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  2. Effects of ionizing radiation in spaceflight - Wikipedia

    en.wikipedia.org/wiki/Effects_of_ionizing...

    Due to the potential negative effects of astronaut exposure to cosmic rays, solar activity may play a role in future space travel. Because galactic cosmic ray fluxes within the Solar System are lower during periods of strong solar activity, interplanetary travel during solar maximum should minimize the average dose to astronauts.

  3. Astrophysical X-ray source - Wikipedia

    en.wikipedia.org/wiki/Astrophysical_X-ray_source

    The X-ray colors represent the temperature of the X-ray emission from each star: hot stars are blue-white and cooler stars are yellow-red. The brightest object in the optical image is the full moon, which is also in the X-ray image. The X-ray image was actually obtained by the ROSAT satellite during the All-Sky Survey phase in 1990–1991.

  4. X-ray astronomy - Wikipedia

    en.wikipedia.org/wiki/X-ray_astronomy

    For a satellite or space probe to qualify as a deep space X-ray astronomer/explorer or "astronobot"/explorer, all it needs to carry aboard is an XRT or X-ray detector and leave Earth's orbit. Ulysses was launched October 6, 1990, and reached Jupiter for its " gravitational slingshot " in February 1992.

  5. Cosmic ray - Wikipedia

    en.wikipedia.org/wiki/Cosmic_ray

    The magnitude of the energy of cosmic ray flux in interstellar space is very comparable to that of other deep space energies: cosmic ray energy density averages about one electron-volt per cubic centimetre of interstellar space, or ≈1 eV/cm 3, which is comparable to the energy density of visible starlight at 0.3 eV/cm 3, the galactic magnetic ...

  6. X-ray telescope - Wikipedia

    en.wikipedia.org/wiki/X-ray_telescope

    The first X-ray picture of the Sun from a rocket-borne telescope was taken by John V. Lindsay of the NASA Goddard Space Flight Center and collaborators in 1963. The first orbiting X-ray telescope flew on Skylab in the early 1970s and recorded more than 35,000 full-disk images of the Sun over a 9-month period. [3]

  7. Van Allen radiation belt - Wikipedia

    en.wikipedia.org/wiki/Van_Allen_radiation_belt

    Draining the charged particles from the Van Allen belts would open up new orbits for satellites and make travel safer for astronauts. [ 46 ] High Voltage Orbiting Long Tether, or HiVOLT, is a concept proposed by Russian physicist V. V. Danilov and further refined by Robert P. Hoyt and Robert L. Forward for draining and removing the radiation ...

  8. Chandra X-ray Observatory - Wikipedia

    en.wikipedia.org/wiki/Chandra_X-ray_Observatory

    The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, 1999.

  9. Cosmic ray astronomy - Wikipedia

    en.wikipedia.org/wiki/Cosmic_ray_astronomy

    Cosmic ray astronomy faces difficulty in identifying the exact sources of cosmic rays because charged particles are deflected by magnetic fields in space, and as a result tracing the paths of cosmic rays back to their origins require sophisticated modeling techniques and multi-messenger observations to infer their source locations.