Christmas 1973 on Skylab | Drew Ex Machina
File:Skylab astronauts talk to comet discoverer Kohoutek.jpg - Wikimedia Commons
File:Artist's concept of Skylab 4 astronauts observing Comet Kohoutek (S73-37274).jpg - Wikimedia Commons
Comet Kohoutek & Project Skylab Cachet Space Cover-Colorano Canaveral Cancel | eBay
File:Comet Kohoutek (S74-17688).jpg - Wikimedia Commons
Project Skylab 2nd Photos of Kohoutek December 29, 1973 - Colorano Cachet | eBay
US Space Cover Skylab 3 Photos Kohoutek KSC Kennedy Space Center FL 2/4/1974 | eBay
Skylab - Wikiwand
Skylab 4 Crew Televised Communication | NASA
Skylab 1 hi-res stock photography and images - Alamy
File:Luboš Kohoutek speaks to Skylab astronauts.jpg - Wikimedia Commons
Skylab: NASA Commemorates 40th Anniversary of America's First Space Station - Photo Gallery/Broadcast - Universe Today
Skylab 4 - Wikipedia
Skylab | The Space Collective
File:Skylab brightness observations of Comet Kohoutek.png - Wikipedia
Skylab: The flown and unflown missions - RocketSTEM
Searching for Skylab
A Dumb Decision': Remembering the Final Mission to Skylab, 45 Years Ago - AmericaSpace
1974 NASA Photo Comet Kohoutek As Seen By Skylab 4 Crew | eBay
Skylab
Comet Kohoutek & Project Skylab Cachet Space Cover-Colorano Canaveral Cancel | eBay
Skylab 1 hi-res stock photography and images - Alamy
Skylab 4 hi-res stock photography and images - Alamy
Skylab 1 hi-res stock photography and images - Alamy
PROJECT SKYLAB 2ND PHOTOS OF KOHOUTEK CAPE CANAVERAL 12/29/1973 PHILGRAF | eBay
Skylab 4
Skylab 4 hi-res stock photography and images - Alamy
Our SpaceFlight Heritage: Skylab-4 rises and closes out U.S.' first space station - SpaceFlight Insider
