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Posts by
Editors of EarthSky
Meet Crux, the constellation of the Southern Cross
Crux, the constellation of the Southern Cross, is a hallmark of southern skies and contains the open cluster known as the Jewel Box.
May 24, 2026
2026 name list for Atlantic hurricanes: Is yours among them?
The forecasts for Atlantic hurricanes and tropical storms are out. And the hurricane names for 2026 are ready. What'll happen next?
May 21, 2026
Synchronous fireflies light up these national parks
The synchronous fireflies are back! These lightning bugs flash in harmony in the Great Smoky Mountains and other nearby parks from mid-May to mid-June.
May 20, 2026
Constellations and signs: What’s the difference?
What is the difference between the signs of the zodiac and the constellations of the zodiac? Astronomer Guy Ottewell illustrates and discusses this difference.
May 20, 2026
Apex of the sun: Look to Vega in May
Apex of the sun shows the direction our solar system moves through space, toward the bright star Vega in the May night sky.
May 15, 2026
The Southern Cross: your guide to due south
There's no bright star marking due south from the Southern Hemisphere. But the Southern Cross points the way.
May 14, 2026
Will the Blaze Star explode in 2026? How to see it
We're still waiting for the Blaze Star to go nova! Will it happen in 2026? Here's how to find Corona Borealis so you're ready when this star goes kablooey.
May 10, 2026
Von Kármán vortices are mesmerizing, swirling clouds
See von Kármán vortices - mesmerizing, swirling pattern of clouds - in these satellite images. These clouds form when the wind hits a barrier like a mountain.
May 8, 2026
May birthstone: The magnificent green emerald
Happy birthday, May babies! The May birthstone is the emerald, a stone once worn by royalty in ancient Babylon and Egypt.
May 1, 2026
See great pics of Comet R3 PanSTARRS from our community
Comet R3 PanSTARRS is closest to Earth on April 26. See a cool image from a sun-watching spacecraft, and these fantastic community photos.
April 25, 2026
