Marcos Pivetta

Obituary

Niède Guidon exalted and preserved rock art sites in Serra da Capivara, in the state of Piauí

The archaeologist's work led to the creation of a park in the interior of Piauí and further studies in the semiarid region

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Cover

Brazil’s carbon footprint determined by deforestation and agriculture

The two sectors account for 70% of the country’s greenhouse gases emissions

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Interview

José Roque: Physicist talks about the Sirius accelerator and Brazil’s first maximum biosafety level laboratory

Director-General of the Brazilian Center for Research in Energy and Materials (CNPEM) won the 2025 Admiral Álvaro Alberto Award

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Astrophysics

Simulation suggests that Mercury formed from a glancing collision with a body of similar mass

Impact would have ripped away part of the planet's mass and shaped its current geological composition

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Astrophysics

Far reaches of the Solar System could be home to another planet

Study suggests the existence of a new world with a mass 7.5 times greater than Earth

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CLIMATE CHANGE

Global warming amplifies heat waves, which could affect Brazilian cities up to 15 times a year

This type of extreme event has become more frequent, more intense, and longer-lasting in recent decades

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ASTROPHYSICS

Two dwarf satellite galaxies discovered near the Milky Way

Aquarius III and Leo VI each have less than 5,000 stars, a very low number for this type of formation

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ASTROPHYSICS

Giant atoms could be the basis for more refined quantum sensors

Controlling the so-called Rydberg state is the key to producing this type of structure

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ASTROPHYSICS

Hotter dry season reduces survival rate of Amazonian birds by 63%

Impact of 1 °C increase in average temperature was observed on 29 species living in a preserved area of the rainforest

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BIOENERGY

Enzyme from bacteria in the soil may increase productivity of second-generation ethanol

Microorganism protein breaks down cellulose in sugarcane bagasse into smaller sugar, which ferments more easily

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CLIMATE CHANGE

2024 was the first year with global warming above 1.5 °C

All continents broke their average temperature record except for Oceania and Antarctica

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ATMOSPHERIC CHEMISTRY

Gas in the Amazon rainforest accelerates cloud formation

Trees emit isoprene, which reacts with other molecules and increases the production of cloud condensation nuclei 100-fold

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Climate change

Global levels rise, while national levels fall

Greenhouse gas emissions are increasing worldwide but are decreasing in Brazil because of reduced deforestation in the Amazon

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Interview

José Nelson Onuchic: Genetic structure modeler

Brazilian physicist who specializes in protein and DNA folding helped restore the genome of the woolly mammoth

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Climate changes

The suffocation of Earth

Record greenhouse gas emissions result in unabated global warming

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Astrophysics

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

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Nobel Prize

2024 Nobel Prize honors researchers in the field of artificial intelligence

The physics and chemistry prizes were awarded to scientists who created computational tools

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Pesquisa FAPESP 25 years

Research topics that have stood out since the magazine was launched in 1999

A diverse range of topics, from climate change and exoplanets to ultra-processed foods, have influenced the direction of science and technology over the past two and a half decades

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Interview

Miguel de Barros: The sea swallowing the land

Sociologist from Guinea-Bissau discusses loss of arable land and rising food insecurity due to impact of climate change in West Africa

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Global Warming

The world has been around 1.5 °C warmer for over a year

It is the longest period in recent history in which the planet has experienced such a dangerous increase in average temperature

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Climate change

Injecting particles into the atmosphere could temporarily reduce global warming

The controversial technique of releasing aerosols could reduce the amount of sunlight reaching Earth, but the negative side effects might outweigh the benefits

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Interview

Bruno Geloneze: Injections alone will not solve the problem

New anti-obesity drugs work well, says UNICAMP endocrinologist, but they need to be combined with a good diet and exercise to produce lasting benefits

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ENVIRONMENT

Pantanal breaks wildfire record in first half of the year, reflecting an increase in fires across Brazil

The number of wildfires in the biome was 16 times higher than from January to June last year

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CÉSAR LATTES, 100

A major contribution

Lattes on Mount Chacaltaya in Bolivia, where mesons were recorded in nuclear emulsions

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CÉSAR LATTES, 100

The physicist who saw a bigger picture

César Lattes' studies were based on experiments with cosmic rays and the use of accelerators in particle physics

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ENVIRONMENT

Climate change and El Niño increased the frequency and intensity of rainfall in southern Brazil

Global warming doubled the likelihood of extreme precipitation, like the heavy rains of April/May, and increased the volume of rainfall in Rio Grande do Sul from 6% to 9%

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CÉSAR LATTES, 100

Supporting institutions

The physicist was one of the founders of the Brazilian Center for Physics Research (CBPF) and supported the creation of the CNPq

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CÉSAR LATTES, 100

A major contribution

The discovery of the pion led to a greater understanding of the cohesion of the atomic nucleus

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CÉSAR LATTES, 100

The physicist who saw a bigger picture

His studies were based on experiments with cosmic rays and the use of accelerators in particle physics

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Interview

Antonio Bianco: An adjustment to hypothyroidism treatment

The Brazilian physician based in the USA explains how he discovered that current hormone therapy could fail and proposes a correction to its use

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