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Wow! Polar stratospheric clouds

Photos from the EarthSky community of brightly-colored ice clouds in Earth’s stratosphere. They began showing up at high latitudes late last week and this weekend.

January’s birthstone is the garnet

Happy birthday January babies!  Your birthstone is the garnet.

Here’s the path of 2017’s solar eclipse

This video from NASA shows the path across the U.S. of the August 2017 solar eclipse.

Earthquakes in Nevada this morning

The U.S. state of Nevada experienced several moderately strong earthquakes and multiple aftershocks, beginning just after midnight local time Wednesday morning.

Top 16 Earth images of 2016

Take a few minutes to enjoy these images of our planet taken by astronauts aboard the International Space Station.

Why pine trees smell so good

Pine, spruce, and fir trees – Christmas tree favorites – produce chemicals called terpenes, which give them their special, distinctive scent.

The water whorls of baby starfish

Video shows the beautiful and efficient mechanism that tiny starfish larvae use to swim, feed and grow.

Personal solstices

Photos from EarthSky community members around the world, showing what this week’s solstice – bringing winter to half of Earth, and summer to the other half – meant to them.

December solstice 2016 is the 21st

December solstice 2016 arrives on December 21 at 10:44 UTC. High summer for the Southern Hemisphere. For the Northern Hemisphere, the return of more sunlight!

Where noon comes only once a year

At Earth’s South Pole, high noon comes only once a year, on the December solstice. Meanwhile, the North Pole is getting its only midnight.