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History of global temperature 1880-2016
Take 14 seconds to watch the change in Earth’s surface temperature from 1880 through 2016.
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Circumpolar stars never rise or set
Circumpolar stars always reside above the horizon, and for that reason, never rise or set. All the stars at the Earth’s North and South Poles are circumpolar. Meanwhile, no star is circumpolar at the equator.
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Humans Almost Drove These 6 Animals To Extinction. But We Saved Them Instead. | The Huffington Post
These conservation success stories remind us that the mass extinction of the world’s species doesn’t have to be inevitable.
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Opportunity Rover celebrates 13 years on Mars
On January 24, 2017, NASA’s Opportunity rover celebrated 13 Earth years exploring Mars. She’s officially a teenager. Here are 6 ways she’s behaving like one
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See a faint star cluster near bright Sirius
Tonight, look for the sky’s brightest star, Sirius, and the faint star cluster near it. Sirius is easy to see because it’s so bright and because the three prominent Belt stars in the constellation Orion – three stars in a short, straight row – always point to it.