The silver fox is a melanistic form of red fox. Melanism is when the animal's coloring is much darker than normal. Interestingly, fox squirrels, who have brownish body fur and reddish tummy fur also have a melanistic form that resembles this.
Credit: Antony Spencer/Getty Images The aurora borealis – Kiruna, Sweden When charged particles, which flow from the sun at kph, hit the Earth’s magnetic field at the planet’s poles, they create curtains of light. Solar storms heighten the effect