Astronomy Picture of the Day . APOD: 2009 April 6 The International Space Station Expands Again . 6.04.2009 . ... In a recently completed mission, the Space Shuttle orbiter Discovery visited the ISS and added components that included a new truss and new solar panels. Star Party on Planet Earth . ... The planetwide star party is part of 100 Hours of Astronomy (100HA), a project of the International Year of Astronomy 2009. ... 100 Hours of Astronomy Begins . ... First, a new truss was added. ...