Highlights

Agriculture

Low-phosphorus sugarcane farming

Sustainability measures could reduce the use of inorganic fertilizers by up to 63%

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Geochemistry

Stardust found in meteorite

Meteorite that fell in Australia in 1969 contains material up to 7.5 billion years old—older than our solar system

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physics

Big data and new materials

Scientists turn to digital mining techniques and huge databases of compounds in efforts to accelerate the discovery of new structures

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Science communication

Breaking out of the bubble

Academic journals in Brazil rarely use Facebook to share their content with the public, study shows

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Infrastructure

Vocational assessment

Public laboratories’ profiles determine their science and research output

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Scientometrics

Written by many hands

Study identifies a sharp rise in the number of articles signed by more than a thousand authors

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Funding

The house of open dialogue

Talks in Congress help stem budget cuts for science, technology, and innovation in 2020

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Interview

Augusto Damineli: Stellar interpreter

An astrophysicist recounts his discovery that the most-studied star beyond our Sun undergoes periodic dips in luminance, and is actually a system composed of two stars

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Cover

The inequality behind the balance

While the number of women scientists has been rising in Brazil, many still face challenging roadblocks

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COVER

Gender and Science

Ongoing dialogue with feminist theories opens new areas for research across various disciplines

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Biodiversity

The diversity of the Caatinga

The Caatinga is home to a range of flowering plants proportionally more diverse than the Amazon rainforest

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Economy

Undeclared foreign funding

The US Department of Education is investigating Harvard and Yale universities for failing to declare funding received from foreign governments

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Geography

Human activity alters river mouths

Amazon River delta is shrinking by 1 km2 per year because of siltation

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Zoology

What’s for dinner?

The cuttlefish eats less at lunch when its favorite dish is served for dinner

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Biodiversity

Colorful but discreet

If you look very closely through a patch of bromeliads, searching leaf by leaf, you may be lucky enough to find a brightly colored leafhopper

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