enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. X-ray astronomy - Wikipedia

    en.wikipedia.org/wiki/X-ray_astronomy

    X-rays start at ~0.008 nm and extend across the electromagnetic spectrum to ~8 nm, over which the Earth's atmosphere is opaque. X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects.

  3. X-ray optics - Wikipedia

    en.wikipedia.org/wiki/X-ray_optics

    X-ray optics is the branch of optics dealing with X-rays, rather than visible light.It deals with focusing and other ways of manipulating the X-ray beams for research techniques such as X-ray diffraction, X-ray crystallography, X-ray fluorescence, small-angle X-ray scattering, X-ray microscopy, X-ray phase-contrast imaging, and X-ray astronomy.

  4. 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.

  5. Planets like Earth facing threat from stars blasting intense ...

    www.aol.com/planets-earth-facing-threat-stars...

    Earth might once have been in danger – but is safe now, scientists say Planets like Earth facing threat from stars blasting intense X-rays at their atmospheres, Nasa study suggests Skip to main ...

  6. X-ray telescope - Wikipedia

    en.wikipedia.org/wiki/X-ray_telescope

    Chandra X-ray Observatory, launched by NASA in 1999, is still operational as of 2024. An X-ray telescope (XRT) is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites.

  7. X-ray - Wikipedia

    en.wikipedia.org/wiki/X-ray

    Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.

  8. X-ray microscope - Wikipedia

    en.wikipedia.org/wiki/X-ray_microscope

    The history of X-ray microscopy can be traced back to the early 20th century. After the German physicist Röntgen discovered X-rays in 1895, scientists soon illuminated an object using an X-ray point source and captured the shadow images of the object with a resolution of several micrometers. [2]

  9. Can nuclear blasts protect Earth from incoming asteroids ...

    www.aol.com/news/nuclear-blasts-protect-earth...

    Scientists used the most powerful laboratory source of radiation in the world to mimic the threat