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Editors of EarthSky
Meet Pollux: The brighter twin star of Gemini
Pollux, the brightest star in the constellation Gemini, blazes in a golden light next to its bluish-white heavenly twin, Castor.
February 20, 2024
Castor is 6 stars in one
The bright blue-white star Castor, in the constellation Gemini, appears to our eyes as a single star. But it’s really a family of 6 stars.
February 20, 2024
Lunar New Year 2024: The Year of the Dragon
The Lunar New Year falls on February 10, 2024 (in Asia). It coincides with the date of new moon and signals the start of the Year of the Dragon.
February 9, 2024
Groundhog Day is February 2. Phil says early spring!
It was a chilly 39 degrees F (3.8 C) this morning in Punxsutawney, PA, when Phil predicted an early spring. Happy Groundhog Day!
February 2, 2024
Meteor shower guide 2024: Up next the April Lyrids
We're in a meteor shower drought until the April Lyrids. They'll be best overnight on April 21-22. Your 2024 meteor shower guide here.
February 1, 2024
Cassiopeia and the Big Dipper in January skies
Watch the celestial clock and its two great big hour hands - Cassiopeia and the Big Dipper - as they swing around the North Star every night!
January 23, 2024
Which spiral arm of the Milky Way is ours?
Where do we live in the Milky Way galaxy? We lie between the major arms in a smaller spiral arm known as the Orion Arm. See diagrams here.
January 5, 2024
January birthstone: The colorful garnet gemstone
Garnets, the January birthstone, are often thought to be red gemstones. But they also come in yellow, green, orange, brown and black.
January 3, 2024
Earth at perihelion – closest to sun – on January 2-3
Every year in early January, Earth reaches its closest point to the sun in an event called perihelion. It occurs during winter for the Northern Hemisphere.
January 2, 2024
Today in science: Luna 1, 1st spacecraft headed to moon
Some historians believe the Soviet spacecraft Luna 1 was supposed to hit the moon. It didn't. However, it was the first earthly craft to sweep past the moon.
January 2, 2024
