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A crisis like the COVID-19 pandemic lends urgency to scientific research, putting researchers under pressure to produce. janiecbros/E+ via Getty Images

Pandemic, war and environmental disaster push scientists to deliver quick answers – here’s what it takes to do good science under pressure

Scientists can be asked to help find solutions during disasters. A study of how archaeologists worked on the problem of looting during the Syrian war offers lessons for science done during crisis.
Community members from Utqiagvik, Alaska, look to open water from the edge of shorefast sea ice. Matthew Druckenmiller

2021 Arctic Report Card reveals a (human) story of cascading disruptions, extreme events and global connections

Sea ice is thinning at an alarming rate. Snow is shifting to rain. And humans worldwide are increasingly feeling the impact of what happens in the seemingly distant Arctic.
Brown poop can indicate good health. Vitalii Barida/iStock via Getty Images Plus

Why is my poop brown?

The answer is more complicated than you might think. It has to do with how your body gets rid of old red blood cells.
Damage in Mayfield, Kentucky, after a tornado swept through the area on Dec. 11, 2021. Brett Carlsen/Getty Images

Why the southern US is prone to December tornadoes

Tornadoes in December aren’t unusual in the Gulf Coast and lower Mississippi Valley states, but the Dec. 10-11 outbreak was extreme and far-reaching.
Todas las pruebas de COVID-19 comienzan con una muestra, pero los procesos científicos varían mucho después de ese punto. Morsa Images/Digital Vision via Getty Images

¿Pruebas COVID de PCR o antígenos? Conoce cuáles son las diferencias

Los dos tipos de pruebas de COVID-19 – antígeno y PCR – funcionan de formas muy diferentes, por lo cual una es rápida pero menos certera y la otra lenta y precisa.
The legacy of the Sandy Hook shootings in 2012 continues to reverberate 10 years later, including in how conspiracy theories have changed since the tragedy. Eduardo Munoz Alvarez/AFP via Getty Image

10 years after the Sandy Hook shooting, Alex Jones is being held accountable for spreading conspiracy theories – but those sorts of lies now plague the US

Conspiracy theories surrounding the Sandy Hook school shooting continue to reverberate in the US, but now there are legal consequences.
Members of a civil society group participate in a candlelight vigil to pay tribute to the Sri Lankan citizen Priyantha Kumara, who was lynched by a Muslim mob in Pakistan. AP Photo/K.M. Chaudary

Understanding the history and politics behind Pakistan’s blasphemy laws

A scholar of Islam explains how Muslim religious leaders, starting around the year 1050, worked with political rulers to challenge what they considered to be sacrilegious influence on society.