The $7bn (£4.2bn) Space Launch System is scheduled to blast off for a test launch by November 2018.
A walkway designed to make elderly volunteers lose their footing could help to find a way to stop the infirm from falling over.
The family of the man accidentally killed by a nine-year-old at an Arizona gun range says their prayers are with the girl.
Airlines are now on red alert, the highest possible warning, because a new eruption has made large ash emissions "likely".
According to reports in the US, Ms Rivers became unwell during a throat operation and at one point her heart stopped beating.
A six-minute video is released by Islamic State militants which purportedly shows the killing of a Kurdish peshmerga fighter.
The fashion taste of the world's most powerful man sparks jabs, memes and quips, from 'The Audacity of Taupe' to 'Yes We Tan'.
The magician tells Sky the picture circulating on the internet is from an earlier rehearsal when he had to wear a safety line.
The man is taking his wife to hospital when she goes into labour, leading to an emergency - and successful - delivery on the road.
Research from Harvard traces the possible origins of the outbreak, amid fears that mutations could hinder treatment of the virus.