May 14, 2009
Two spacewalkers outside space shuttle Atlantis have begun repairing and upgrading the Hubble Space Telescope as part of the fifth and final Hubble servicing mission. The first of five spacewalks planned for the mission began at 8:52 A.M. today (Eastern Daylight Time) and was expected to take six and a half hours.
Top on the agenda was removing Hubble's Wide Field Planetary Camera 2 (WFPC2), a workhorse with more than 15 years of service. Astronauts Drew Feustel and John Grunsfeld replaced WFPC2 with the new Wide Field Camera 3 (WFC3), which will cover a broader range of the electromagnetic spectrum.
Deadline: Jul 25 2013
This challenge provides an opportunity for Solvers to build a web-based or mobile “app” to explore data relationships in scholarly conte
Deadline: Aug 31 2013
Reward: $100,000 USD
The Geoffrey Beene Foundation Alzheimer’s Initiative (GBFAI) is launching the 2013 Geoffrey Beene Global NeuroDiscovery Challenge whose
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