Features

Mercury is a metal, yet it has some weird physical properties, including being a liquid at room temperature.

Humans have practiced head shaping for tens of thousands of years, and anthropologists are beginning to uncover clues as to why.

A doctor who had a genetic condition that prevents teeth from forming searched for the DNA mutation that had affected his family for over 150 years.

Earth from space A 2023 satellite photo highlights the point where a trio of rivers converges in Guyana. One of the waterways has been significantly altered by mining waste, creating a striking color contrast.

Astonishing artifacts The mysterious Lady of Elche was crafted from a large limestone block before the Romans ruled Spain.

The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.

Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly make you feel heavier or lighter.

In 1974, physicist Stephen Hawking described the potential for tiny, primordial black holes that existed at the dawn of time to explode — and reshaped what we knew about these cosmic behemoths.

Some creatures can dramatically alter their internal temperature — a strategy called heterothermy — and outlast storms, floods and predators.

An 11th-century Norse coin found in Maine raises the question of whether the Vikings landed there.