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Editors of EarthSky

Fireflies: How and why they light up

A firefly's familiar glow is caused by a chemical reaction. Why and how fireflies light up here, plus many wonderful firefly photos.
Today's Image

Lunar eclipse photos, via EarthSky’s community

The May 15-16, 2022, total eclipse of the moon is over. Now, check out these beautiful lunar eclipse photos from EarthSky's community members!

Total lunar eclipse – a supermoon eclipse – on May 15-16, 2022

A 90-minute total lunar eclipse on Sunday, May 15-16, 2022. It's seen across much of Earth, best from the Americas and western Africa.

How Pluto got its name

Eleven-year-old Venetia Burney named Pluto for a god of the underworld. The name also honored Percival Lowell, the pioneering astronomer.
Astronomy Essentials

The upcoming total solar eclipse in North America

The next total solar eclipse visible from North America will be on April 8, 2024. Find charts and learn more about eclipses here.

Partial solar eclipse of April 30, 2022

A partial solar eclipse occurs April 30, 2022. The moon's penumbral shadow will sweep across the southeast Pacific and southern South America.

Our best images of Earth for Earth Day 2022

Enjoy this collection of some of our best images of Earth. Thanks to all who contributed their amazing photos, and have a Happy Earth Day!

Mars-Saturn conjunction: Photos from friends

Mars-Saturn conjunction was April 4 and 5, 2022, in the eastern sky before sunrise. The 2 planets appeared close! And brilliant Venus was nearby. Photos here.

Milky Way season is starting! Photos here

Milky Way season begins in the wee morning hours of spring. The EarthSky community shares their first photos of the season. Enjoy these pics!

See it! Morning planets and the moon in photos

In late March of 2022, the dawn sky put on a spectular show of morning planets and the waning moon. See EarthSky community members' photos here.

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