# Mars Direct

> proposal for a crewed Mars mission

**Wikidata**: [Q606734](https://www.wikidata.org/wiki/Q606734)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mars_Direct)  
**Source**: https://4ort.xyz/entity/mars-direct


## References

1. Freebase Data Dumps. 2013
2. Quora