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  1. Iridium - Wikipedia

    Iridium is a chemical element; it has the symbol Ir and atomic number 77. This very hard, brittle, silvery-white transition metal of the …

  2. Company | Iridium

    The Iridium Online Museum invites visitors to explore the milestones, challenges, and breakthroughs that shaped the world’s only …

  3. The Only Truly Global Network | Iridium Satellite Communications

    Trusted global satellite communications for safety, security, and the most important applications. We’re the network built for today …

  4. Iridium | Definition, Properties, & Uses | Britannica

    Oct 2, 2026 · Iridium, chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table. It is …

  5. Iridium satellite constellation - Wikipedia

    Animation shows approximately 10 minutes. The Iridium satellite constellation provides L band voice and data information coverage …

  6. Iridium - Element information, properties and uses | Periodic Table

    Iridium was originally found as a contaminant (with the element osmium) in platinum, and it was from the solid remnants left when …

  7. Iridium Facts, Symbol, Discovery, Properties, Uses

    Iridium (pronounced as i-RID-ee-em) is a hard and brittle metal represented by the chemical symbol Ir. It is the least reactive …

  8. Iridium: What it Is, Applications, Example - Investopedia

    Jul 19, 2026 · Iridium is a rare and expensive corrosion-resistant metal. Discover why iridium is used in the manufacture of aircraft, …

  9. Iridium - Simple English Wikipedia, the free encyclopedia

    Iridium is a metal. Like other metals in the platinum group, Iridium is a rare and expensive "noble metal" and is a transition metal. It …

  10. Iridium Element Facts - chemicool.com

    Iridium is used in making crucibles and other equipment that is used at high temperatures. It is also used to make heavy-duty …