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Gravitation, Cosmology, and Cosmic-Ray Physics (1986) / Chapter Skim
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I. Summary of Principal Recommendations
Pages 1-8

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From page 1...
... I Summary of Principal Recommendations
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From page 3...
... RECOMMENDATIONS ON GRAVITATIONAL PHYSICS Space Program in Gravitation In the last two decades gravitation has evolved from a predominantly theoretical subject to a state where experimental work is making substantial contributions. Several erects predicted by general relativity have been checked experimentally and found to agree with theory to better than 1 percent accuracy.
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From page 4...
... · Test for "magnetic" gravitation Relativity gyroscope experiment (Gravity Probe B) · Improve solar-system tests Improve laser and radar ranging to the Moon and planets Improve accuracy of ranging to future planetary spacecraft · Study ideas at frontiers Millihertz gravity waves and second-order tests Ground-Based Studies in Gravitation Most ground-based research in gravitation is focused on the detection of gravitational waves.
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From page 5...
... We endorse NASA's forward-looking program and hope that the following missions of great importance to cosmology can be started soon. · Space initiatives important to cosmology Advanced X-Ray Astrophysics Facility, Space Infrared Telescope Facility, Large Deployable Reflector Ground-Based Studies in Cosmology Astronomical telescopes have told us most of what we know about the universe, and cosmology has much to gain from the major ground-based instruments recommended by the Astronomy Survey Committee.*
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From page 6...
... · Restructure support New funding for growing opportunities in cosmology Foster groups with diverse expertise RECOMMENDATIONS ON COSMIC-RAY PHYSICS Space Program in Cosmic Rays Galactic cosmic rays provide a direct sample of material from outside the solar system, while solar energetic particles provide a sample of material from the Sun and the low-energy anomalous component of cosmic rays probably provides a sample of the local interstellar medium. All these energetic particles are evidence of processes in nature that accelerate particles to relativistic energies.
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From page 7...
... At the same time these detectors make possible more-sensitive searches for possible new particles and for neutrinos of extraterrestrial origin. Meanwhile the Fly's Eye detector in Utah is collecting unique data on the highestenergy cosmic rays (above 10'9 eV)
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Key Terms

  • space program
  • gravitational waves
  • astronomy survey
  • baseline array
  • energetic particles

  • super collider
  • gravitation research
  • solar energetic
  • vigorous program
  • galactic cosmic

  • superconducting super
  • technology telescope
  • survey committee
  • underground detectors
  • physics space

  • gravity waves
  • explorer spacecraft
  • recent applications
  • improve resonant
  • continued support

  • gravitation relativity
  • improved detectors
  • measure electrons
  • rays probably
  • astrophysical particle

  • anomalous component
  • highestenergy cosmic
  • anomalous cosmic
  • address questions
  • space techniques


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