Streetlights using nanoPE are designed differently from traditional ones. Instead of directing light straight down, they are ...

Auroras are possible over the U.S. tonight (March 25) as a "moderate" geomagnetic storm hits Earth. UPDATE: The Northern ...

Although it's not an exact science ... but are not visible during daylight hours. The best way to see the stunning displays is to find a dark place, away from light pollution such as street ...