Printed

Ruy Caldas: From Grande sertão to plant biochemistry

At 84, the agronomist who cultivated research teams and programs across Brazilian universities looks back on his career

Nature-based solutions can inspire climate change adaptations

Brazilian guide launched at COP29 highlights interventions that could increase the resilience of coastal cities

Study finds 25 of Earth’s 35 vital signs are in critical condition

Records continue to be broken for parameters such as the planet's temperature, atmospheric CO₂ concentration, and biodiversity loss

The suffocation of Earth

Record greenhouse gas emissions result in unabated global warming

Lice, the origin of the kiss?

Human kissing may have arisen through evolution of a hygiene habit among primates

A retouched image

Image of the Sagittarius A* black hole published in 2022 may not show its actual shape

From Kumon classes to first scientific article

Student develops theorem that makes it simple to multiply numbers with repeating digits by nine

Gourmet vanilla only for agoutis

Vanilla chamissonis seeds, indigestible by omnivores, are consumed only by agoutis

The four requirements of a good diet

A healthy diet should be balanced, moderate, diverse, and adapted to individual needs

Research to protect the Congolian rainforest

Lack of researchers threatens rainforest conservation in Democratic Republic of Congo

First aid in the palm of your hand

Mobile app gives caregivers and educators guidance on first aid for common accidents involving children

South Africa bans GM corn

South Africa cancels commercial approval of drought-resistant genetically modified maize

Fossil helps understand how bird brains evolved

Skull from dinosaurs' time is exceptionally well preserved

Polar bears more exposed to pathogens

Rising temperatures in the Arctic increase infection risk for polar bears

Historical spaces and fresh air

Cemeteries should be appreciated as historical, artistic, and environmental heritage

Quickly mapping the rainforest

Brazilian team wins award at international competition Xprize Rainforest

Life in an oasis during the Bronze Age

Remnants of a six-acre fortified city in Saudi Arabia indicate slow urbanism in the region

Artificial skin now complete

Researchers create lab-based equivalent of human skin using human cells and collagen bioink

A welcome but insufficient counterflow

The lower the better

Sphere reveals a colorful streak that reflects the order of stainless-steel atoms

With a Biology degree, William Coelho chose music

Heading the Osesp chorus, he now splits his activities between concert halls and academia

Xingu Project seeks new partners to expand reach

UNIFESP's university extension program has been taking action on Indigenous health since 1965

The inspiring work of Luís Vaz de Camões

Books and events celebrate the 500^th anniversary of the birth of one of the greatest ever Portuguese-speaking poets

The motivations and challenges of popular entrepreneurship

The instability of the job market and growing appreciation of working-class culture is driving residents of poor regions to start their own businesses

Buildings need to be adapted to higher temperatures

Buildings need to be adapted to higher temperatures

Chinese flying car debuts in Brazil

Chinese-made EHang model completes first flight trial in São Paulo as Embraer’s eVTOL prototype nears flight-testing phase

Research indicates new uses for microalgae

In the lab, the microscopic organisms proved capable of producing fertilizer, fixing metals in effluents, and offering new strategies for biofuels; the challenge is to expand the scale

Mysterious water phenomenon can also be produced in quantum systems

Mpemba effect causes hot liquids to freeze faster than cold ones

Asteroid set to pass close to Earth in 2029 could create a meteor shower on the Moon 100 years later

Proximity to Earth could cause debris surrounding the asteroid to be pulled away by the planet’s gravitational field

Carbon emissions from wildfires increased by 60% between 2001 and 2023

The rise was mainly caused by fires in temperate and boreal regions, such as Canada