Links to presentations from CAST 2018.
Space: It's Really, Really Big
Related documents: Tools of an Astronomer and Electromagnetic Spectrum from Missdoctorbailer.com under Unit 6.
Related documents: Station Cards, and Convection Currents and Snack Tectonics, from my files and Evidence of plate tectonics, and Topographic Maps from Missdoctorbailer.com in Unit 8.
(The Missdoctorbailer site files are free for use and may be edited to suit your needs.)