Episode Links:
NASA Astronaut & Vice President Pence Announcement (https://www.nasa.gov/press-release/vice-president-pence-to-visit-nasa-s-johnson-space-center-for-astronaut-class)
Joseph von Fraunhofer Biography 1 (https://web.archive.org/web/20140408224627/http://www.hao.ucar.edu/education/bios/fraunhofer.php)
Joseph von Fraunhofer Biography 2 (http://www.newadvent.org/cathen/06250a.htm)
Skylab Links:
NASA Space Science Data Archive (https://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1973-027A-05)
Skylab: A Guidebook, Ch. 5 (https://history.nasa.gov/EP-107/ch5.htm)
Skylab: A Guidebook, Ch. 4 (https://history.nasa.gov/SP-402/ch4.htm)
ATM Study Program- Final Report (https://web.archive.org/web/20100518075300/http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19770081341_1977081341.pdf)
