SpaceX's Falcon 9 rocket grounded for the 3rd time in 3 months following 'off-nominal' crash-landing in the ocean

The U.S. Federal Aviation Administration is investigating the uncontrolled reentry of part of a Falcon 9 rocket that delivered passengers to the International Space Station in a capsule that will return stranded astronauts Butch Wilmore and Suni Williams to Earth next year.