Redação

From Tupi to Portuguese

Six letters written in ancient Tupi by indigenous peoples during the Brazilian colonial period have finally been transcribed and translated into Portuguese

Paint made of mercury and blood

A 1,000-year-old gold mask that belonged to a leader of the Sicán culture was painted with mineral pigment, human blood, and egg white

Worst diet for the body and the environment

Consumption of unprocessed or minimally processed foods has fallen over the last 30 years

Ants with women’s names

Ants with women's names

Scientists renounce national honor

In an open letter, 21 scientists awarded this year’s National Order of Scientific Merit renounced the honor

Exoplanets with exotic rocks

The rocky planets orbiting stars outside our Solar System may have a very different chemical composition to Earth

The great ocean fertilizers

Whales are the largest living beings on the planet and play an important role in recycling ocean nutrients

Public R&D funding in São Paulo

Integrity in times of open science

Under the feathers

Why do dunes grow?

Experiments suggest that crescent-shaped dunes can move and interact in five different ways | 5'35

Vaccination in decline

The COVID-19 vaccination pace has been decreasing worldwide

A promising antiviral

Molnupiravir reduced COVID-19’s hospitalization and death rate by nearly half in a phase 3 clinical trial of people with mild to moderate infections

Preventing new waves without lockdowns

A group of researchers decided to study how the virus could be kept under control without the need for repeated lockdowns

Everything as before

The Royal Swedish Academy of Sciences decided not to award this year’s Nobel Prize to the development of mRNA-based vaccines

Protozoan fossil in Brazilian amber

Researchers at the Federal University of Rio de Janeiro (UFRJ) have described a new extinct species of protozoan: Palaeohypothrix bahiensis

South America’s Endangered Oases

With only 4% of their area protected, fog oases are threatened by urbanization, mining, increased air pollution, and off-road trails

Recognition for Indigenous Scholar

Maria Manuela Ligeti Carneiro da Cunha was awarded the Almirante Álvaro Alberto Prize for Science and Technology in the Human and Social Sciences, Languages, and Arts category

New crop of CNPq researchers emeriti

Ten researchers were awarded the title of researcher emeritus by the Brazilian National Council for Scientific and Technological Development (CNPq)

The Amazon could be an inhospitable savanna by 2100

The Amazon could be an inhospitable savanna by 2100

The Lavoisiers, transformed

Researchers discovered important differences in the original composition of the iconic portrait of Antoine Lavoisier and his wife

Humans in the Americas 23,000 years ago

Fossilized footprints offer some of the most important evidence that humans first occupied North America much longer ago than has long been believed

Specialization Index

Specialization Index of scientific publications in selected fields

A collection of retracted articles

An article about the health benefits of broccoli was recently retracted, 12 years after it was published

Race to report clinical trial results

New rules on disclosing the results of clinical trials in the European Union come into force on January 31, 2022

Fertility clock

Genetic alterations to the biological clock could be linked to fertility disorders

The search for life on one of Saturn’s moons

Asteroid collision may have created favorable conditions to the appearance of primitive life forms on Titan | 4'10

Still too soon for booster doses

An international group of scientists argued against the idea of giving the majority of the population COVID-19 vaccine booster doses

Less working remotely

Researchers are trying to estimate the impacts on employee communication and the dynamics of collaboration

Study outlines COVID-19’s profile in African countries

Study outlines COVID-19's profile in African countries