The Solar System. A Subway Map.


At first glance, this map, made by redditor ucarion, looks like a simple transit-style representation of the solar system. But really, it’s a more complex portrait of the thrust required to travel from one planet to another. The numbers show delta-v, which is the change in momentum a spaceship needs to leave or enter a planet’s orbit. So, because Jupiter is large and has a strong gravitational pull, you’d need a high delta-v of 45,000 meters per second to get from its surface to low orbit, compared with just 9,400 to get to low Earth orbit. Venus is another interesting example — though its mass isn’t that large, it has a high delta-v because of its dense atmosphere. (via)