Russia Grounds Proton Space Rockets For 3.5 Months Over Faulty Engines Following the crash of the Progress MS-04 in December, Russia is grounding all its Proton-M rockets. Investigations at the plant where Proton-M and Soyuz rocket engines are built revealed quality and safety issues. by Allan Adamson
Science Russian Proton rocket carrying communications satellite destroyed after lift off by Alexander Saltarin