Proton-K/D rockets also launched several Luna missions. Notable examples are the Luna 16 and Luna 17 missions in 1970. ... Other Briz-M failures occurred during missions in May 2014 and May 2015.

The Russian Proton-M booster, which is nearing retirement, has 115 launches, the US-made Atlas V rocket has 99 launches, and the Chinese Long March 2D rocket has 89 launches. Forever Falcon 9?

Does the proton decay? While this was a famous prediction of Grand Unified Theories (GUTS) developed in the 1970s and 1980s, experimentalists have ruled it out—or rather, put lower limits on its ...

Russia launched their Proton rocket Tuesday morning local time, carrying three satellites for the GLONASS navigation system. However, liftoff from site 81/24 at the Baikonur Cosmodrome – which ...