After much anticipation, Microsoft Research today released a new, free online tool designed to open up the world of astronomy to the masses. Microsoft describes the WorldWide Telescope as a "Web 2.0 Visualization Software Environment" - but don't worry, the tool is easier to use than it is to define.

Today marks the 18th anniversary of the launch of the Hubble Space Telescope, and to celebrate, NASA has released a collection of 59 new Hubble images (under the fantastic title "Galxies Gone Wild!") that present galaxies in all of their volatile wonder.

For a gallery of Hubble's most incredible images, click "View Photos" at left The terrific thing about NASA chief Michael Griffin's decision to launch a Hubble servicing missionthe telescope's fifth since 1990isn't simply that the spacecraft will be able to limp along for another four years. After astronauts visit Hubble on this latest mission (set to launch no earlier than May 2008), the telescope will be more powerful than it has ever been, thanks to some incredible new instruments being tested now.

The beloved Hubble Space Telescope may get a new lease on life after all. Late last summer, NASA nixed its controversial decision to retire the aging instrument and instead will consider asking Congress for roughly $1 billion to plan and launch a robotic repair mission by late 2007.


The leading contender for a Hubble house call: a 3,664-pound, two-armed robot named Dextre. The robot, made by MD Robotics in Brampton, Canada, is about