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A scientist launches a hunt for earthly extraterrestrials. Help her find them!
Venezuela’s last glacier is about to disappear, making it the first country in modern history to lose all of its glaciers.
“That’s the Earth, breathing every single day, changing with the seasons, responding to the sun, to the changing winds, ocean currents and temperatures.”
More than 15,000 scientists in 184 countries have signed a letter urging the world to address major environmental concerns. “Soon it will be too late to shift course away from our failing trajectory, and time is running out.”
A heatwave in 2011 killed off seagrass beds in Shark Bay, Australia. Now, scientists have discovered that tiger sharks are helping the ecosystem recover.
A remarkable find of fossil teeth from tiny, furry-tailed creatures – thought by scientists to be a human ancestor – dating back 145 million years.
Are you ready for 15 days of darkness, November 15-30? No need to be. It’s a hoax.
Mammals once were night creatures. A new study suggests they became active in daylight after the dinosaurs went extinct, 66 million years ago.
We published a photo last Tuesday, showing a mountain’s shadow. We wondered what caused it. Now – with the help of the EarthSky community – the mystery may be solved.
Zombie ant fungus doesn’t attack ants’ brains. Instead, the fungus invades an ant’s entire body, forming an interconnected 3-D network, forcing the ant to move.
A recently published study confirms that native trees are most effective in hosting caterpillars, an important food for birds.
Something to think about while raking.
As climate talks open in Bonn, Germany this week, negotiators are considering a report from the World Meteorological Organization, urging action now.
This year’s ozone hole peaked in September at its smallest observed extent since 1988, due to an unstable and unusually warm Antarctic vortex in 2017.
The Yellowstone supervolcano’s last eruption wasn’t a single event, but 2 closely-spaced eruptions that put the brakes on a natural global-warming trend, says a study.
Eerie denizens of the ocean depths star in this video from the Monterey Bay Aquarium Research Institute.
These swirling, intense red sunset skies are due to ongoing wildfires in northern Italy.
In recent years, the International Space Station has given astronauts the chance to photograph transient luminous events – or TLEs – natural light shows produced at the tops of thunderstorms.
La Niña (or not) is the biggest wildcard in how this year’s winter might shape up. Overall, NOAA’s outlook suggests a relatively cool, wet U.S. North – and warm, dry U.S. South – this winter.
Jaws beware! Alligators might be coming for you, according to new research.
Young moon and Mercury after sunset
Leonid over Georgia