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.

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.

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.

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.

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.

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.

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!

Record-breaking heat in the UK

Record-breaking heat was recorded in the UK yesterday, where temperatures reached 40.2°C (104.4°F) for the first time since record-keeping began.

Heatwaves and fires in Europe, Africa, and Asia

NASA Earth Observatory reports on heatwaves and fires in Europe, Africa and Asia in summer 2022 and attributes the extreme weather to global warming.

U.S. heat dome expands west to sizzle cities

In early July 2022, a heat dome is settling over the U.S. Midwest and Plains, setting records for heat. It'll be a brutal summer for parts of North America.