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Virgin Orbit delivered seven small CubeSats for NASA, the U.S. military, Spire, and the Polish company SatRevolution into orbit Thursday with its air-launched rocket after release from a jumbo jet off the coast of California.

Virgin Orbit aims to build on two successful small satellite launches last year with another flight of its air-dropped rocket Thursday off the coast of California, this time carrying seven mini-payloads into low Earth orbit. The company’s Boeing 747 carrier aircraft departed Mojave Air and Space Port and released the LauncherOne rocket to begin its climb into orbit at 2:52 p.m. PST (5:52 p.m. EST; 2252 GMT).

Tests are beginning this week at Cape Canaveral Space Force Station for the first flight of Astra’s small satellite launcher from the Florida spaceport, following the company’s successful November demonstration mission from Alaska.

Still cruising toward its operating orbit nearly a million miles from Earth, the $10 billion James Webb Space Telescope completed a transformation into its final dimension Saturday with the last of some 50 post-launch deployments, the unfolding of the observatory’s 21.3-foot (6.5-meter) primary mirror. Many engineers considered it the most complicated series of spacecraft deployments ever attempted.

One of the two wings holding three of the James Webb Space Telescope’s gold-coated mirror segments folded into place Friday, setting the stage for positioning of the other wing Saturday to complete the nearly $10 billion observatory’s major deployments.