Nasa has conducted a test firing of the engines for its giant Space Launch System (SLS) lunar rocket, although the tests were shut down earlier than planned, the space agency said.The “hot-fire” test on Saturday at the Stennis Space Centre in Mississippi was supposed to last a little over eight minutes – the time the engines would burn in flight – but they shut down just over a minute into the burn.“Teams are assessing the data to determine what caused the early shutdown, and will determine a…

This post was originally published on South China Morning Post.