Space Shuttle Columbia Breaks Apart upon Reentry over Texas

and lets us know about this tragedy via a story over at CNN.com:

"The space shuttle Columbia, with seven astronauts aboard, broke up as it descended over central Texas today before a planned landing at Kennedy Space Center in Florida. A Bush administration spokesman said the shuttle's altitude -- over 200,000 feet -- made it "highly unlikely" that the shuttle fell victim to a terrorist act."

Our condolences are with the astronauts' families.