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Matter: The Great Breakup: The First Arrivals to the Americas Split Into Two Groups

Matter: The Great Breakup: The First Arrivals to the Americas Split Into Two Groups

A cast of the skull of the Kennewick Man, whose 8,500-year-old skeleton is the oldest evidence of one of two groups of humans whose population split about 13,000 years ago.
Do Bees Know Nothing?

Do Bees Know Nothing?

Not only can a honey bee count, it understands the concept of zero, according to researchers.
Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

In 2015, the Curiosity rover drilled into a mudstone called "Mojave." Analysis of those drill cuttings yielded organic molecules.
Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

In 2015, the Curiosity rover drilled into a mudstone called "Mojave." Analysis of those drill cuttings yielded organic molecules.
Do Bees Know Nothing?

Do Bees Know Nothing?

Not only can a honey bee count, it understands the concept of zero, according to researchers.
Trilobites: Black Hole Drags Star to Dusty Death

Trilobites: Black Hole Drags Star to Dusty Death

This phenomenon of two colliding galaxies, collectively known as Arp 299, is 150 million light years away in the constellation Ursa Major.
Trilobites: Black Hole Drags Star to Dusty Death

Trilobites: Black Hole Drags Star to Dusty Death

This phenomenon of two colliding galaxies, collectively known as Arp 299, is 150 million light years away in the constellation Ursa Major.
Trilobites: Extinct Gibbon Found in Tomb of Ancient Chinese Emperor’s Grandmother

Trilobites: Extinct Gibbon Found in Tomb of Ancient Chinese Emperor’s Grandmother

The gibbon’s skull, found in the tomb of Lady Xia, a grandmother of China’s first emperor Qin Shihuang, was so different from that of living gibbons that it was classified as its own genus and
Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

In Acciaroli, a hamlet in southern Italy, about one-in-60 residents are over the age of 90. A survey of about 4,000 Italians found that mortality rates in old age plateau around 105, suggesting that
Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

In Acciaroli, a hamlet in southern Italy, about one-in-60 residents are over the age of 90. A survey of about 4,000 Italians found that mortality rates in old age plateau around 105, suggesting that
Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

Matter: How Long Can We Live? The Limit Hasn’t Been Reached, Study Finds

In Acciaroli, a hamlet in southern Italy, about one-in-60 residents are over the age of 90. A survey of about 4,000 Italians found that mortality rates in old age plateau around 105, suggesting that
The Lost Dogs of the Americas

The Lost Dogs of the Americas

A 10,000-year-old dog from an archaeological site near Eldred, Ill., known as the Koster site, where the earliest known dogs in the Americas were found.
The Lost Dogs of the Americas

The Lost Dogs of the Americas

A 10,000-year-old dog from an archaeological site near Eldred, Ill., known as the Koster site, where the earliest known dogs in the Americas were found.
The Lost Dogs of the Americas

The Lost Dogs of the Americas

A 10,000-year-old dog from an archaeological site near Eldred, Ill., known as the Koster site, where the earliest known dogs in the Americas were found.
It Came From a Black Hole, and Landed in Antarctica

It Came From a Black Hole, and Landed in Antarctica

The IceCube Neutrino Observatory in Antarctica, where the tiny particle believed to have originated in a supermassive black hole was observed last year.
It Came From a Black Hole, and Landed in Antarctica

It Came From a Black Hole, and Landed in Antarctica

The IceCube Neutrino Observatory in Antarctica, where the tiny particle believed to have originated in a supermassive black hole was observed last year.
A Watery Lake Is Detected on Mars, Raising the Potential for Alien Life

A Watery Lake Is Detected on Mars, Raising the Potential for Alien Life

An artist’s rendering of the European Space Agency’s Mars Express spacecraft searching the planet’s south pole for liquid water.
A Large Body of Water on Mars Is Detected, Raising the Potential for Alien Life

A Large Body of Water on Mars Is Detected, Raising the Potential for Alien Life

An artist’s rendering of the European Space Agency’s Mars Express spacecraft searching the planet’s south pole for liquid water.
Matter: Bodies Keep Shrinking on This Island, and Scientists Aren't Sure Why

Matter: Bodies Keep Shrinking on This Island, and Scientists Aren't Sure Why

A fossilized skull of Homo floresiensis, the small hominin discovered in Indonesia. Scientists hypothesized that modern humans living in a village nearby might share the species' DNA.

ScienceTake: The Secret to Ant Efficiency Is Idleness

To dig a nest tunnel quickly and get the most out of their efforts, 30 percent of fire ants do 70 percent of the work.