Highlights

Habits that lead to tooth loss

Almost 1 in 3 Brazilians aged over 60 have lost all of their teeth

Ancient Colombian people with no descendants

Indigenous people who lived in Colombia 6,000 years ago left no descendants

Second-hand clothes pollute the air and rivers in Africa

Huge volumes of used clothing sent to Africa are polluting rivers

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Backward Roland Garros

It looks like a tennis ball, but it is actually a microstructure that could be used to produce refractory ceramics

The bars of time

Research finds rarities and widens access to little-known musical archives

A national voice

New studies revisit the legacy of Jorge Amado, revealing an author deeply engaged with racial, class, and gender issues

To locate people lost at sea

A nanosatellite developed in Brazil is designed to help rescue small boats during maritime emergencies

Microwaves to hunt tumors

New generation of imaging systems will avoid the breast compression and radiation of traditional mammography

The light of sound

Controlling interactions between photons and phonons could generate more refined lasers and facilitate quantum information processing

Triple suffocation in the ocean

Compound extreme events consisting of heatwaves, high acidification, and chlorophyll scarcity have become frequent in the South Atlantic since 2009

From the forest to the air

Gas emitted by trees in Amazonia increases the production of condensation nuclei, the origin of clouds, by 100 times

In-depth field insight

Drone-based radar facilitates crop monitoring, soil analysis, and the identification of underground mineral deposits, anthills, and bones

Native cassava farming

Farming by the Wauja people in Alto Xingu increases plant diversity and can help recover crops that have experienced genetic erosion

A surprising biological clock

Cyanobacteria live for approximately one day but can prepare themselves for seasonal changes