LightSail, the CubeSat launched to test solar power propulsion, came back online after two days of giving mission control the silent treatment.

The Planetary Society issued a statement on Saturday:

"After a successful launch into orbit aboard a United Launch Alliance Atlas V rocket out of Cape Canaveral, The Planetary Society's LightSailTM spacecraft went silent after two days of communications. The solar sailing spacecraft test mission, a precursor to a 2016 mission, has now resumed contact after a suspected software glitch affected communications. The LightSail team will soon determine when to attempt deployment of the spacecraft's Mylar® solar sails.

"Bill Nye (The Science Guy), CEO at The Planetary Society, issued the following statement:

"'Our LightSail called home! It's alive! Our LightSail spacecraft has rebooted itself, just as our engineers predicted. Everyone is delighted. We were ready for three more weeks of anxiety. In this meantime, the team has coded a software patch ready to upload. After we are confident in the data packets regarding our orbit, we will make decisions about uploading the patch and deploying our sails- and we'll make those decisions very soon. This has been a rollercoaster for us down here on Earth, all the while our capable little spacecraft has been on orbit going about its business. In the coming two days, we will have more news, and I am hopeful now that it will be very good.'"