May 1 full moon is a Flower Moon and micromoon

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May 1 full moon is a Flower Moon and micromoon

The 1st May full moon happens on May 1. It'll look full on the nights before and after that, too. The 2nd May full moon - a Blue Moon - will fall on May 30-31.

John Jardine Goss

May 1, 2026

Surprise! A Jupiter-like exoplanet with water-ice clouds

A Jupiter-like exoplanet with water-ice clouds? NASA's Webb space telescope has found the 1st signs of cirrus-like clouds on exoplanet Epsilon Indi Ab.

Paul Scott Anderson

May 1, 2026

Happy May Day! Today is an astronomy holiday

Happy May Day! This annual celebration has its roots in astronomy as 1 of 4 cross-quarter days. Dancing around a maypole is a traditional May Day celebration.

Deborah Byrd

May 1, 2026

Sun activity archive for May 2026

Sun activity archive for May 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

May 1, 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.

Editors of EarthSky

May 1, 2026

Western US wildfires fewer, but more destructive

A look at western US wildfires over the past 30 years shows they are becoming less frequent. But fires that pop up are also larger and more damaging.

Kelly Kizer Whitt

April 30, 2026

5 amazing places to see migrating birds in spring

Birding during spring migration season can be particularly rewarding. Here are 5 amazing places to see migrating birds this spring.

Deanna Conners

April 30, 2026

Hercules is between 2 bright stars: Vega and Arcturus

The bright stars Arcturus and Vega can help you find the constellation Hercules and its Keystone asterism. Hercules is home to 2 fabulous globular clusters.

Deborah Byrd

April 30, 2026