News
- Astronomy
Astronomers may not have found a sign of the universe’s first stars after all
A new study of radio waves from early in the universe’s history finds no hint of the “cosmic dawn” claimed by an earlier study.
- Space
How Russia’s war in Ukraine hinders space research and exploration
A Mars rover, an X-ray telescope and several low-Earth satellites are at risk in response to international sanctions on Russia.
- Neuroscience
A hit of dopamine sends mice into dreamland
New results are some of the first to show a trigger for the mysterious shifts between REM and non-REM sleep in mice.
- Health & Medicine
How to interpret the CDC’s new mask guidelines
Based on the CDC’s new metrics, most people no longer need to wear masks in most situations, but that could change.
- Health & Medicine
Fecal transplant pills helped some peanut allergy sufferers in a small trial
In a small study, a one-day fecal microbiota transplant allowed some peanut-allergic adults to safely eat one to two peanuts several months later.
- Life
Africa’s fynbos plants hold their ground with the world’s thinnest roots
Long, thin roots help this South African shrubland commandeer soil nutrients and keep the neighboring forest from encroaching on its territory.
- Health & Medicine
How omicron’s mutations make it the most infectious coronavirus variant yet
With its mishmash of mutations, omicron has a unique anatomy that has helped fuel its dominance.
- Life
Why kitchen sponges are the perfect home for bacteria
Sponges are remarkably diverse hot spots for bacteria, in part because of the mixed-housing environment that the tools offer their tenants.
- Climate
A UN report shows climate change’s escalating toll on people and nature
The latest United Nations' IPCC climate change report underscores the urgent need for action to avoid the worst consequences of global warming.
- Quantum Physics
A new gravity sensor used atoms’ weird quantum behavior to peer underground
Quantum sensors promise to be more accurate and stable in the long run than other gravity probes.
- Microbes
A chain mail–like armor may shield C. difficile from some antibiotics
Examining the structures that protect Clostridioides difficile from medicines could help researchers find new ways to target and kill the bacteria.
- Health & Medicine
More than 5 million children have lost a parent or caregiver to COVID-19
The number of children who experienced the death of a parent or caregiver due to COVID-19 nearly doubled from May through October in 2021.
