* Astronomy

A university lecturer and nuclear scientist has been killed in a car explosion in north Tehran.
Mostafa Ahmadi-Roshan, an academic who also worked at the Natanz uranium enrichment facility, and another unidentified person were killed in the attack.
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A nuclear scientist who supervised a department at the Natanz uranium enrichment facility has been killed by a magnetic bomb placed on his car by two assailants in northern Tehran, Iranian media reported.
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