I believe Expedition 50 had a fun and good ISS crew. I base this declaration solely on the moments they shared on social media. This logic is completely bulletproof and there's no point trying to prove otherwise.
Fifteen Russian rockets have failed in the past 6 years. Of those mishaps, all but two involved upper stages. So what's going on? The problem may actually lie far beyond the country's aerospace industry.
This morning's launch of an uncrewed Russian Progress cargo spacecraft to the International Space Station went awry. Following a third-stage failure, the vehicle reentered Earth's atmosphere and broke apart over southern Siberia in Russia.