seasons

Scorching alien planet takes seasons to an extreme

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Scientists got a close look at an extreme case of seasons thanks to a retired NASA telescope. Researchers used NASA’s Spitzer Space Telescope to film a year on an exoplanet called XO-3b. Conveniently, a year on this world lasts only three Earth days. Within that time, the exoplanet experiences a one-day-long summer and a two-day-long … Read more

The Convoluted History of The Modern Western Calendar

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For something that’s meant to lend order to our lives, the modern Western calendar has a messy history. The mess, in part, comes about because of the difficulty of coordinating the orbits of celestial bodies with the cycles of day and night, and the passage of the seasons.   The year measured by the earth’s … Read more