Spooky Auroras

The heavens are getting into the spirit of Halloween.

A solar wind stream is buffeting Earth's magnetic field, stirring up ghostly auroras around the Arctic Circle.

High-latitude sky watchers should be alert for them tonight.

Meanwhile, Venus and the crescent Moon are converging for a sunset sky show on Halloween itself. The bright pair will be widely visible even from light-polluted cities.

Check http://spaceweather.com for photos and sky maps.