Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

“The greater the tilt in the axis, the more extreme the seasons are.” Take Mars, for example: Mars has a tilt of 25.19 degrees compared to Earth’s 23.44 degrees, and its winters can be as ...

San Francisco’s Great American Music Hall will be the home base for a three-night celebration in honor of the Grateful Dead’s ...