Space Shuttle Launch Delayed by Thick Clouds

Endeavour's, NASA space shuttle, start had to be postponed due to thick layer of clouds. The launch was planned at 4:39 local time at Florida, but it is slated at 4:14 on Monday.
Six astronauts were ready to launch strapped in their seats on board, but unluckily 600 ft thick layer of clouds came. The weather forecast for Monday predicts 60% chance for good weather.

The crew plans to spend 13 days in space extending room and mounting a new observation desk at the International Space Station. Endeavour is first of five last space missions before NASA's retirement.

Source: space.com