No output from 556 timer
Even if the picture is not very clear I can guess you're trying to implement the classic astable circuit, using timer 2.





However, I find the following issues:


You are not connecting the reset (pin 10) to VCC (even if internally is connected to the base of a PNP transistor, so leaving it open might not cause a reset).
The LED is likely connected to the same row (unless you soldered the resistor to its cathode), but we cannot see this from the picture.
The capacitor has its negative terminal toward threshold and trigger: the negative terminal should go to GND.
Maybe is not shown, but from the picture we cannot see if you are connecting the ground (blue line) of the right part of the breadboard, to the ground of the left part of the board.