Liminal Recondite Device

Marbles are rare and mysterious Discoveries found around the Planets, usually underground. They can be attached to Tier-2 Attachment Slots like other objects, but they cannot be researched and have no use. They do give off some light, making them easy to find at night and usable as a light source for nighttime and cave exploring. They also trigger Reaction slots as well as when scoring a goal with the Recreational Canopy.

Types
Currently, there are three different types of Marble:


 * Zebra Ball: This one has stripes of black and white curled around the sphere, the pattern similar to a zebra.
 * Chess Ball: This one has a checkerboard pattern, and as such has been named the Checker Ball.
 * Leopard Ball: This one is white covered in black spots of varying size, the pattern similar to a leopard.

Further Uses
For technical players, marbles serve an additional purpose. As marbles are spherical, they can easily roll on a surface and come to rest at the lowest point. This property can be used, when creating completely flat surfaces using the terrain tool in 'flatten mode', to find the point on the flat surface which is closest to the planet core, a point which may be useful for alignment purposes.

Trivia

 * According to developers, the objects were originally used for testing physics and light systems, but were accidentally left in the game.
 * The easiest place to get marbles was Glacio, as marbles commonly spawn on its surface.
 * Mini Zebra Balls are Tier-1 sized versions of the Zebra Ball. They have only been seen in SES Vlog: 005 so far.