Around 3,000 nude swimmers took the plunge into the River Derwent in Hobart, Australia, to mark the winter solstice. The swim, which takes place at the crack of dawn, saw swimmers brave ...

Summary: The summer solstice marks the longest ... at the opposite time of year. When it is winter in the UK, it is actually summer in Australia. The sun is vital to human existence - for ...

The spring, or vernal [comma] equinox will occur during the morning of Thursday, March 20. Here's what it means.