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takyon writes:

Drama in Low-Earth Orbit as LightSail 2 Deploys its Sails:

LightSail 2 has successfully deployed its solar sails. Shortly after 12:00 pm PST The Planetary Society tweeted that the sails were deployed, and that the spacecraft was sailing with sunlight. We can all enjoy their success and start to wonder how solar sails will fit into humanity's plans for space exploration.

[...] This is a dramatic moment for LightSail 2 and for The Planetary Society, the world's largest non-profit space organization. LightSail 2 is the third spacecraft in their LightSail program. It was launched on June 25th, and has been in orbit since then, preparing for sail deployment and sending us some sweet pictures of Earth.

[...] LightSail 2's sail is actually a system of four smaller triangular sails that make one large square when deployed. Once deployed, the sail measures 32 sq. meters, or 340 sq. ft. Once it's deployed, it can be used to raise the spacecraft's orbit, demonstrating the power and usefulness of solar sails.

[...] In some ways, the solar sail is exactly like a sail on a boat. The sail can be aimed at angles, to direct the travel of the spacecraft. If the sails are aimed directly at the Sun, the spacecraft will travel directly away from the Sun. But by tacking, or changing the angle of the sails, a spacecraft using solar sails can steer and propel itself through the Solar System and beyond.

Planetary Society Twitter feed.

Also at: The Register, NYT, and The Verge.

Previously:
Planetary Society Receiving Data From LightSail 2
One Legacy of Carl Sagan May Take Flight Next Week—a Working Solar Sail
Planetary Society's "LightSail" Solar Sail Test Launch on May 20

Original Submission