Links to Useful (and free) Earth Science Software:

 

> Seismic Eruption (from Alan L. Jones)

> Stellarium (a free open source planetarium for your computer)

> Carbon 14 Dating Calculator

> Solar System 3D Simulator

> Celestia - Space Simulation Program

> Orbitron - Satellite Tracking Software

> Interactive Simulations (something for everyone)

> IRIS educational software (earthquake related)