Eight months after the LightSail test mission ended with a successful solar sail deployment and fiery plunge into Earth's atmosphere, the program's successor spacecraft is deep into system testing, preparing for its day in the sun.

Now, the loaf of bread-sized CubeSat has a new designation: LightSail 2.

"Many series of spacecraft have used the convention of program name followed by a sequential number—for example, the Mariner line of spacecraft, Voyagers, and the Apollo program," said Dr. Bruce Betts, director of science and technology for The Planetary Society. "The LightSail program will now follow in this storied tradition."

To celebrate the name change, The Planetary Society has released a new video showing footage from a late January sail deployment at Cal Poly San Luis Obispo. In it, engineers carefully attend to the spacecraft as it unfurls four, Mylar sails into a kite-like pattern.