A big fireball plunged into a body of water near the Black Sea Tuesday last week in the city of Ordu in Turkey. Comments to the video are widely varied. Some people connect it to the Dec. 12 (12/12/12) supposed mysticism, some say it's a UFO, and others refer to other news reports that link the fireball to the meteor shower at the time.
This report shows the security cam footage and says the falling bright object was a meteorite. The scene was uploaded to YouTube with a "boom" sound effect. Naturally, a couple of users noticed the odd sound.
"LOL, I love how these people dubbed the sound in. Terminal flash and sonic booms never happen at the same time. Sonics follow way later. Great video though," writes milkywaypride99.
"Fake!!! The speed of sound is 331.3 meters per second (1,087 feet per second) in dry air at 0 degrees Celsius (32 degrees Fahrenheit). At a temperature like 28 degrees C (82 degrees F), the speed is 346 meters (1135.17ft.) per second. As you can see, the speed of sound changes depending on the temperature and the humidity; but if you want a round number, then something like 350 meters per second and 1,200 feet per second are reasonable numbers to use," writes gjonesy9.
"Read about this in an 'SPACE EVENT' in the EDIS emergency reports. S[c]ientists think it m[a]y be part of the [meteor] shower but unsure as of yet," writes Lori RNC Proctor, who also noted the ground shook after the bright object's plunge, promting hundreds of people to call emergency services for inquiries.