By Mark Memmott

The first test of the rocket that could one day replace NASA's space shuttles has been postponed.

High winds and a nearby rain storm at the Kennedy Space Center in Florida just forced NASA to call off today's planned launch.

When it does fly, the Ares I-X, at 327 feet, will be the tallest rocket ever launched. There may be another attempt to launch tomorrow.

categories: Science

11:22 - October 27, 2009