The Chemistry of Space
How do we know the chemical composition of far-distant space material we’ve never sampled or even touched? JWST Deputy Project Scientist for Planetary Science Stephanie Milam helps us understand how stars, comets and other heavenly bodies can be analyzed by the unique chemical fingerprints scientists discern strictly through observation.
Special thanks to the entire team at NASA’s Goddard Space Flight Center for hosting our visit, to Bill Ochs, Dr. John Mather, Begoña Vila, Jody Davis and Dr. Stefanie Milam for sharing their time, knowledge and enthusiasm with us, to Laura Betz for managing our time on site, and to Maggie Masetti for making sure the entire shoot ran smoothly and serving as science consultant.
By: How Stuff Works.