Starliner's crewed launch delayed once more.

The first crewed test flight of Boeing's CST-100 Starliner spacecraft has been delayed until the summer, according to NASA associate administrator for space operations, Kathy Lueders. The Crew Flight Test mission had been scheduled for late April, but the delay will allow teams to "assess readiness and complete verification work". The delay comes after pre-flight checkouts and other work, such as software testing, took longer than planned. The CFT mission will fly NASA astronauts Butch Wilmore and Suni Williams to the International Space Station for a mission scheduled to last eight days.