PARIS (ESA PR) — A tiny sail made of the thinnest material known – one carbon-atom-thick graphene – has passed initial tests designed to show that it could be a viable material to make solar sails for spacecraft.
Light sails are one of the most promising existing space propulsion technologies that could enable us to reach other star systems within many decades.
PASADENA, Calif., June 7, 2015 (Planetary Society PR) — After 19 days on orbit, data indicate that The Planetary Society’s LightSail™ spacecraft deployed its Mylar® solar sail in space. More information will be downloaded, analyzed and publicized in days to come, including possible images. A post-deployment press conference will occur following an initial data analysis period.
UPDATE: Ground controllers have received data packets from the satellite. They’re now analyzing them and planning their next move, which could be deployment of the solar sail.
It’s not looking good again for The Planetary Society’s LightSail spacecraft. After losing communications with the ground and then regaining it, the experimental CubeSat again fell silent after what appeared to be the successful deployment of its solar panels.
In an e-mail summary sent this afternoon, mission manager David Spencer said before contact was lost, LightSail’s batteries did not appear to be drawing current from the solar arrays; nor were they properly shunting power to the spacecraft’s subsystems.
“Following solar panel deployment,” he wrote, “it was noticed that all of the battery cells were drawing near zero current. This indicated that the batteries were likely in a fault condition stemming from the solar panel deployment event.”
Unless controllers can get the spacecraft online, it will not be possible to deploy the spacecraft’s solar sail.
WASHINGTON, DC (NASA PR) — With help from NASA, a small research satellite to test technology for in-space solar propulsion launched into space Wednesday aboard an Atlas V rocket from Cape Canaveral Air Force Station, Florida, as part of the agency’s CubeSat Launch Initiative.
The Planetary Society’s LightSail satellite is a technology demonstration for using solar propulsion on CubeSats, a class of research spacecraft called nanosatellites. Using the momentum transferred from solar photons as they strike a large, thin, reflective sail would allow a spacecraft to accelerate continuously using only the sun’s energy. NASA is considering the use of solar sails on future exploration mission secondary payloads, and data from this mission will advance understanding of this form of propulsion.
CAPE CANAVERAL AIR FORCE STATION, Fla., May 20, 2015 (ULA PR) – A United Launch Alliance (ULA) Atlas V rocket successfully launched the Air Force Space Command 5 (AFSPC-5) satellite for the U.S. Air Force at 11:05 a.m. EDT today from Space Launch Complex-41.The rocket carried the X-37B Orbital Test Vehicle or OTV, a reliable, reusable, unmanned space test platform for the U.S. Air Force.
“ULA is honored to launch this unique spacecraft for the U.S Air Force. Congratulations to the Air Force and all of our mission partners on today’s successful launch! The seamless integration between the Air Force, Boeing, and the entire mission team culminated in today’s successful launch of the AFSPC-5 mission” said Jim Sponnick, ULA vice president, Atlas and Delta Programs.
The U.S. Air Force’s mysterious X-37B spacecraft and The Planetary Society’s LightSail prototype will share a ride into space from Cape Canaveral on Wednesday aboard an United Launch Alliance (ULA) Atlas V booster. NASA will also conduct a materials sciences experiment aboard the X-37B.
The launch window opens at 10:45 a.m. EDT and runs until 2:45 p.m. EDT. ULA will webcast the launch at http://www.ulalaunch.com.
The weather forecast shows a 60 percent chance of favorable weather conditions for launch.
PASADENA, Calif., March 9, 2015 (Planetary Society PR) – The Planetary Society’s privately funded LightSail spacecraft has arrived in Cape Canaveral, Fla., where it will be integrated with an Atlas V rocket scheduled to launch no earlier than May 6. The spacecraft is part of a secondary payload dubbed ULTRASat, which will fly aboard the U.S. Air Force mission AFSPC-5.
Bill Nye (The Science Guy), CEO at The Planetary Society, issued the following statement:
Our LightSail cubesat passed every one of its tests and has been loaded into its launcher mechanism. I’m naturally happy and excited, but I admit, a bit nervous. We’ve been working to get a solar sail into space since I joined The Planetary Society Board in 1997. It’s quite a milestone. Deep breath, no turning back now, this baby’s on its own now. Here we go…
For complete coverage of the LightSail test flight, as well as the second LightSail mission scheduled for 2016, visit sail.planetary.org.
Celebrating 35 years, The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world’s citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society’s Board, serves as CEO.
PASADENA, CA (Planetary Society PR) – The Planetary Society today announced the first of its LightSail spacecraft will embark on a May 2015 test flight. Funded entirely by private citizens, the solar sail satellite will hitch a ride to space aboard an Atlas V rocket from Cape Canaveral Air Force Station in Florida. The mission will test LightSail’s critical functions, a precursor to a second mission slated for 2016. That second flight will mark the first controlled, Earth-orbit solar sail flight and ride along with the first operational launch of SpaceX’s Falcon Heavy rocket.
PASADENA, Calif. (Planetary Society PR) — The Planetary Society, the world’s largest and most influential space interest group, announces that its LightSail solar sail spacecraft will reach space on a SpaceX Falcon Heavy launch in 2016. The announcement was made during a live webcast on July 9th.
“It’s fantastic that at last we have a launch date for this pioneering mission,” said Planetary Society CEO Bill Nye The Science Guy. “When I was in engineering school, I read the book about solar sailing by my predecessor, Society co-founder Louis Friedman. But the dream of sailing on light alone goes back much further.”
NASA announced this week that the Planetary Societyâ€™s LightSail-1 solar sail mission is on their short list for upcoming launch opportunities. The missions selected are Cubesats destined for piggyback launches as part of NASA’s CubeSat Launch Initiative.
â€œThis is great news,â€ said Louis Friedman, Program Director for LightSail-1. â€œOur spacecraft will be ready this summer, and we are hoping for the earliest launch possible.â€
NASA’s Nanosail-D is scheduled to launch on Friday — and we wish them well. Nanosail is an innovative development by NASAâ€™s Marshall Space Flight and Ames Research Centers, and in many ways is the inspiration for the Planetary Societyâ€™s LightSail spacecraft, scheduled to be ready early in 2011 to carry out the first solar-sail propelled flight in Earth orbit.
The spacecraft is the same size and approximate mass as our own Lightsail-1, although Nanosailâ€™s sail is smaller (3 meters on a side, instead of 4.5 meters). Nanosail will be pioneering the use of the Air Force Research Labâ€™s TRAC booms, which we will also be using on Lightsail-1. We’ll be interested in evaluating their deployment experience and understanding any implications to our own design.