JoAnna Wendel

A NASA instrument designed to study dust has revealed that some of the largest methane clouds ever seen are floating over the US, Iran and elsewhere.

The ozone hole is the largest it's been since 2015, but overall it's still decreasing.

Tyrannosaurus rex and many of its theropod cousins had large bodies but tiny arms. What gives?

The largest head in the animal kingdom likely belongs to the blue whale, while the largest relative to body size comes from an unlikely source.

Astronomers say the fireball was likely caused by a space rock the size of a golf ball disintegrating in Earth’s atmosphere.

From the moment they hatch, Lagria beetles carry symbiotic bacteria by stashing them in special pockets.

Sediment cores from the LSU Mounds reveal thousands of years of buildup of clay, ash from burning plants and animal remains.

While exploring off the coast of Israel, archaeologists unearthed a rare astrological bronze coin showing the Roman moon goddess Luna.

Graphene found interlocked with diamonds inside an ancient meteorite could be the key to superfast, supercharged tech.

While exploring an old mine in northwestern England, a group of cavers stumbled upon 200-year-old personal items and equipment left by 19th-century cobalt miners.

Brain regions that activate when we hear speech out loud are also active when we think about speech.

Burning is the release of energy, and some materials like metals, can absorb energy better than others, such as wood.

Here's how many tiny and large space rocks hit the moon on a regular basis.

A spinning planet is subject to centrifugal force, which causes its equator to bulge at the sides.

Polar bears evolved during a time when the North and South poles were not connected by ice or land, so they stayed at the North Pole.

Small bodies like asteroids and comets are shaped more by their geological makeup than by gravity, which molds planets and moons into spheres.

About 4.5 billion years ago, the solar system was just a giant, spinning cloud of gas and dust. Today, it's flat. Here's how that happened.

Some animals, such as poison dart frogs, carry enough toxic chemicals to kill multiple adult humans, but they've evolved tricks to avoid poisoning themselves.

These planets are mostly made of gas, but a spaceship would have a rough time trying to get through a giant planet like Jupiter or Saturn.

Turtles are famous for their long lives. How do they achieve this longevity?

Higher tides, bigger earthquakes, and more frequent volcanic eruptions would plague the planet.

Particle accelerators can help scientists measure the smallest and largest particles in the universe.

Our planet is constantly moving, racing around the sun and spinning on its axis. But how fast does it move?