Uncategorized
- Life
Bacteria fossils hold the oldest signs of machinery needed for photosynthesis
Microfossils from Australia suggest that cyanobacteria evolved structures for oxygen-producing photosynthesis by 1.78 billion years ago.
- Health & Medicine
Fetuses make a protein that causes morning sickness in pregnancy
A hormone called GDF15 triggers a part of the brain involved in nausea and vomiting, a new study finds. Blocking its action may lead to treatments.
- Science & Society
Most people say self-control is the same as willpower. Researchers disagree
Psychologists say self-control is about planning ahead to avoid relying on willpower in the moment. Laypeople see things differently.
- Planetary Science
A toxic gas that could help spawn life has been found on Enceladus
Cassini data indicate that hydrogen cyanide, a key building block for life, exists on Saturn’s icy moon. A snakelike NASA robot might test for sure.
- Health & Medicine
When it comes to physical activity, every bit counts
Biking to the store. Raking leaves. Playing with your kids. Scientists are getting a clearer picture of all the activities that offer health benefits.
- Animals
Ant face patterns like swirls and stubble might have practical value
Reviewing thousands of ant photos hints that facial surface patterns might offer benefits, like structural support or abrasion protection.
- Animals
Reindeer can sleep while they chew
Brain waves and behaviors suggest that reindeer can doze while chewing, a timesaving strategy for sleeping under tough conditions.
- Psychology
Here’s how to give a good gift, according to science
Gifting researcher Julian Givi outlines common mistakes gift givers make and how science can help us avoid those costly errors.
- Life
The Endangered Species Act is turning 50. Has it succeeded?
After 50 years, this landmark law has kept many species alive — but few wild populations have recovered enough to come off the “endangered” list.
- Life
These scientific discoveries set new records in 2023
This year’s record-breaking findings shed new light on human history and the most amazing feats in the animal kingdom.
- Animals
50 years ago, the U.S. Navy enlisted sea lions and other marine mammals
Today, dolphins and sea lions in the U.S. Navy Marine Mammal Program protect harbors and participate in research on animal health and well-being.
- Science & Society
These are the most popular Science News stories of 2023
Science News drew over 21 million visitors to our website this year. Here’s a look back at the most-read and most-watched stories of 2023.
