NASA主页发布的紧急公告

NASA Television reported Saturday morning that communications were lost with Shuttle Columbia at approximately 8 a.m. EST over north-central Texas. Columbia was at approximately 200,000 feet altitude. Debris has been sighted in north central Texas. Search and rescue has been dispatched in Dallas-Fort Worth area.
News media covering the Space Shuttle should stay tuned to NASA Television, which is broadcast on AMC-2, transponder 9C, C-Band, located at 85 degrees West longitude. The frequency is 3880.0 MHz. Polarization is vertical and audio is monaural at 6.8 MHz.

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太多人访问了，以至于打不开。内容很简单，我不翻译了。