Humans
We summarize the week's scientific breakthroughs every Thursday.
- 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.
- Earth
Here are some big-if-true scientific claims that made headlines in 2023
Hominid cannibalism, “dark stars,” the secrets of Earth’s core and more tantalizing findings will require more evidence before scientists can confirm them as fact.
- Health & Medicine
Here are some of the biggest medical advances in 2023
The first CRISPR gene-editing therapy, a new Alzheimer’s drug and RSV vaccines were among the big developments in medicine this year.
- Health & Medicine
Why weight-loss drugs became more popular than ever this year
Ozempic and related drugs can drastically reduce body weight, and more potent versions are on the way. But questions remain about who should take them.
- Health & Medicine
A gene editing technique shows promise for lowering LDL cholesterol
In a trial of 10 people with familial hypercholesterolemia, a genetic medicine reduced levels of LDL cholesterol in the blood by up to 55 percent.
- Anthropology
Spanish horses joined Indigenous South Americans’ societies long before Europeans came to stay
By the early 1600s, hunter-gatherers at the continent’s southern tip adopted horses left behind by colonial newcomers, new finds suggest.
- Health & Medicine
The first CRISPR therapy approved in the U.S. will treat sickle cell disease
In the world’s first CRISPR-based treatment, genetic tweaks to red blood cells aim to help people with the often debilitating disease.
- Neuroscience
Electrical brain implants may help patients with severe brain injuries
After deep brain stimulation, five patients with severe brain injuries improved their scores on a test of cognitive function.
- Archaeology
Ancient Maya power brokers lived in neighborhoods, not just palaces
Lidar discoveries and recent excavations are forcing archaeologists to rethink ancient Maya political structures.
- Archaeology
A mysterious ancient grave with a sword and mirror belonged to a woman
The items hint that she fought in or helped plan raids and defensive actions in what’s now southwestern England about 2,000 years ago, scientists speculate.
- Health & Medicine
A brain-monitoring device may one day take the guesswork out of anesthesia
The automated device pairing brain activity and dosing kept two macaques sedated for 125 minutes, raising hopes of precision anesthesia for people.
- Health & Medicine
50 years ago, scientists suspected that lost sense of smell could be restored
Cells responsible for humans’ sense of smell can regenerate. Now, research spurred on by the pandemic could help answer questions about the process.
