Despina is a tiny moon of Neptune. A mere 148 kilometers across, diminutive Despina was discovered in 1989, in images from the Voyager 2 spacecraft taken during its encounter with the solar system's most distant gas giant planet. But looking through the Voyager 2 data 20 years later, amateur image processor and philosophy professor Ted Stryk discovered something no one had recognized before — images that show the shadow of Despina in transit across Neptune's blue cloud tops.
For the first time in history, scientists are witnessing the formation of a new moon in our solar system. NASA's Cassini spacecraft has detected a new moon forming in the edge of Saturn's rings. Astronomers around the world are amazed about this incredible find, which they have named Peggy.*
3D printing has the potential to go places, like the moon for instance. The European Space Agency (ESA) has commissioned several architecture firms to see if buildings can be 3D printed on the moon using lunar soil.