Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
cloudwalking
on Dec 2, 2014
|
parent
|
context
|
favorite
| on:
NASA: We're sending humans to Mars
Everything else. Lift to orbit is only one of hundreds of factors.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
