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Associated Press
This handout image provided by NASA, taken Sunday night, Jan. 22, 2012, shows a solar flare erupting on the Sun's northeastern hemisphere. Space weather officials say the strongest solar storm in more than six years is already bombarding Earth with radiation with more to come. The Space Weather Prediction Center in Colorado observed a flare Sunday night at 11 p.m. EST. Physicist Doug Biesecker said the biggest concern from the speedy eruption is the radiation, which arrived on Earth an hour later. It will likely continue through Wednesday. It's mostly an issue for astronauts' health and satellite disruptions. It can cause communication problems for airplanes that go over the poles. (AP Photo/NASA)

WASHINGTON — Space weather officials say the strongest solar storm in more than six years is bombarding Earth with radiation with more to come.

The radiation is mostly an issue for satellite disruptions and astronauts in space. It can cause communication problems for polar-traveling airplanes.

The Space Weather Prediction Center in Colorado observed the flare Sunday at 9 p.m. MST.

Physicist Doug Biesecker says the biggest concern is the radiation, which arrived on Earth an hour later. It will likely continue through Wednesday.

— Associated Press