Ion thrusters are the future. How far away are we from them becoming the norm? Visit https://brilliant.org/astrum to sample their courses in a 30-day free trial + the first 200 people will get 20% off their annual subscription.

Astrum merch now available!
Apparel: https://teespring.com/stores/astrum-space.
Metal Posters: https://displate.com/promo/astrum?art=5f04759ac338b.

SUBSCRIBE for more videos about our other planets.
Subscribe! http://goo.gl/WX4iMN
Facebook! http://goo.gl/uaOlWW
Twitter! http://goo.gl/VCfejs.

Astrum Spanish: https://bit.ly/2KmkssR
Astrum Portuguese: https://www.youtube.com/channel/UChn_-OwvV63mr1yeUGvH-BQ

Donate!
Patreon: http://goo.gl/GGA5xT
Ethereum Wallet: 0x5F8cf793962ae8Df4Cba017E7A6159a104744038

Become a Patron today and support my channel! Donate link above. I can’t do it without you. Thanks to those who have supported so far!