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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
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
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
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
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.
July 19, 2022
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.
July 16, 2022
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.
July 7, 2022
Geomagnetic storms: Will you lose power where you live?
Scientists studied past geomagnetic storms to learn more about how strong storms affect the power grid. The maps here show areas most at risk.
June 29, 2022
