Uncategorized
- Life
Some E. coli set off viral grenades inside nearby bacteria
A bacterial toxin called colibactin awakens dormant viruses embedded in bacterial DNA, but its ecological role is still unknown.
- 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.
- Chemistry
Marie Maynard Daly was a trailblazing biochemist, but her full story may be lost
Marie Maynard Daly was the first African American woman to receive a Ph.D. in chemistry, but her own perspective on her research is missing from the historical record.
- Science & Society
‘Fresh Banana Leaves’ shows how Western conservation has harmed Indigenous people
Author and environmental scientist Jessica Hernandez discusses Indigenous displacement, conservation’s failures and how to improve the field.
- 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.
