SpaceX launches mega rocket, lands all 3 boosters
By MARCIA DUNN, AP Aerospace Writer CAPE CANAVERAL, Florida (AP) — SpaceX launched its second supersized rocket and for the first time landed all three boosters Thursday, a year after sending up a sports car on the initial test flight. The new and improved Falcon Heavy thundered into the early evening sky with a communication satellite called Arabsat, the rocket's first paying customer. The Falcon