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Oldest wooden tools yet unearthed found in southern Greece

The oldest wooden tools used by early humans have been uncovered in an ancient lakebed in Greece. The hand tools date to 430,000 years ago.

Dave Adalian

February 1, 2026

Happy Groundhog Day! Will Phil see his shadow?

The predicted high for Punxsutawney, Pennsylvania, on February 2, Groundhog Day, is 24 degrees F (-4 C) and cloudy. Will Phil see his shadow?

Editors of EarthSky

February 1, 2026

The February birthstone is the purple amethyst

Are you a February baby? Here's some cool info about your February birthstone, the amethyst. Read the lore of this purple stone, a variety of quartz.

Editors of EarthSky

February 1, 2026

Oldest known rock art in the world found in Indonesian cave

Scientists discovered the oldest known rock art in a cave on an island off Sulawesi, Indonesia, dated to 67,800 years old.

Shireen Gonzaga

January 29, 2026

How to photograph snowflakes from Michael Peres

An expert photographer of nature’s beauty on a minuscule scale, Michael Peres offers you tips on how to photograph snowflakes.

Deanna Conners

January 28, 2026

Challenger disaster: 40 years ago today

January 28, 1986. On today's date 40 years ago, the Space Shuttle Challenger (mission STS-51-L) exploded and broke apart 73 seconds into its flight.

Deborah Byrd

January 28, 2026

Quantum computers and exoplanets: New view of distant worlds

Quantum computers and exoplanets: Distant planets around other stars are difficult to image. But quantum computers could help astronomers see them better.

Paul Scott Anderson

January 27, 2026

Deepfakes are flooding the web, and anyone can make them

Deepfakes are AI-generated images and videos that can fool viewers into believing they're real. They're exploding on the internet, and anyone can create them.

EarthSky Voices

January 21, 2026