Earth
- Space
Let’s learn about auroras
A gust of charged particles from the sun called the solar wind lights up auroras on Earth — and on other planets.
- Physics
Scientists Say: Convection
Convection is a process that transfers heat through the movement of liquid or gas.
- Environment
Everyday plastics can pollute, leaching thousands of chemicals
Plastic bags and containers leach potentially toxic chemicals into both food and water, but researchers yet don’t know how they might affect health.
- Brain
Ask the experts: How to create a top-notch science fair project
Five finalists in the Broadcom MASTERS middle-school competition reveal how they created nationally competitive projects.
- Earth
Here’s how ice needles can sculpt natural rock art
Striking stone patterns adorn remote cold landscapes the world over. The recipe for these adornments: Freeze, thaw, repeat.
- Agriculture
Potty-trained cows could help reduce pollution
About a dozen calves have been trained to pee in a stall. Toilet training cows on a large scale could cut down on pollution, scientists say.
- Earth
Let’s learn about meteor showers
Meteor showers happen when Earth’s orbit passes through trails of debris left behind by comets or asteroids.
- Earth
Scientists Say: Magma and lava
The word magma refers to molten rock deep inside Earth. That rock is called lava when it reaches Earth’s surface.
- Space
Explainer: How auroras light up the sky
The northern and southern lights are considered natural wonders of the world. Here’s how these and related splendid sky glows form.
- Physics
Research on climate and more brings trio the 2021 physics Nobel Prize
Syukuro Manabe and Klaus Hasselmann pioneered work on simulations of Earth’s climate. Giorgio Parisi probed complex materials.
- Earth
Scientists Say: Anthropocene
Humans are changing the world in profound ways. Some scientists think those changes have launched a new epoch in Earth’s history: the Anthropocene.
- Oceans
Moon’s orbital wobble can add to sea-level rise and flooding
In a dozen years or so, the tide-enhancing effects of a wobble in the moon’s orbit should lead to dramatically higher sea levels in some coastal cities.
