The new launch date, announced now (May 4), and is the newest delay for SpaceX, which originally hoped to loft the Dragon capsule on its debut journey to the space station on April 30.
Last week, the Hawthorne, Calif.-based Corporation postponed the launch to May 7 to permit more time for flight software checks. Yesterday, SpaceX officials said the May 7 date was improbable, but kept open a choice for a May 10 takeoff.
"SpaceX is requesting a May 19th launch goal with a endorsement on May 22 from the Cape Canaveral Air Force Station," SpaceX officials announced in a Twitter update today.
The newest setback pushes the Dragon launch well into May, meaning it will launch on the heels of a Russian Soyuz spaceship transport three new crewmembers to the International Space Station.
That Soyuz spacecraft will discharge off from Kazakhstan on May 14 and arrive at the space station on May 17.
NASA astronaut Joe Acaba and Russian cosmonauts Gennady Padalka and Sergei Revin travel the Soyuz to the station to connect three other crewmates already aboard.