Verified facts grounded in source documentation.
By early 2019, Deep Space Industries and Planetary Resources, the two major startups in the space resources industry, had been acquired by other companies with no interest in space resources.
Deep Space Industries developed the Comet propulsion system before Bradford Space acquired Deep Space Industries in January.
Deep Space Industries raised a Series A round of more than $3,500,000 from a group of private investors on 2018-04-17.