Beacon

The Beacon is an item in Lunacraft added in Update 1.8; it is now an item listed in the program's internal items.txt file.

General Information
A Beacon will summon a Friendly Astronaut to the location where it is placed. Beacons behave like other Materials, as they can be placed like any other block, and if dropped from your inventory the hovering, spinning Entity will vanish in approximately 25 seconds.

Beacons can be stacked in your inventory and placed in the environment one on top of the other as a block. A new bright green Astronaut will appear for each Beacon you place. When placed a musical chime (scale from low to high pitch) is played.

The difference between a Beacon and most other placeable blocks is that when you break a Beacon you do not get the block back.