I was on 494 on the east side of the mendota bridge. about 10:30 p.M. i was observing the planes taking off from the airport, by myself, when i noticed out of the corner of my left eye an object getting brighter and brighter until it burned out. i mean this was as illuminating as lightning. only took a few seconds but it scared me to thinking it was a bomb going off. i thought it would be on the news the next day, but i heard no mention of this odd event. how could i be the only one to have seen this? it made no noise at all.