Will Wildfire Smoke Worsen the Pandemic? We're About to...

When seasonal blazes descend on California, millions could be inhaling smoke, which is known to predispose people to lung diseases.

On the Moon, Astronaut Pee Will Be a Hot Commodity

Urine can be used for landing pads, gardens, and drinking water. But will there be enough to go around?

A ‘Hyperactive’ Hurricane Season Is About to Strike

Given the pandemic, how will emergency experts cope with evacuating people who might fear shared shelters, refuse to wear masks, and...

Polio Is Nearly Wiped Out. Covid-19 Could Halt That Progress

The disease once paralyzed 350,000 children each year; vaccination campaigns brought it down to just a few hundred cases. Then, the...

Why Creating a Covid-19 Vaccine Is Taking So Long

Developing a vaccine that’s both effective and safe is grueling, methodical work. And once we have one, we’ll need many, many doses...

This Lab ‘Cooks’ With AI to Make New Materials

A Toronto lab recycles carbon dioxide into more useful chemicals, using materials it discovered with artificial intelligence and supercomputers.

How Do Astronauts Escape When a Space Launch Goes Wrong?

SpaceX is preparing for the first crewed launch of its Crew Dragon capsule. Engineers have spent years planning for what happens if...

How Does a Virus Spread in Cities? It’s a Problem of Scale

Population density didn’t make Covid-19 worse in New York City. If you want to know what went wrong, you have to think a lot smaller.

Covid-19's Toll on Prison Labor Doesn't Just Hurt Inmates

Work stoppages impact the incarcerated workforce as well. The financial losses extend beyond the walls.

Carbon Dioxide Emissions Have Dropped 17 Percent During...

Some regions, like the US and the UK, have seen their outputs fall by a third, due in large part to people driving less.