Science

Scientists can’t agree on how clumpy the universe is

The universe is surprisingly smooth. A new measurement reveals that the universe is less clumpy than predicted, physicists report in…

New guidance on brain death could ease debate over when life ends

When your brain stops working — completely and irreversibly — you’re dead. But drawing the line between life and brain…

Species may swim thousands of kilometers to escape ocean heat waves

When an intense heat wave strikes a patch of ocean, overheated marine animals may have to swim thousands of kilometers…

Better playground design could help kids get more exercise

The playground at Lake County Intermediate School in Leadville, Colo., was in desperate need of a makeover. The schoolyard didn’t…

Predictions for the 2020 Atlantic hurricane season just got worse

Chalk up one more way 2020 could be an especially stressful year: The Atlantic hurricane season now threatens to be…

A new experiment hints at how hot water can freeze faster than cold

In physics, chilling out isn’t as simple as it seems. A hot object can cool more quickly than a warm…

Emissions dropped during the COVID-19 pandemic. The climate impact won’t last

To curb the spread of COVID-19, much of the globe hunkered down. That inactivity helped slow the spread of the…

Rogue immune system reactions hint at an early treatment for COVID-19

In severe cases of COVID-19, a person’s immune system throws everything it has at the coronavirus, but some of the…

Jupiter’s moons could keep each other warm by raising tidal waves

It takes a certain amount of heat to keep an ocean wet. For Jupiter’s largest moons, a new analysis suggests…

How understanding nature made the atomic bomb inevitable

Atomic bombs hastened the end of World War II. But they launched another kind of war, a cold one, that…