Sizemology

We’ll start you with easy, everyday objects, then take you up to moons, planets, and the solar system! Let’s see how you measure up!

Funding

Sizemology was produced by the Space Science Institute’s National Center for Interactive Learning (NCIL). Initial development of this activity was supported by the National Science Foundation, with later updates and mobile support through NASA. Images courtesy NASA; USRA; USGS.

This material is based upon work supported by the National Science Foundation under Grant No. DRL 1010624. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

This material is based upon work supported by NASA under award Nos. NNX16AE30A and NNX11AI26G. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration.