Bill Nye and Planetary Society set to ride a sunbeam with LightSail 2 Solar Sail
By Doris Elin Salazar
June 24, 2019, 9:47:18 PM EDT
This Monday (June 24), the nonprofit organization The Planetary Society will launch LightSail 2, the first spacecraft propelled solely by sunlight, in a mission made possible by crowd-funding, officials said.
While it won't be the first spacecraft to successfully use a solar sail at some distance from Earth — that honor goes to the Japanese spacecraft Ikaros, which launched in 2010 — it is an important extension of that technology. The Planetary Society has twice attempted testing solar sailing in the past. LightSail 2's predecessor, a test mission called LightSail, launched May 20, 2015. Ten years prior, the organization had launched a lightsail dubbed Cosmos 1, but it was lost due to a rocket failure.
For Bill Nye, science communicator and CEO of The Planetary Society, the LightSail 2 mission taps into a long-held dream, inspired by his time spent 42 years ago sitting in Carl Sagan's classroom and listening to him talk about solar sailing, Nye said during a media teleconference held yesterday (June 20).
Like a sailboat, the spacecraft is propelled by pressure; in the upcoming LightSail 2 demonstration test in low-Earth orbit, engineers want to see if a spacecraft can be propelled by the pressure of photons (particles of electromagnetic radiation) emanating from the sun.
To be pushed along by this solar wind, the core body of the LightSail 2 spacecraft — which is about the size of a loaf of bread— will release a 344-square-foot (32-square-meter) solar sail to surf in space.
"The key thing with Lightsail 2 is trying to demonstrate, for the first time, if you can do solar sailing with a small satellite; that it is viable, that we can control solar sailing," Bruce Betts, chief scientist and LightSail 2 program manager, said during the teleconference.
More Weather News
Weather News - July 18, 2019, 12:20:45 PM EDT
Severe thunderstorms are expected to sweep across parts of Europe for the start of the weekend.
Weather News - July 18, 2019, 1:44:35 PM EDT
Washington, D.C., will feel like Death Valley on Saturday as some of the hottest weather in years moves in, and AccuWeather's latest forecast shows when the sweltering heat wave will break.
Weather News - July 18, 2019, 1:32:42 PM EDT
After drenching the Philippines and Taiwan, Tropical Storm Danas will now bring the risk of flooding northward across eastern Asia.
'Hot weather is dangerous and can kill:' City officials urge residents to prepare for grueling heat wave
Weather News - July 18, 2019, 12:30:46 PM EDT
Ahead of the heat wave that will envelop the eastern two-thirds of the United States, officials in major metro areas began urging residents to stay cool and avoid extended time outdoors.
Weather News - July 18, 2019, 9:11:35 AM EDT
"I rarely see criticism like this directed toward my male counterparts," she said after sharing the viewer's cringeworthy comment with the public.
Weather News - July 18, 2019, 1:51:34 PM EDT
The southeastern United States will endure drenching and locally damaging thunderstorms erupting daily into the weekend
Weather News - July 17, 2019, 4:05:32 PM EDT
The upcoming hot weather figures to impact cooling costs in much of the U.S.
Weather News - July 17, 2019, 2:50:10 PM EDT
AccuWeather RealFeel Temperatures may approach dangerous levels in several cities.