Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s 32% and Mars ’ 25%. It’s unlikely that the core actually formed like this.

For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the planet actually emits more energy than it receives from the Sun. This subtle ...

China's Three Gorges Dam has effectively changed Earth's axis by nearly an inch since it was built nearly 18 years ago, causing our days to lengthen ever so slightly ...

Astronomers using the James Webb Space Telescope are unraveling the mysteries of TRAPPIST-1e, an Earth-sized exoplanet 40 light years away that could harbor liquid water. Early data suggests hints of ...

NEW YORK (AP) — Researchers have discovered life-size rock carvings of camels, gazelles and other animals in the Saudi Arabian desert. Strong earthquake kills 20 people in a central Philippine region ...

A witness told police a Minneapolis man was shot after an argument about “which side they were on,” according to a Tuesday criminal complaint.

Scientists found that carbon enabled Earth’s core to solidify. Without it, the inner core may not exist. A team of scientists from the, University of Leeds, and University College London has uncovered ...

What kinds of planet does a solar system cook up? It depends on the ingredients you throw in. Astronomers report that the planets that arise around a star can have a vast array of structures that ...

Chemical fossils from 635-million-year-old rocks suggest sponges were among Earth’s first animals, reshaping the story of early life.

You probably learned in high school chemistry class that core electrons don't participate in chemical bonding.

When faced with testimony that Zug Island’s EES Coke Battery is one of Michigan’s worst sulfur dioxide polluters, an attorney for the facility said Monday: “So what?” ...

Billions of years ago, water flowed across Mars. Most scientists agree the red planet had rivers. But did those rivers flow into an ocean? New research from the University of Arkansas found strong ...