Sun Sentinel Palm Beach Edition

Mystery space plane goes back into orbit

- By Marcia Dunn

It's the sixth flight of an X-37B, a solar-powered plane flown by remote control. Officials aren’t stating the mission’s purpose.

CAPE CANAVERAL — The U.S. military’s mystery space plane rocketed into orbit again Sunday, this time with an extra load of science experiment­s.

It’s the sixth flight of an X-37B, a solar-powered plane that’s flown by remote control without a crew.

Officials aren’t saying how long the spacecraft will remain in orbit this time or the purpose of the mission. But a senior vice president for X-37B developer Boeing, Jim Chilton, noted each mission has been progressiv­ely longer.

The previous mission lasted a record two years, with a touchdown shrouded in darkness last year at NASA’s Kennedy Space Center.

The winged spacecraft resembles NASA’s old shuttles, but is just one-quarter the size at 29 feet long. The one just launched features an extra compartmen­t for experiment­s, including several for NASA and the U.S. Naval Research Laboratory, making it the biggest science load yet for an X-37B.

The Air Force has two of these reusable space planes. Their home base is a former space shuttle hangar at Kennedy.

“You could say that the X-37B stands on the shoulders of the space shuttle,” Chilton said. “From a common shape to a common home.”

Since the first flight in 2010, the secretive space planes had logged a combined 2,865 days in orbit as of Sunday.

“If you add up all the missions, just under eight years in orbit and 1 billion miles, so a lot of traveling by this machine,” Chilton said during the launch broadcast.

Delayed a day by bad weather, this marked just the second rocket launch for the newly establishe­d Space Force. In March, it hoisted a national security satellite.

United Launch Alliance, which provided the Atlas V rocket, declared success 11⁄2 hours after liftoff. It dedicated Sunday’s launch to the health care workers and others who are working on the front lines of the pandemic.

The company said it followed health advice for the launch. Many of the flight controller­s wore masks and were spread out.

Precaution­s were less evident along area causeways, where spectators parked to watch the Atlas soar. Thick, low clouds spoiled the show.

The Cape Canaveral Air Force Station has an exceptiona­lly fast turnaround for its next launch.

Before dawn Tuesday, SpaceX will attempt to launch another batch of its Starlink satellites for global internet service. It will be SpaceX’s last flight before its first astronaut launch, scheduled for May 27 from next-door Kennedy Space Center.

“You could say that the X-37B stands on the shoulders of the space shuttle. From a common shape to a common home.” — Jim Chilton, senior vice president for X-37B developer Boeing

 ?? JOHN RAOUX/AP ?? A United Launch Alliance Atlas V rocket lifts off Sunday from the Cape Canaveral Air Force Station.
JOHN RAOUX/AP A United Launch Alliance Atlas V rocket lifts off Sunday from the Cape Canaveral Air Force Station.

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