All Stories
- Climate
World’s oceans have warmed to a ‘point of no return’
More than half the global ocean sees temperature extremes that 100 years ago were rare.
- Math
Let’s learn about pi
It’s not just an excuse to eat pastries. This number helps describe everything from the smallest particles to planets orbiting other stars.
- Physics
Scientists Say: Dark Energy
Dark energy is the unknown force causing the universe to expand faster and faster.
- Archaeology
Our species may have reached Europe while Neandertals were there
Archaeological finds from an ancient French rock-shelter show periodic settlements by both populations, just not at the same time.
- Animals
A new drug mix helps frogs regrow amputated legs
The treatment helped frogs grow working limbs useful for swimming, standing and kicking. It’ll be a while before people can do that.
- Environment
‘Mining’ cryptocurrencies pollutes the real world
Bitcoin and other cryptocurrencies exist only online. Yet the environmental impacts of their networks affect the real world.
- Environment
How we choose to pay has hidden costs for the planet
Whether cash or credit, phone apps or digital currencies — all forms of payment have behind-the-scenes costs. And these can vary dramatically.
- Animals
Bees and butterflies struggle to find flowers in polluted air
Emissions from cars and trucks make it harder for insects to find flowers. That in turn reduces flower visits and pollination, a new study finds.
- Physics
Explainer: How do mass and weight differ?
Learn why these terms aren’t the same and which to use where. And should you report your results in kilograms? Pounds? If in doubt, try using newtons.
- Life
Scientists Say: Eukaryote
Eukaryotes are living things whose cells package their genetic material inside a pouch called a nucleus.
- Math
Why some icicles become scallops not spikes
The newfound — and at times quirky — shapes reflect the density of water surrounding submerged ice.
- Earth
Widely used pesticides may threaten Earth’s ozone layer
Data show a major class of long-used “eco-friendly” copper chemicals unexpectedly react with soil, making gases harmful to Earth’s protective ozone layer.
