• December 17, 2009
Proteus is a weird name for this world. It's the second-largest moon of Neptune, and so it's named (as are all of Neptune's moons) for deities associated with the sea.
• December 10, 2009
Welcome to the tenth post in my "Advent Calendar" -- I am opening a door each day on a different world in the solar system, and I'll be continuing to do so until New Year's Day.
Become a member of The Planetary Society and together we will create the future of space exploration.
Help power LightSail 2's journey and support the mission by entering to win a complete LightSail swag kit.