[The stream is slated to start at 3:30 p.m. ET. Please refresh the page if you do not see a player above at that time.] SpaceX is set to launch Tuesday afternoon from California in its latest mission for NASA and satellite communications company Iridium. Elon Musk's rocket company will livestream the 3:47 p.m. ET launch from Vandenberg Air Force Base. The mission will launch using a Falcon 9 rocket, which will not return to land on the SpaceX autonomous ship which the company has in the Pacific Ocean. @SpaceX: Static fire test of Falcon 9 complete—targeting May 22 launch of Iridium-6/GRACE-FO from Vandenberg Air Force Base in California. The company is expected to attempt to catch the fairing — the bulbous nose cone on top of the rocket.

The SpaceX Falcon 9 rocket used for the third Iridium NEXT launch, set to be flown again for the fifth Iridium launch. SpaceX

SpaceX has attempted to catch the fairing after two previous West Coast launches, using a high speed boat known as "Mr. Steven." The boat has a net strung up behind it to capture the fairing and Musk said SpaceX "should be able catch it with slightly bigger chutes to slow down" its descent. "[The fairing] has onboard thrusters and a guidance system to bring it through the atmosphere intact, then releases a parafoil and our ship with basically a giant catcher's mitt welded on tries to catch it," Musk said when he shared a photo on Instagram.

High-speed SpaceX boat "Mr. Steven" in the Pacific Ocean. Instagram | Elon Musk