The Security Service of Ukraine reports six new cases of Russia using depleted uranium munitions in Chernihiv, finding DU in Geran-2 drones and R-60M missiles adapted for UAVs, with radiological tests showing radiation levels about 80 times the natural background and gamma readings of 8.3–24 μSv/h; uranium-235 and uranium-238 were identified in warheads, and a war-crimes investigation has been opened. Authorities warn the public to avoid drone and missile debris and to report any finds to authorities as the investigation continues.

World· Jul 23, 2026

Facts from Wikidata (CC0). Image by Unspecified via Wikimedia Commons (Public domain).

uranium-235

isotope of uranium

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uranium-235· World · 5 sources · Jul 23, 2026Story

Depleted Uranium Used by Russia in Chernihiv Drone Attacks

World· Jul 23, 2026

Facts from Wikidata (CC0). Image by Unspecified via Wikimedia Commons (Public domain).

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About uranium-235

Uranium-235 is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exists in nature as a primordial nuclide and was discovered in 1935 by Arthur Jeffrey Dempster.

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