com/watch?v=mBcoTqhAM_g Show your support and join our discord channel by becoming Patron - http://patreon.com/everydayastronaut Music by Everyday Astronaut - http://soundcloud.com/everydayastronaut Everyday Astronaut hats, prints, shirts and more at - null Falcon Heavy and Falcon 9 models by Buzz Media - https://www.buzzspacemodels.com/ Thank you to those who translate! Spanish - Manuel Ferreira French - Gaëtan Lafitte