Space Research: Directions for the Future, Teil 1

activity Aerobee altitude angular angular resolution antenna AOSO aperture Apollo astronaut balloon bolometer capability chemical chromosphere composition corona density detection detectors discussed Earth effects electron emission energy equipment experiments exploration exploration of Mars flux galaxies gamma-ray gamma-ray astronomy geological gravitational ground-based Group important increased infrared instruments interplanetary investigations ionosphere Jupiter laboratory launching limit lunar lunar surface magnetic field magnetosphere major Mars Martian measurements ments missions Moon NASA needed observations Observatory obtained operation optical orbit particles payload photographic physical planetary planets plasma possible present probes problems radar radiation radio astronomy range Recommendation region resolution rotation satellites Saturn scientific sec of arc solar system solar wind sounding rockets sources space astronomy space flight space research Space Science spacecraft spectral spectrum structure techniques telescope temperature thermal tion ultraviolet University variations vehicles Venus wavelengths weightlessness x-ray x-ray astronomy