Topic: Paul Sutherland
Proposed by British scientists as a joint effort of NASA and the European Space Agency, the mission would offer the first close-up view of Uranus in 25 years.
Sextillion: Astronomers now say there are 300 sextillion stars. That's 200 sextillion more than previously thought.
Children are being given the chance to name their own minor planet in a competition to mark the 80th anniversary of the discovery of Pluto. Space scientists' ruling body the International Astronomical Union has promised to consider the winning entries for real worlds now being discovered.
Muni issues grow in turbulent times, offering higher yields.