Thursday, February 19, 2015

Getting to space

Getting to space is HARD. REALLY hard. To lift stuff up to the Space Station costs $12,000 per kilogram (2.2 pounds), which is Not Cheap (read my last post about the ISS here). You've probably seen how that works before, but here's a little video of the Apollo 11 launch:

Let me know in the comment section if this doesn't work

Right now, the best technology we have is to burn an incredible amount of fuel to launch a rocket up in the air, fighting gravity the entire way. Here's another video of the Orion launch, a lot more recently:

They have to do a LOT of checks before they fire this thing off

Lifting against gravity will always take energy - that's a law of the universe. That's part of the reason that some people are currently planning a one-way Mars mission - the space ship can't get off the earth's surface with enough fuel to land on Mars and then take off again (read more about this crazy mission at this website). But maybe there's another way?

A space elevator! If we could somehow build an elevator out to space, that would take less energy because we wouldn't be riding a series of explosions off the surface of the earth. Check out a great breakdown of the possibility here!

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