The New York Times: The Hubble Space Telescope has a new, resonant date with destiny. NASA has set Sept. 11, 2008, as the target date for launching a mission intended to revitalize the telescope and keep it spaceworthy into the next decade, according to a planning document made public by nasawatch.com, an independent Web site.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.