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EarthSky Voices

Dinosaurs already in decline before asteroid?

Life was already getting harder for dinosaurs before an asteroid wiped them out.

Study sees surge in coastal flooding in 2030s

From NASA JPL. In the mid-2030s, the U.S. coast will experience increasing coastal flooding, when the lunar cycle will amplify already rising sea levels.

Snakes’ forked tongues let them smell in stereo

An evolutionary biologist explains how snakes use their tongues to collect and transport molecules to vomeronasal organs in their mouths, not to taste them, but to smell them.

Tiangong: China’s new space station. What to expect

Astronauts performed the first space walk on Tiangong, China's new space station, on July 4, 2021. They are now preparing it to be inhabited by future crews.

Pacific Northwest hit with exceptional heat

The Pacific Northwest experienced a dramatic and unprecedented heat wave in late June, 2021. Many cities reported all-time-record highs.

Big gulp! 2 black holes swallow neutron stars

What happens when black holes swallow neutron stars? Scientists could only speculate until recently. Now we have measurements of 2 such events!

5 satellite images show how fast our planet is changing

Here are 5 satellite images that illustrate how fast Earth is changing.

NASA announced 2 missions to Venus by 2030. Why that’s exciting

For decades, the exploration of our solar system left one neighboring planet largely unexplored. These missions to Venus mean things are about to change.

Meet Australotitan: Australia’s largest dinosaur yet discovered

Australotitan is Australia’s largest dinosaur species ever discovered, as long as 2 buses as heavy as 1,400 kangaroos.

Why is the sun’s atmosphere hotter than its surface?

The sun's atmosphere, or corona - the wispy part we see during solar eclipses - is hundreds of times hotter than the sun's visible surface, or photosphere. Why?