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A meeting of 2 ancient human species in fossil footprints

Scientists have discovered ancient human footprints of 2 different species, showing that they coexisted on the African shore. See the tracks here.

EarthSky Voices

December 5, 2024

Thanksgiving turkey: White meat or dark meat?

Thanksgiving turkey raises an important question: Dark or white meat? Amaze your companions on why different cuts of turkey have different characteristics.

EarthSky Voices

November 28, 2024

MOND and more. Does the universe need a rethink?

MOND theory: There's increasing evidence that astronomical theories don’t match observations. Is it time to rethink our story of how our universe came to be?

Deborah Byrd

November 21, 2024

Carl Sagan and his scientific legacy on his 90th birthday

Carl Sagan would have turned 90 on November 9, 2024. Here's a look at his accomplishments and the contributions he made to the world of astronomy and science.

EarthSky Voices

November 9, 2024

The crater-dome illusion: When your brain inverts the image

The crater-dome illusion happens when you look at an image of a crater and the angle of the light causes it to appear as a dome. Here's how to fix it.

Kelly Kizer Whitt

November 3, 2024

2024 Antarctic ozone hole 7th-smallest since recovery began

Scientists reported this week on the extent of the 2024 Antarctic ozone hole, saying it was the 7th-smallest since recovery began in 1992.

EarthSky Voices

October 31, 2024

A large fireball blazed over Lake Erie on October 21

Witnesses described a large fireball over Lake Erie last night. The American Meteor Society had some 350 reports as of this writing. Thousands must have seen it!

Robert Lunsford

October 22, 2024

Monday’s livestream: Extreme weather and climate change with Davide Faranda

Watch our replay about climate change and extreme weather with climatologist Davide Faranda, an expert on cold spells, heatwaves and severe thunderstorms.

Dave Adalian

October 15, 2024