One of many photos of space shuttle Endeavour that hit Twitter Friday, Sept. 21.

One of many photos of space shuttle Endeavour that hit Twitter Friday, Sept. 21. (Twitter / September 21, 2012)

Some had to hike up the mountain to Griffith Observatory as early as 6 a.m. with the parking lot already packed. Others took a break from work or class to snap photos with their cellphones.  The flyover of space shuttle Endeavour was, for the moment, L.A.'s biggest celebrity Friday.

-- Jason Wells, Times Community News