The real Paleo diet was heavy on plants with very little meat, according to a study of early human remains

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A stock image shows a person wearing animal skins and holding up a meat-covered bone in front of a cave.
An actor re-enacts a pre-agriculture man holding up a meaty bone.

gorodenkoff/iStock / Getty Images Plus

Humans are depleting groundwater faster than in the past 40 years, but places like Saudi Arabia and Thailand have figured out how to boost their freshwater reserves

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A man stands in a deep hole in the ground, collecting groundwater to water a cow shown on the right.
In about a third of the aquifers analyzed, researchers found that depletion has been more severe in the 21st century than in the last 20 years of the previous one.

AP Photo/Brian Inganga, File

Scientists discovered a new dinosaur species, and it could reshape the history of T. rex's evolution

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Computer animations of two giant dinosaurs locked in a fight.
Scientists discovered a new dinosaur species that was comparable in size to T. rex.

Sergydv/Getty Images

Take a look at the silent X-59 aircraft, NASA's experimental attempt at creating a supersonic jet with a quieter sonic boom

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The experimental quiet supersonic aircraft X-59
The experimental quiet supersonic aircraft X-59.

Lockheed Martin/Garry Tice/Handout via REUTERS

10,000-year-old chewing gum is full of clues about what Stone Age teens were eating

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A picture shows a black wad of resin placed between two casts of gum that show clear teeth marks embedded in the resin.
A picture shows ancient resin next to two casts of the gum showing clear teeth mark left behind a teen almost 10,000 years ago.

Verner Alexandersen/Stockhölm University

Men in medieval China were able to move up the social ladder as easily as male Baby Boomers in the US, study suggests

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A miniature landscape palace of Xi 'an Daming Palace National Heritage Park is seen under heavy snow in Xi 'an City, Shaanxi Province, China, Nov 11, 2023.
A miniature landscape palace of Xi 'an Daming Palace National Heritage Park is seen under heavy snow in Xi 'an City, Shaanxi Province, China, Nov 11, 2023.

Costfoto/NurPhoto via Getty Images

NASA telescope discovers mysterious hotspot of high-energy particles beyond our galaxy

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gamma ray burst
An artist's interpretation of a gamma-ray burst.

DESY, Science Communication Lab

James Webb Space Telescope reveals one of the most mysterious worlds in the universe might have a volcanic moon

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On left is an illustration of the James Webb Space Telescope. On right is an illustration of a brown dwarf with an aurora at its north pole.
Astronomers using the James Webb Space Telescope have found evidence to suggest aurora on brown dwarf W1935.

NASA GSFC/CIL/Adriana Manrique Gutierrez/NASA, ESA, CSA, and L. Hustak (STScI)

China opens the world's deepest and largest underground laboratory 7,800 feet below a mountain to hunt for dark matter

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An aerial photo shows entrances carved into a mountain.
A photo shows the tunnel entrance of the China Jinping Underground Laboratory in China's Sichuan Province on November 8, 2023.

Xu Bingjie/Xinhua via Getty Images

Tectonic plates that are causing the Himalayas to grow may also be splitting Tibet in two, study suggests

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Colorful Buddhist prayer flags in the Himalayas.
Buddhist prayer flags in the Himalayas.

Avatar_023/Getty Images

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