https://qz.com/1334164/nasa-commercial-crew-a-toxic-fuel-leak-on-boeings-starliner/

Dripping toxic chemicals fouled an attempt to test the rocket engines on a Boeing spacecraft designed to replace the space shuttle and carry astronauts to the International Space Station next year.

The anomaly validates warnings that neither Boeing nor its rival SpaceX will not be able to field operational spacecraft in time to maintain a steady flow of astronauts to the orbital lab next year, which NASA officials say could put the station in danger. The US space agency is paying the two private companies more than $6.5 billion to develop low-cost, reliable space transportation for people.