Geography

Archival science

Memories Revealed

The unpublished collections of Celso Furtado and Joaquim Nabuco recently donated to research institutions promise new revelations

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Geography

The dance of the dunes

Researchers collect precise data on the movement of sand dunes in Lençóis Maranhenses

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Photography

Much more than a photographer

A retrospective on Marc Ferrez brings to light his dialogue with science and expands knowledge of his work

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GEOGRAPHY

The young Amazon

Central region of the rainforest may have formed just 45,000 years ago as wetlands receded

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Geography

Boundaries between the Amazon and the Cerrado

In the Brazilian states of Mato Grosso, Pará, Tocantins, and Goiás, some areas classified as Cerrado are, in fact, part of the Amazon

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Geography

The wandering North Pole

The North Magnetic Pole has been moving faster than expected from Canada toward Siberia, Russia, in recent years

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Interview

Alexandre Antonelli: At the forefront of science in royal gardens

In February, Brazilian biologist will take the role of scientific director of Kew Gardens in the United Kingdom

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Ecology

The fragile DNA of sharks

Overfishing could further decrease the naturally low genetic diversity of some commercially valuable species

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Photolab

Pre-Columbian Culture

Fragments of ceramic figures indicate that at the time there was a cultural connection between peoples across South America

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Sociology

Immigrants stimulate the economy in European countries

A study assessing immigration to Europe between 1985 and 2015 has concluded that immigrants have a positive effect on the continent's economy

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GEOSCIENCES

Polarized opinion

Declining strength of Earth's magnetic field fuels debate on the chances of the poles reversing for the first time in 780,000 years

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COVER

More people in the rainforest

New archaeological sites and evidence of plant domestication support the idea that pre-Columbian Amazonia was densely populated

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GEOSCIENCES

Scars of a cataclysm in Central Brazil

Rocks found in the states of Mato Grosso, Goiás, and São Paulo reveal earthquake and tsunami caused by a meteorite some 250 million years ago

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Remote Sensing

Groundwater seen from space

A new satellite system will soon resume collecting aquifer data from around the globe

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ARCHAEOLOGY

Occupation of primordial “Brazil”

Evidence suggests that hunter-gatherers inhabited all major regions of Brazil roughly 10,000 years ago

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Geography

A world unequally connected by rivers and roads

Researchers produced a global map that estimates the travel time from any point in the world to the nearest city with 50,000 or more inhabitants

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Botany

Colonization via water

Group of carnivorous plants recognized for being aquatic species originated in Brazil, indicates phylogenetic study

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Geoscience

Scars of a cataclysm in Central Brazil

Meteorite impact 250 million years ago caused earthquake and tsunami

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Biodiversity

The first global reptile map

An effort has mapped the global distribution of 10,064 reptile species

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Photolab

At the bottom of the Amazon

At the bottom of the Amazon

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ATLAS 

To take advantage of the Sun

Study indicates favorable areas for exploring solar energy in Brazil

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Biology

Study indicates that 4.6% of the world comprises protected areas for mammal conservation

4.6% of the world comprises protected areas for mammal conservation

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Oceanography

Sea levels along the Brazilian coast are expected to rise

Sea levels along the Brazilian coast are expected to rise

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geography

Private Earth-observing satellites come of age

Earth-observing satellites arouse interest among researchers

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URBAN GEOGRAPHY

A life within walls

Gated communities and shopping malls accentuate social and spatial separation

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Amazon

Age of the Amazon River estimated at 9 million years

A new study estimates that the river formed between 9.4 and 9 million years ago

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Zealandia

Zealandia, a new continent that is almost entirely submerged, proposed by geologists

A new continent that is almost entirely submerged, proposed by geologists

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GEOLOGY

The exposed depths of the Earth

Mapping helps to uncover origins of the Saint Peter and Saint Paul Archipelago

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MEMORY

The Empire’s river

Halfeld was the first to conduct a survey of the São Francisco River

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ZOOLOGY

Obama crosses the Atlantic

A flatworm named after a U.S. president is now spreading across Europe

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