Blowing up: Inflatable space habitats could be key to exploring the solar system 

 Private companies are making progress on expandable habitats, which could help humanity keep its foothold in Earth orbit and settle the moon and Mars. 

https://cdn.mos.cms.futurecdn.net/MJUaRKBKqz4sSznKfHQJWU.jpg

https://www.space.com/expandable-space-habitats-moon-mars-private-companies