The SpaceX Falcon Heavy rocket lifts off from launch pad 39A at Kennedy Space Center on February 6, 2018 in Cape Canaveral, Florida. The rocket is the most powerful rocket in the world and is carrying a Tesla Roadster into orbit. | Joe Raedle/Getty Images

What Impact Might SpaceX’s Falcon Heavy Program Have on the Atmosphere?

A single launch pumps a relatively small amount of emissions into the atmosphere, but SpaceX CEO Elon Musk has suggested sending a million people to Mars.