Problem in Basic 555 Timer Circuit
I've got a few things for you to check out. 

1) your breadboard power busses are not continuous. There is a wide spot in the middle of the breadboard. The power buses break in that wide spot. 

2) color code for the LED resistor shows 500k. You say that you are using a 1k resistor. Try connecting the LED directly to the power supply via the resistor and make sure that it lights up. 

Is this a CMOS 555 chip?