LightSail 2 is changing its orbit using only the power of sunlight. The Planetary Society announced this week that their LightSail 2 solar sail is working well, and actually raising the orbit of the spacecraft as it travels around the Earth. According to mission managers, they've been able to raise the orbit of the spacecraft by about 2 kilometers at the high point of its orbit. Unfortunately, they'll only be able to go for about a month before the sail dips into the atmosphere at the low point of its orbit and it crashes.

At his appearance at the American Writers Museum in Chicago, John Scalzi said that it is important that science fiction writers include religion in their universes, "When 5 billion people out of 7 billion very strongly have professed religious belief of some sort or another, to ignore it, minimize it or just say it doesn't matter is foolish," he said.