Las Vegas-based Bigelow already has one of its inflatable space habitats attached to the space station. Now it wants to send one to the moon to aid astronaut training and act as a base for missions far beyond.
SpaceX is getting really good at launching and landing used rockets, achieving the feat for the third time this year on Wednesday. CEO Elon Musk said he wants to cut the turnaround time for reflights from months to just 24 hours.
Dubai in the UAE is planning to build a huge "space simulation city" in the desert so scientists can develop life-supporting systems on Mars. Last year the UAE said it wanted to build a city on the red planet within 100 years.