When could the SpaceX Starship launch again?

The SpaceX Starship rockets have been grounded by the Federal Aviation Administration following the historic April 20 Texas launch that resulted in a fiery explosion, with pieces falling into the Gulf of Mexico. 

NASA's most requested photo, the ‘Blue Marble', turns 50

It’s an iconic photo of our home planet: The wispy white clouds and ice caps swirling with the blues and tans of the land and sea – all standing in stark contrast to the blackness of space. But you may not know the full story behind this unique view of Earth.