Planet Keys

The Planet Keys are a collection of keys that have a planet symbol on them. The only known exceptions are the Zero Keycard, which has a zero over a planet; and the Sun Key, as the sun isn't a planet. There are 6 keys and 4 keycards, making a total of 10 keys. They are used to open various locked doors and elevators that have matching planet symbols on them.

Sun Key
To be written.

Include:
 * A picture of the key; maybe a picture on the right of the door (Could just go into the gallery)
 * Where it's found and what it opens.
 * Any other noteworthy information

Mercury Keycard
To be written.

Venus Key
To be written.

Earth Key
To be written.

Mars Key
To be written.

Jupiter Key
To be written.

Saturn Keycard
To be written.

Uranus Keycard
To be written.

Neptune Keycard
To be written.

Zero Keycard
To be written.