Most air cleaning devices have not been tested on people − and little is known about their potential harms, new study finds
Portable air cleaners aimed at curbing indoor spread of infections are rarely tested for how…
How AI threatens democracy and what we can do about it
Imagine receiving a robocall, but instead of a real person, it’s the voice of a…
The most powerful tool in an astronomer’s arsenal is a lens – but not the kind you might think
Astronomers are living in a golden age of bigger and better telescopes. But even our…
Part of your brain gets bigger as you get older – here is what that means for you
I recently asked myself if I’ll still have a healthy brain as I get older.…
International Opinion on Global Threats
From left: A container ship docks in Shenzhen, China, on April 11, 2025 (Cheng Xin/Getty…
Chaos gardening – wild beauty, or just a mess? A sustainable landscape specialist explains the trend
If you’ve spent any time in the gardening corners of social media lately, you’ve likely…
Hype and western values are shaping AI reporting in Africa: what needs to change
News media shape public understanding of artificial intelligence (AI) and influence how society interacts with…
Why does Australia have earthquakes? The whole continent is under stress from distant forces
Last Saturday at 9:49am local time, a magnitude 5.6 earthquake occurred about 50km west of…
Some pro athletes keep getting better as they age − neuroscience can explain how they stay sharp
In a world where sports are dominated by youth and speed, some athletes in their…
Education levels of major news outlets’ audiences vary widely
The American audiences of 30 prominent news sources vary dramatically in their levels of education,…