Gravity makes it possible for us to live on Earth, but it also makes it pretty hard to leave. Satellites fight gravity by going just fast enough to free-fall around the planet indefinitely, like the International Space Station, with many travelling at speeds of more than 17,500 mph (28,200 km/h). But if you want to leave this planet, you have to go faster. This speed is called the escape velocity.
How fast you’d have to go to leave every planet in the solar system – in one tidy, animated GIF above: Via SciencAlert