Bob Behnken

SpaceX delivered two astronauts to the International Space Station for NASA on May 31, following up a historic liftoff with an equally smooth docking in yet another first for Elon Musk's company.

After nearly two decades of effort, Elon Musk's aerospace company, SpaceX, successfully launched its first two people into orbit, ushering in a new age of human spaceflight in the United States.

SpaceX pressed ahead with its second attempt to launch astronauts for NASA- a historic first for a private company- but more stormy weather threatened more delays.

Elon Musk's company came within 17 minutes on May 27 of launching a pair of NASA astronauts for the first time in nearly a decade from the U.S., before the threat of lightning forced a delay.

The launch of a SpaceX rocket ship with two NASA astronauts on a history-making flight into orbit was called off with less than 17 minutes to go in the countdown on May 27 because of thunderclouds and the risk of lightning.
Liftoff was rescheduled for Saturday afternoon.