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Planetary Society's LightSail 2 Launched by Falcon Heavy
by Staff Writers
Pasadena CA (SPX) Jun 27, 2019

File illustration of LightSail 2 deployed above Earth.

LightSail 2 is officially in space! The Planetary Society's solar sail CubeSat lifted off from Kennedy Space Center, Florida, on 25 June at 02:30 EDT (06:30 UTC). The late-night launch came courtesy of SpaceX's triple-booster Falcon Heavy rocket, which was carrying 24 spacecraft for the U.S. Air Force's STP-2 mission.

Launch was originally scheduled to occur at 23:30 EDT on 24 June (03:30 UTC on 25 June). SpaceX delayed the liftoff time by 3 hours to complete additional ground system checkouts.

During its ride to orbit, LightSail 2 was tucked safely inside its Prox-1 carrier spacecraft. The Falcon Heavy upper stage's payload stack released Prox-1 about an hour and 20 minutes after liftoff, at an altitude of roughly 720 kilometers. Prox-1 will house LightSail 2 for 1 week, allowing time for other vehicles released into the same orbit to drift apart so each can be identified individually. LightSail 2 deployment is set for 2 July.

"After that spectacular nighttime launch, the flight team is ready to operate the LightSail 2 spacecraft," said LightSail 2 project manager David Spencer. "We will be listening for the radio signal in a week, following the release of LightSail 2 from Prox-1."

Bruce Betts, Planetary Society chief scientist and LightSail 2 program manager, added, "After years of hard work we are ecstatic with the launch and looking forward to doing some solar sailing."

In a video message to Planetary Society members, CEO Bill Nye, said, "The SpaceX Falcon Heavy took our spacecraft up and on orbit, thanks to you. Thank you all so much. We are advancing space science and exploration. We are democratizing space. We are innovating."

About 500 Planetary Society members and supporters were on hand at the Kennedy Space Center Apollo-Saturn V Center to watch their crowdfunded spacecraft take flight. Sound from the Falcon Heavy's 27 engines rumbled through the viewing area, as the rocket blazed high into the sky before starting its arc out over the Atlantic Ocean. Both of the rocket's side boosters flew back to Cape Canaveral for upright landings, creating sonic booms that delighted the raucous crowd.

SpaceX's live feed from mission control in Hawthorne, California, followed the rocket's center booster as it attempted to land on the drone ship Of Course I Still Love You. The booster's exhaust plume briefly appeared on camera before apparently crashing into the ocean. The landing was not a requirement for mission success.

Meanwhile, the upper stage blasted on to its first stop, an orbit roughly 865 by 300 kilometers above Earth. There, it deployed several CubeSats and a small satellite before lighting its engine again and flying to a circular orbit of about 720 kilometers. Prox-1 was the first spacecraft off the rocket there.

LightSail 2 team members will soon converge at Cal Poly San Luis Obispo in California, where the spacecraft's mission control is located. Once LightSail 2 is released from Prox-1 on 2 July, the team will spend several days checking out the CubeSat's systems before commanding its dual-sided solar panels to deploy. Following that, the spacecraft's solar sails will be deployed, roughly 2 weeks in total from launch day.


Related Links
LightSail 2 mission page
Space Tourism, Space Transport and Space Exploration News


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SPACE TRAVEL
LightSail 2 set to launch next month
Los Angeles CA (SPX) May 14, 2019
The Planetary Society's LightSail 2 spacecraft is ready to embark on a challenging mission to demonstrate the power of sunlight for propulsion. Weighing just 5 kilograms, the loaf-of-bread-sized spacecraft, known as a CubeSat, is scheduled to lift off on 22 June 2019 aboard a SpaceX Falcon Heavy rocket from Kennedy Space Center, Florida. Once in space, LightSail 2 will deploy a boxing ring-sized solar sail and attempt to raise its orbit using the gentle push from solar photons. It's the culminatio ... read more

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