STS-135: The final space shuttle landing

Mankind’s first landing on the Moon and stepping foot on the lunar surface occurred today in 1969 by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin.

SpaceX’s fired the engines of its Falcon Heavy rocket at launch pad 39A at 12:30 p.m. EST (1730 GMT) on Wednesday. The crucial pre-launch engine test has been repeatedly delayed since the rocket returned to the launch pad earlier this month.

With construction already underway at Kennedy Space Center’s launch pad 39A on facilities for SpaceX’s next-generation Starship vehicle, another new fixture could soon rise at the seaside launch complex to satisfy U.S. military requirements to vertically integrate sensitive top secret spy satellites with Falcon 9 and Falcon Heavy rockets.