We present preliminary design features for a second generation thermomechanically compensated sapphire resonator.

We present test results and design details for the first short-term frequency standard to achieve ultra-high stability without the use of liquid helium.

This paper describes the science driven requirements for a robotic vehicle, which utilizes gravity, and both passive and active heating systems to drive ice to a liquid phase change state, in order to facilitate mobility.

Spacecraft instruments requiring cryocoolers in their design struggle to keep overall power requirements in line with feasible solar array dimensions and launch vehicle lift capacities. Intermediate temperature (150 K to ...

Jet Propulsion Laboratory, under joint Ballistic Missile and Defense Organization/Air Force and NASA/Eos Atmospheric Infrared Sounder sponsorship is conducting extensive space cryocooler characterization to provide a ...

This paper attempts to compile available flight data on contamination effects experienced during multi-year space missions and ground tests to date as a help to those designing and conducting future long-life missions with ...