On the Space Shuttle Orbiter Atlantis' middeck, Astronaut Donald R. McMonagle, mission commander, works with the Heat Pipe Performance (HPP-2) experiment during STS-66 mission. HPP-2 was flown to investigate the thermal performance and fluid dynamics of heat pipes operating with asymmetric and multiple heating zones under microgravity condition.

Astronaut Donald McMonagle works with HPP-2 experiment on middeck

STS066-22-012 (3-14 Nov 1994) --- On the Space Shuttle Atlantis' mid-deck, astronaut Donald R. McMonagle, mission commander, works with the Heat Pipe Performance (HPP-2) experiment. HPP-2 was flown to investigate the thermal performance and fluid dynamics of heat pipes operating with asymmetric and multiple heating zones under microgravity conditions. McMonagle was joined by four other NASA astronauts and a European Space Agency (ESA) astronaut for 11-days aboard Atlantis in Earth-orbit in support of the Atmospheric Laboratory for Applications and Science (ATLAS-3) mission.

Foale and Kuipers work at the MSG during EXP 8 / EXP 9

ISS008-E-21999 (22 April 2004) --- Astronaut C. Michael Foale (foreground), Expedition 8 commander and NASA ISS science officer, and European Space Agency (ESA) astronaut Andre Kuipers of the Netherlands work with the HEAT experiment in the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station (ISS). The main aim of the HEAT technology demonstration is the characterization of the heat transfer performance of a grooved heat pipe in weightlessness.

Florida, Empty Payload Bay and Earth Limb

STS043-83-082 (2-11 Aug 1991) --- Having bade farewell to its Tracking and Data Relay Satellite/IUS payload, Atlantis' cargo bay appears somewhat vacant in this scene, backdropped over the southern two-thirds of the Florida peninsula. Important activity in the payload bay continues, however, with the operation of Space Station Heat Pipe Advanced Radiator Element (SHARE II), an experiment carried on the starboard side (lower left quadrant of frame). Purpose of the SHARE experiment is to demonstrate microgravity thermal vacuum performance of a heat pipe radiator for heat rejection as a prelude to development of a Space Station heat rejection system. The foil covered ring and horseshoe shaped objects aft in the payload bay served as restraint devices for the TDRS-E prior to its deployment six hours after Atlantis lifted off from Kennedy Space Center's Launch Pad 39A.