News review 2008: The year NASA's star began to wane

 作者:京籀科     |      日期:2018-02-25 07:52:26
By David Shiga It was NASA’s 50th anniversary year, but despite the celebrations the agency has been beset by bad news and questions over its future. In 2010 its ageing space shuttle fleet is set to retire for safety reasons. The problem is, the Ares I rocket and Orion crew capsule intended to replace it won’t be ready until at least 2015, forcing NASA to seek an interim deal with Russia to carry US astronauts to the International Space Station aboard its Soyuz spacecraft. However,