(CNN) -- Satellites, pagers, cell phones, and electrical grids could be
affected Friday by a powerful ejection of magnetic material from the
sun.

Space weather forecasters say the coronal mass ejection, or CME, was
detected Wednesday morning at 3 a.m. EDT. It is expected to reach Earth
about 3 p.m. EDT Friday, and its effects could last 12 to 18 hours.