Launch of New NASA Telescope to Replace Hubble Observatory is Being Postponed

NASA technicians had been preparing to attach the James Webb Space Telescope to a launch vehicle adapter when a clamp band suddenly loosened, jolting the delicate observatory. This has delayed the launching of the new telescope to replace the famed Hubble observatory.

The European Space Agency said the telescope will now launch aboard an Ariane 5 rocket no earlier than Dec. 22 — four days after the original planned liftoff date of Dec. 18.