• Thumbnail for Iridium
    Iridium is a chemical element; it has symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is...
    82 KB (7,852 words) - 19:07, 16 September 2024
  • Thumbnail for Iridium satellite constellation
    The Iridium satellite constellation provides L band voice and data information coverage to satellite phones, satellite messenger communication devices...
    62 KB (5,612 words) - 18:55, 29 August 2024
  • There are two natural isotopes of iridium (77Ir), and 37 radioisotopes, the most stable radioisotope being 192Ir with a half-life of 73.83 days, and many...
    23 KB (1,234 words) - 01:15, 15 May 2024
  • Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium...
    43 KB (3,938 words) - 00:18, 16 September 2024
  • Look up Iridium or iridium in Wiktionary, the free dictionary. Iridium is a chemical element with symbol Ir and atomic number 77. Iridium may also refer...
    781 bytes (149 words) - 16:43, 18 November 2023
  • Thumbnail for Satellite flare
    than positive magnitudes, i.e. the scale is reverse logarithmic . The Iridium constellation was one of the first anthropogenic sources of near-space...
    21 KB (1,991 words) - 20:38, 26 May 2024
  • The term iridium anomaly commonly refers to an unusual abundance of the chemical element iridium in a layer of rock strata at the Cretaceous–Paleogene...
    5 KB (531 words) - 23:28, 30 August 2024
  • Iridium trifluoride is a binary chemical compound of iridium and fluorine with the chemical formula IrF 3. Reduction of iridium hexafluoride by metallic...
    3 KB (165 words) - 12:36, 8 May 2023
  • Iridium-192 (symbol 192Ir) is a radioactive isotope of iridium, with a half-life of 73.827 days. It decays by emitting beta (β) particles and gamma (γ)...
    5 KB (478 words) - 19:41, 9 February 2024
  • Iridium tetrabromide is a binary inorganic chemical compound of iridium and bromine with the chemical formula IrBr4. This is a salt of iridium metal and...
    3 KB (163 words) - 03:12, 10 July 2023