There are already 1,500 satellites in orbit, but the Earth’s exosphere could become even more crowded. Here’s what satellites do, and what is on the horizon. Read more
Nearly 6,000 satellites circle our tiny planet. About 60% are space junk, 40% are operational—and hundreds more are launched every year. Read more
This infographic sizes up different rockets used to explore space, from the USSR’s Soyuz to the SpaceX Starship. Read more
How big is the world’s nuclear arsenal? Here are the stockpiles of the nine countries with nuclear weapons. Read more
How much does a space flight cost? Here’s a look at the cost per kilogram for space launches across the globe since 1960. Read more