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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The origin of Jupiter and the Galilean satellite system is examined in the light of the new data that has been obtained by the NASA Galileo Project.
There has been a long-standing perspective in the planetary engineering community that the use of planetary protection sterilization techniques such as dry heat microbial reduction (DHMR) have led to significant mission failures in the past. This perception has led to a hesitation to craft mission designs that incorporate sterilization beyond the component-level. Via interviews with long-standing members of the planetary engineering community across the Agency, we have identified the root historical missions that have driven this perspective. The source, or Origin Story, which has been passed down to subsequent generations of engineers, is the failures tied to the early series of the Ranger missions. In this presentation, we examine the details behind the Ranger failures, the majority of which are non-planetary protection sterilization-related, and bring to light the myth of this perception.
Origin of black spherules from pacific islands, deep sea sediments and antarctic ice
Terrestrial origin of libyan desert silica-glass
Asteroid-impact hypothesis of tektite origin - southeast asian strewn fields
Origin of heavy elements and iron meteorites - nucleosynthesis
Origin of the lunar walled plain, ptolemaeus
Origin of tektites - uranium and lead in samples and isotopic composition of the lead
Solar origin of atmospheric and meteoric xenon determined by isotopic analysis
Origin & distribution of supersonic store interference/measurement of individual forces - swept-wing heavy bomber with large store figure
Origin and distribution of supersonic store interference/measurement of individual forces on delta-wing heavy bomber configuration mach 1.61
Origin of supersonic store interference from measurements of individual forces - swept-wing fighter-bomber with large & small stores
Solar origin of atmospheric xenon - neutron irradiation of solar xenon