It's not immediately obvious how solar lights turn light into energy. I spoke to solar panel and electrical experts about how ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

Solar-powered streetlights are illuminating a Clark County neighborhood as part of a pilot program — and it has little to do ...

A busy series of northern lights activity will soon come to a peak as the sun reaches the solar maximum stage in the coming ...

The best off-grid solar systems offer an easy ... Energy sources have different efficiencies, ranging from 10% to 90%. Solar power converts light to electricity at an efficiency of around 20% ...

The northern lights may be visible as far south as Pennsylvania, Iowa and Oregon because of a strong geomagnetic storm ...

The northern lights could be visible from 20-plus states tonight as a solar storm pushes them south. Will they be visible ...

The aurora borealis is one of the most beautiful natural spectacles on the planet, so it's worth a trip this time of year to ...

With some geomagnetic activity, there'll be a slight chance to view the northern lights in the Upper Peninsula Tuesday night.

The northern lights may be on display for some northern Midwestern states Monday, thanks to a geomagnetic storm warning.