Rivada Space Networks signs a contract with SpaceX to launch 300 satellites on twelve Falcon 9 missions

Thousands of satellites are launched into low orbit. It could harm the ozone layer.

Scientists use satellites to track earth 'greening' amid climate change

Rocket reusability has lead to a major and "often overlooked" SpaceX benefit: “It's an incredible advantage in reliability to get your hardware back and learn stuff you didn't expect ... companies that don't recover their rockets have issues they don't know about, that someday will bite them.”