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Japan’s Sakurajima volcano erupts, prompts alert
Japan's Sakurajima volcano erupted at about 8:05 p.m. local time today (11:05 UTC; 6:05 a.m. CDT on Sunday, July 24, 2022). So far, 51 people have evacuated.
July 24, 2022
Why do corals glow? To lure their prey
Why do corals glow? Researchers in Israel and the U.S. say they use fluorescent colors to attract prey like plankton, solving a long-standing aquatic mystery.
July 24, 2022
Pluto terrain in rainbow colors
Take a look at Pluto in this rich false-color image. The colors help to highlight the differences in the dwarf planet's terrain.
July 23, 2022
Kitt Peak update after June wildfire
A wildfire reached Kitt Peak on July 17, 2022. Kitt Peak National Observatory is now working toward restoring the site so operations can continue.
July 22, 2022
Monarch butterflies added to Red List of endangered species
Monarch butterflies are now listed as endangered on the IUCN Red List. But there are ways you can help. Read how to make a difference, here.
July 22, 2022
Webb could see biosignatures on distant planets
Astronomers hope to use the James Webb Space Telescope to detect biosignatures - signs of life - in the atmospheres of distant planets.
July 22, 2022
Mysterious pink glow in Australia … not aliens
Residents of the Australian town of Mildura thought they were being invaded by aliens Wednesday night, due to a mysterious pink glow in the sky.
July 21, 2022
Oldest galaxy yet seen by Webb Telescope
The James Webb Space Telescope imaged a galaxy that existed when the universe was just 300 million years old. It is the oldest galaxy we've ever seen.
July 21, 2022
Rocket launches can create night-shining clouds
A study shows that rocket launches can cause night-shining, or noctilucent, clouds. These are wispy, ethereal clouds found high in the mesosphere.
July 21, 2022
We love sunflowers! Your best photos
We love sunflowers at EarthSky! You can't look at a sunflower and feel sad. Here are some great photos you shared with us. Smile!
July 20, 2022
