Propelling a spaceship with photons would be like trying to energize a spaceship with a flashlight. Today, Dr. Kaku addresses a question posed by Serge Andrew Shpad: Is a photon engine possible? Could it be used to power a spaceship?

Read more at BigThink.com: http://bigthink.com/dr-kakus-universe/why-we-cant-fire-the-photon-torpedos

Follow Big Think here:
YouTube: https://www.youtube.com/user/bigthink
Facebook: https://www.facebook.com/BigThinkdotcom
Twitter: https://twitter.com/bigthink