Astronomy Class are unique in Australian hip-hop, and possibly globally. Science-fiction-referencing reggae-themed hip-hop is not something you come across every day. The group got their start when producers Sir Robbo (a crate-digging addict and also drummer with dub bands) and Chasm (formerly a guitarist with instrumental rock band Ukiyo-E) came up with the idea of doing an album together using a variety of different guest singers and rappers on each track. After crafting a set of Jamaican-influenced beats they took them to their first-pick vocalist, the Herd's MC Ozi Batla. ...