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A wondrous star has grown to be a major symbol of Christmas around the world. But what was it, really?
At the North and South Poles, sunrise comes at the spring equinox, noon at the summer solstice, sunset on the autumn equinox and midnight at the winter solstice.
December has two birthstones, turquoise and zircon.
Many believe that turkey is high in tryptophan, which causes that drowsiness you feel after a big Thanksgiving meal. True?
Jupiter’s gravity slings long-period comets out of harm’s way, while nudging some asteroids closer to Earth. And, in 1770, Jupiter took aim on Earth – but missed.
Supervolcanoes – massive eruptions with potential global consequences – don’t appear to follow the conventional volcano mechanics, say researchers.
Over its lifetime of about 25 years, an Arctic Tern can fly a million kilometers – nearly three times the distance from the Earth to the moon.
A big El Niño is developing in 2015, say scientists. This NASA video explains El Niño and its impact on the marine food web.
November’s birthstone, the topaz, was thought to have the power to cool boiling water, as well as excessive anger.
What if an advanced civilization could collect all of the energy emitted by its star?
See moon and Regulus before dawn
Have you seen Venus?