Scientists can track the solar cycle is by counting the number of 'sunspots' – dark areas on the sun's surface – and when exactly they appear, mostly using satellites. The Northern and ...

Depending on local conditions, the best views are expected in Alaska and along the northern border in Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin and Michigan ...

There may be more northern lights – or aurora borealis – sightings this spring. As we near the spring equinox, also known as the vernal equinox, on March 20, the Earth's magnetic field and ...