After several failed attempts, SpaceX made history when it managed to successfully land its reusable Falcon 9 rocket booster on a (robotic) ship stationed off the Florida coast.
The road towards efficient space exploration and development is, however, a long one. Let’s think bigger. Let’s think about large space stations, asteroid mining, colonies on the Moon and Mars. Many of these projects will need an initial investment originating from Earth, probably consisting of pre-manufactured goods. As a species, we have to think long-term.