Notably, every 18.6 years, during the northern lunar standstill, the moonrise is aligned with the sites two rock pinnacles, as well as during the summer and winter solstices, and the fall and spring equinoxes.

WHITEHOUSE: The White House

Although the seasonal equinoxes and solstices seem to divide the year into four equal parts, when you count the days of what we officially call winter, spring, summer and fall, each season is different, says Bing Quock, acting chairman of the Morrison Planetarium at the California Academy of Sciences.

NPR: Not All Seasons Are Created Equal

It would offer creative leasing, letting you drive a Chevy Corvette during the summer, a Cadillac Seville STS during the fall and spring and a GMC Yukon during the winter.

FORBES: Digital rules