MORE SOLAR ACTIVITY: Sunspot AR1402, the source of this week's powerful M9-class solar flare, is acting up again. On Jan. 26th between 0100 UT and 0600 UT, a sequence of C-class magnetic eruptions around the active region hurled a bright coronal mass ejection over the sun's north pole, shown here in a coronagraph image from the Solar and Heliospheric Observatory:

The cloud is not heading toward Earth, at least not directly. This and future eruptions from AR1402 are unlikely to be geoeffective as the sunspot is turning away from our planet. By week's end it will be on the far side of the sun, blasting its CMEs toward planets on the opposite side of the solar system.

AURORAS OVER THE USA: The geomagnetic storm of Jan. 24th died out before night fell over North America--or did it? According to reports still trickling in, auroras were reported not only in Canada, but also in some of the lower 48 US states. Shawn Malone of Marquette, Michigan, took this picture looking north from the shores of Lake Superior:

"I got to view a slice of the aurora through a tiny opening in an otherwise completely overcast sky," says Malone. "It appeared to be a pretty decent display."

Prompted by the CME warning, Mike Hollingshead of Nebraska drove 450 miles to the Badlands National Park of South Dakota hoping to catch a glimpse of the auroras. He got more than he bargained for: "While I waited for some sign of auroras, the most amazing fireball I've ever seen blasts down. It flashed brightly and illuminated the terrain around me." Later, the auroras made a belated appearance, turning the badland sky green.

More auroras could be in the offing. A solar wind stream is heading for Earth, due to arrive on Jan. 28-29. NOAA forecasters estimate a 15% chance of geomagnetic storms at high latitudes. Aurora alerts: text, voice.