Cape Canaveral - A US company is delaying a space station delivery mission because of a major solar flare.
Orbital Sciences's unmanned rocket, the Antares, was supposed to blast off on Thursday from Virginia with a capsule full of supplies and experiments. But on Wednesday, the company postponed the launch.
Officials for Orbital Sciences say solar particles might interfere with electronic equipment in the rocket and lead to a launch failure.
The solar flare peaked on Tuesday afternoon. But more solar disturbance is expected. Officials will decide late on Wednesday afternoon whether to attempt a Thursday launch or wait for the sun to settle down.
Nasa says the solar activity poses no threat to the six men aboard the International Space Station.