Astronomy is a subtheme of Ideas that consists of 5 sets that ran from 2012 to 2017. Most sets were released in 2017 which accounted for 2 sets. As of today, the average annual growth of all the sets in Ideas Astronomy is around 8.6% per year. The current value of all sets in new/factory sealed condtion is $1,000.92. As of today,
21104 NASA Mars Science Laboratory Curiosity Rover is the most valuable set in Ideas Astronomy with an estimated new/factory sealed value of $434.49.
Most valuable LEGO Astronomy set 21104 NASA Mars Science Laboratory Curiosity Rover - $434.49
Largest LEGO Astronomy set21309 NASA Apollo Saturn V - 1,969 pieces
The LEGO Ideas Astronomy theme focuses on sets that are scientific and space based projects such as real world builds like the NASA Curiosity rover to NASA Apollo Saturn V rocket as well as fantasy space projects like the Exo-Suit.
The LEGO Ideas theme, formally known as LEGO Cuusoo, is based around a website which allows users to submit ideas for LEGO products to be turned into potential sets available commercially. If fellow users in the LEGO Ideas community up vote the project to 10000 then LEGO Group has a committee which votes on whether to build the set and release it. If the project is approved and cleared for production, it is developed and later released as an official set under the "LEGO Ideas" banner.