# Viking program

> pair of NASA space probes sent to Mars

**Wikidata**: [Q233708](https://www.wikidata.org/wiki/Q233708)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Viking_program)  
**Source**: https://4ort.xyz/entity/viking-program


## References

1. Freebase Data Dumps. 2013
2. BabelNet