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...

The Iridium satellite constellation provides L band voice and data information coverage to satellite phones, satellite messenger communication devices...

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...

Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium...

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...

than positive magnitudes, i.e. the scale is reverse logarithmic . The Iridium constellation was one of the first anthropogenic sources of near-space...

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...

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)...

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...

Iridium trifluoride is a binary chemical compound of iridium and fluorine with the chemical formula IrF 3. Reduction of iridium hexafluoride by metallic...