Winter solstice north of the equator and summer solstice south of it signals the official beginning of a new season.

The astronomical event is known as Perihelion Day when Earth reaches its closest point to the Sun during its annual elliptical orbit. This celestial occurrence is not just an interesting fact for ...

BOSTON - Winter is coming, Boston. This Saturday, Dec. 21 is the official, astronomical start of the season, otherwise known ...

The Earth will be at its closest point to the sun. This is called the perihelion and occurs each year in the first week of January. On this day, Earth is 1.6 million miles closer to the sun than ...