All Questions
Tagged with cost-to-orbitspace-shuttle
3 questions
2votes
1answer
456views
Why aren't more companies manufacturing the RS-25 (Space Shuttle Main Engine)?
The RS-25 is a great engine with a terrific ISP. It was used 42 years ago (on April 12th 1981) for the first Space Shuttle flight; therefore, the most of the patents on it must have expired long ago. ...
- 9,353
9votes
2answers
10kviews
How much does a cordless screwdriver for space cost?
I wonder how much a cordless space screwdriver costs and what its mass would be? I guess it would be a lithium-ion screwdriver, like on Earth, but would it have other specifications? Does anybody ...
- 321
35votes
7answers
12kviews
Why didn't NASA use the shuttle to make a profit?
My understanding is the shuttle was designed as cost-effective workhorse, a space-van to ferry cargo up to the ISS, conduct zero-G experiments and put satellites into orbit. So why didn't NASA take ...
- 453
