Sometimes a chemical reaction can take a while. If speed is needed, a catalyst can help.
The greenery can release chemicals into the air that react with combustion pollutants to make ozone. And trees release more of those chemicals where it gets really hot, a new study finds.
Something has to replace the BPA in ‘BPA-free’ plastics. A teen has been probing what that is.
Many people know to put on sunscreen. Remembering to put more on is harder. A teen invented an indicator that glows pink when it’s time to reapply.
It’s been 30 years since astronomers first witnessed the stellar explosion known as SN 1987A. Today, researchers are still learning from this cataclysmic phenomenon.
How did our moon form? Scientists are still debating the answer. It may be the result of some one big impact with Earth — or perhaps many small ones.
Three scientists probe how the natural world makes light, in hopes of using this information to design new and better products.