After a concussion, the brain may no longer make sense of sounds
A concussion can make it difficult to converse in a noisy room. Scientists say that's because the injury has impaired the brain's ability to process sounds.
Science
Here's what happens if the world warms more than 1.5 degrees Celsius
At international climate talks, world leaders are trying to keep the world to 1.5 degrees Celsius of warming. Why is that number important, and what happens if the world gets hotter than that?
A doctor spread COVID misinformation and renewed her license with a mouse click
Lee Merritt is a back surgeon with a long history of spreading COVID misinformation. But she renewed her medical license last month.
Astronomers want NASA to build a giant space telescope to peer at alien Earths
NASA should work toward a new space telescope that could view small planets around distant stars with the potential to host life, expert panel says
The U.N. says climate impacts are getting worse faster than the world is adapting
A new report finds some climate impacts are already irreversible and will last for many decades to come. It calls for far more money to help countries prepare for the growing risks they face.
Suicide rates fall again — but not for young adults and some people of color
Despite lockdowns, historic job losses and COVID-19, new figures from the CDC show that death by suicide dropped for a second straight year in 2020.
The biggest whales can eat the equivalent of 80,000 Big Macs in one day
Scientists have gotten the best estimates yet of exactly how much baleen whales, the largest animals on the planet, can consume in one day. Their caloric intake is mind-boggling.
Concussions don't necessarily affect ears — but they can affect the ability to hear
People who sustain a concussion can develop an unusual hearing problem. Their ears work fine, but their brain struggles to process sounds.
CDC recommends Pfizer's COVID vaccine for children ages 5 through 11
Kids ages 5 to 11 will soon be able to get Pfizer's low-dose COVID vaccine. CDC director Rochelle Walensky agreed with a unanimous decision of a team of advisers that the benefits outweigh the risks.
Biden joins global push to cut climate-warming methane emissions
In a major expansion, proposed U.S. rules would apply not only to new oil and gas operations but also older ones. Methane is a potent greenhouse gas considered key to slowing global warming quickly.