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The NASA exploration Initiative provides a defining vision for the U.S. space program that will include a series of human and robotic missions to the Moon, thereby enabling ultimate exploration of Mars and other destinations. Exploration combines robotic and human mission elements that should ideally support each other in terms of advancing the ability to discover, operate, and support a sustained...
The Sentinels mission is a key component of NASA's Living With a Star (LWS) program. The Sentinels Science and Technology Definition Team (STDT) has completed a study to define the science objectives, measurement requirements and observational strategies, and mission design for the Sentinels mission. The Inner Heliospheric Sentinels (IHS) are one of the three flight elements (the others are the Near...
To overcome the difficulty in determining which new metal-oxide materials may be useful as carbon monoxide or hydrocarbon sensors, a rapid evaluation process using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) has been developed. Three basic response modes, absorptive, electrochemical, and thermistor, are herein described for metal-oxide materials. Data from the evaluation...
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