This story was updated at 10 p.m. ET.
An old NASA satellite fiery death plunge back to Earth tonight (Sept. 23) may be visible to some lucky skywatchers in Southern California, weather permitting, according to the latest prediction from a nonprofit space industry firm.
The 20-year-old spacecraft, called the Upper Atmosphere Research Satellite, could create a spectacular fireball over Southern California that would be visible between 7:40 p.m. and 7:50 p.m. PDT, according to the El Segundo-based Aerospace Corporation.
"The UARS reentry will be a spectacular sight, if you are lucky enough to witness it," said Bill Ailor, director of Aerospace's Center for Orbital and Reentry Debris Studies, in a statement tonight. [Photos of NASA's Huge Falling Satellite UARS]
If the UARS satellite's fiery fall is visible, will pass from the southwest to the northeast of the southern sky, Aerospace officials said. The potential for falling debris "poses little risk to human life and property," they added.