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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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At least 181 records · Page 10

Helios cooperative solar probe

This paper reports on the development of the Helios Program, which has been actively pursued for approximately four years. The spacecraft is designed to carry ten experiments to within 0.3 AU of the sun to measure the interplanetary environment. Details of the design and development phase are reported.

Unz, F.↗

Probing solar system objects at infrared wavelengths

The instruments, techniques, and analysis methods employed in IR observations of solar-system objects are discussed and illustrated with sample data. Particular attention is given to (1) high-resolution (Doppler-limited) spectra of H2O in Comet Halley and Comet Wilson (1986l), obtained with the NASA Kuiper Airborne Observatory in 1985-1986, and (2) scanning observations of Jovian thermal emission, obtained with the NASA IRTF in 1987 and subjected to detailed time-series analysis to investigate atmospheric motion. The data are presented in spectra, energy-level diagrams, maps, and graphs and briefly characterized.

Mumma, M. J.↗

Ulysses probes solar wind, interstellar gas

The ESA-NASA Ulysses mission will furnish high-latitude observations which may deepen current understanding of the outward flow of gases from the magnetically open regions of the sun. Also furnished will be a clearer view of the processes in the Galaxy that create cosmic rays, and how cosmic rays enter the solar system. The Ulysses mission has already achieved important new results during its travel in the ecliptic plane; the density and temperature of the interstellar neutral He flowing into the solar system has been directly measured.

Goldstein, Bruce↗

Space Weather: From Fire to Ice and the Parker Solar Probe Mission

Objective: Enhance awareness of space weather and why you should care. Definition: The conditions on the Sun, in space, and in our upper atmosphere that can influence the performance and reliability of space-borne and ground-based technological systems and endanger human life or health.

space weather↗