A
report says that early analysis of low-frequency infrasound data sound-wave recordings suggests that the space shuttle Columbia depressurized and blew apart in a single explosion near Lubbock, Texas.
The report says that a preliminary analysis was posted earlier this week on a Southern Methodist University (SMU) web site and then removed. NASA has impounded the information, along with similar recordings from other infrasound stations in the western United States.
Infrasound is low-frequency sound, waves at 20 hertz or lower – just below the threshold of human hearing. The report said that it took about 30 minutes for the sound waves to travel the distance from the shuttle to the infrasound array near Lajitas in the Big Bend region, and to another in Nevada.
I believe the main purpose of the infrsound network is to plot lightning strikes over the entire USA.
