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Another terrible year for wildfires and smoke in the US in 2020
Firefighters hold the line on September 24, 2020, against the largest fire in California’s history: the 1 million-acre August Complex. Image via Tiana Huddlestun/ USFS/ InciWeb. In the historical...
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Great Backyard Bird Count begins February 12
View at EarthSky Community Photos. | Stephanie Becker in the San Francisco Bay Area, California, gets a gold star for capturing this photo of a sparrow on February 1, 2021. She wrote: “In looking...
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What triggered Yellowstone’s Steamboat Geyser?
A major eruption at Steamboat Geyser on August 4, 2018. Steamboat is the world’s tallest active geyser, with eruptions that can blast more than 300 feet (91 meters) into the air. It’s been super active...
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Goblin sharks, ghost crabs and vampire bats, oh my!
Portrait of a goblin shark. Image via Wikimedia Commons. To get you in the Halloween spirit for the creepy, ghoulish and grotesque, we present to you animals that have spooky-sounding names: goblin...
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Leap years: Why 2022 isn’t one
This video shows why we have leap years. And it shows what happens if we don’t. Via James O’Donoghue. Why 2022 isn’t a leap year The last leap year was 2020. So 2024 will be our next leap year, a...
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Mount St. Helens’ 1980 eruption still causing destruction
While the loss of power disrupted a major telemetry hub for Mount St. Helens monitoring, @PNSN1 stations on the volcano are still providing plenty of data. There is no volcanic unrest associated with...
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How to see the International Space Station in your sky
View at EarthSky Community Photos. | Filippo Galati in Sampieri, Sicily, Italy, shared this image. Filippo wrote: “On May 16, 2022, before the start of the lunar eclipse, I photographed a particularly...
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Cloud streets: What are they? How do they form?
These cloud streets appeared over the Sea of Okhotsk, Russia, on December 28, 2023. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured these parallel lines of...
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How snowflakes get their distinct and various shapes
View larger at EarthSky Community Photos. | Sheryl R Garrison in Southern Alberta, Canada, captured this lovely closeup image of a snowflake on November 9, 2022. She said: “Every winter I try to...
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Ancient Maya civilization used advanced water treatment technology
The ancient temples of the Maya city of Tikal rise above the forest in Guatemala. Image via jjmusgrove/ Flickr. Scientists have uncovered evidence of an advanced water treatment system, built more than...
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