Tallahassee ? Stormy weather Sunday afternoon again forced NASA to scrub the launch of shuttle Discovery.

The decision was made more than two hours before the shuttle and its seven astronauts were set to blast into space.

The astronauts swiftly abandoned the orbiter and returned to their quarters as lightning warnings blared through the Kennedy Space Center at Cape Canaveral.

The next attempt will come at 1:38 p.m. CDT Tuesday, giving NASA a chance to avoid discouraging weather forecasts for today, top off the shuttle’s fuel cells and allow the astronauts and ground crew to rest.

Similar conditions forced NASA to scrub Saturday’s first attempt to launch Discovery.

When Discovery finally reaches space, it will deliver a new crewman – along with supplies and equipment – to the International Space Station.