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Today in science: Johannes Kepler

While trying to solve the mystery of the planets’ motions, Johannes Kepler made several false starts, then ultimately discovered 3 profound truths.

Bailey the unknown reindeer

Like dogs? Celebrate Christmas? Don’t miss this classic video Christmas greeting from Bailey the unknown reindeer.

Was the Christmas Star real?

Was there really a star that led the 3 wise men to Bethlehem?

Winter solstice at Stonehenge

Stonehenge is carefully aligned on a sight-line that points to the winter solstice sunset, but, this year as in most recent years, the revelry began before sunrise.

Today in science: Wright brothers succeed

Check out one of the world’s most famous early photos. It shows the Wright brothers and the 1st true airplane on December 17, 1903.

How likely is a white Christmas?

Are you dreaming of a white Christmas? Here’s the historic probability for one, in the U.S.

Did Ice Age hunters burn Europe’s forests?

Large-scale forest fires started by prehistoric hunter-gatherers are probably the reason Europe is not more densely forested, says a new study.

Today in science: Tycho Brahe

Tycho Brahe is known for his partying, his prosthetic nose, and for being one of the greatest astronomers of all time.

1st test of new theory of gravity

Eric Verlinde’s new theory of gravity – an alternative to Einstein’s theory – eliminates the need for dark matter. To test it, astronomers measured gravity around 33,000 galaxies.

Parts of brain sleep, wake up, all day

New research finds that small regions of your brain cycle in and out of sleep, even when you’re awake.