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Posts by
Editors of EarthSky
Jupiter’s moons: How to see and enjoy them
December 2026 and January 2027 are great months for seeing Jupiter's moons Io, Europa, Ganymede and Callisto with binoculars or a small telescope.
February 7, 2026
Amazing cloud streets video: See it here!
See a new video of cloud streets from off the coast of the southeastern U.S. and read more about the phenomenon here.
February 4, 2026
Full moon names of the month and by the season
Lists of common full moon names - both by month and by season - for North America. And a word about full moon names in the Southern Hemisphere.
February 1, 2026
Happy Groundhog Day! Will Phil see his shadow?
The predicted high for Punxsutawney, Pennsylvania, on February 2, Groundhog Day, is 24 degrees F (-4 C) and cloudy. Will Phil see his shadow?
February 1, 2026
The February birthstone is the purple amethyst
Are you a February baby? Here's some cool info about your February birthstone, the amethyst. Read the lore of this purple stone, a variety of quartz.
February 1, 2026
Watch for the February full moon – or Snow Moon – on February 1
The full Snow Moon will shine brightly all night on February 1-2, 2026. This February full moon will glow near the star Regulus in Leo the Lion.
January 31, 2026
Betelgeuse will explode someday, but WHEN?
Will Betelgeuse have another period of noticeable dimming? Betelgeuse will explode as a supernova someday. When it does, it'll be visible in daylight.
January 27, 2026
Astronomy Essentials
Venus in the daytime: Best ways to see it
You can spot Venus in the daytime. One of the best ways is when its near the moon. Here are the tips to help you spot the brilliant planet Venus in daylight.
January 23, 2026
Voyager 2 met Uranus 40 years ago
Voyager 2 met Uranus on January 24, 1986. The spacecraft sent data that revealed 2 new rings, 10 new moons, radiation belts, and a very unusual magnetic field.
January 23, 2026
Which Milky Way spiral arm contains our sun?
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 22, 2026
