Shuttle resumes launch countdown

As of noon today, launch of the space shuttle is again underway. The countdown is at at the Return to Flight page at NASA's website. However, don't get your hopes up:

Due to concerns about the early development of showers and cumulus clouds, the chance of Kennedy weather prohibiting launch is 40 percent, according to Shuttle Weather Officer Kathy Winters. There are also concerns about crosswinds at all three Trans-Atlantic Landing sites, located in Spain and France.

The previous launch attempt was scrubbed due to fuel tank sensors giving inaccurate readings. This was due to issues with grounding wires. It's amusing what sounds like a trivial problem becomes more complicated sounding by calling it an "issue".

Though it's a graphically-intensive site, Space.com has more information in their article:

“Discovery is in excellent shape,” said NASA test director Pete Nickolenko during a pre-launch status briefing here at Kennedy Space Center (KSC). “We are all very confident that all of the engine cut-off sensors will work as they’re designed to in this next launch attempt.”