Highlights

Agricultural engineering

New sensors help to optimize use of irrigation in the field

Devices developed in Brazil were designed to measure soil moisture

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Interview

Marco Antonio Chamon: Busy years ahead for Brazil’s space program

The Brazilian Space Agency’s recently appointed president announces new international collaborations as he prepares for a flurry of rocket and satellite launches

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New materials

Advances in 3D printing of human tissues

Artificially produced skin, livers, and intestines emerge as an alternative to testing cosmetics on animals

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Energy

The race for perovskite solar cells

Brazilian research groups are helping to advance research about a promising class of materials for photovoltaic applications

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Astrophysics

Star brightness changes every four years, lighting up part of the surrounding nebula

Cloud of gas and dust is illuminated by the wave phenomenon, known as a light echo

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Immunology

Cutaneous leishmaniasis may be aggravated by viral and bacterial coinfections

Cutaneous leishmaniasis may be aggravated by viral and bacterial coinfections

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Fetal medicine

Digital atlas identifies the ideal evolution of a baby’s brain during pregnancy

3D ultrasounds of the brains of 899 healthy babies were used to map development of the organ from the fourteenth week of pregnancy onwards

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Ecology

Caatinga shrinking

Agriculture has transformed 89% of typical native vegetation in Northeast Brazil

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Meteorology

Artificial intelligence could improve weather forecasting

Artificial intelligence could improve weather forecasting

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Climate change

COP28 acknowledges the role fossil fuels play in global warming, but stops short of banning them

United Nations conference held in Dubai recommends investing in clean and renewable energy sources

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Geosciences

Ground in Maceió has been sinking for 20 years

Salt mines caused tremors and cracks in five neighborhoods in the capital of Alagoas

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Data

Scientific collaborations between São Paulo and other states

Graphs show scientific collaborations between São Paulo and other states over time

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Good practices

Saudi universities suffer from purge of list of highly cited researchers

In just one year, the number of researchers linked to institutions in Saudi Arabia who were named on Clarivate’s Highly Cited Researchers list fell from 109 to 76

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Good practices

Study shows potential for ChatGPT to fabricate and defraud clinical trial results

AI technology is capable of generating false clinical trial data to support the conclusions of fraudulent scientific articles

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Good practices

High sensitivity

Social psychologists say that controversial research topics may be targeted by covert censorship, calling for more transparency in science

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