Cosmic Walk takes hard-to-imagine times and distances and maps them onto long walks.
It features The Solar System, which compresses the 4.5 billion kilometres between the Sun and Neptune into a one kilometre walk.
Cosmic Walk takes hard-to-imagine times and distances and maps them onto long walks.
It features The Solar System, which compresses the 4.5 billion kilometres between the Sun and Neptune into a one kilometre walk.