Geology

photolab

Caves born from the sea

Stromatolites, created by microbial activity, provide evidence of maritime activity in caves that are now far inland

By

Geology

In the depths of Iceland

Volcanologist identifies pattern after observing the eruption of Fagradalsfjall volcano for 50 days

By

PALEONTOLOGY

Myanmar fossils in foreign hands

Publication figures indicate that paleontologists took advantage of armed conflicts in Myanmar to gain access to fossils preserved in amber

By

Geophysics

Earthquakes in the sky

Atmospheric balloons at altitude of 20 kilometers detect earthquake in Indonesia

By

GEOLOGY

The Tonga megatsunami

Tonga tsunami in January may have been amplified by acoustic-gravity waves

By

Botanics

Farming with lunar soil

Plants cultivated in lunar soil grow slower and show more signs of stress than those grown in volcanic ash from Earth

By

Paleontology

São Paulo was once covered by forest

São Paulo Metropolitan Area was once covered by vast forest of araucaria trees between 180,000 and 135,000 years ago

By

GEOLOGY

Oldest rocks in South America found in Bahia

3.65-billion-year-old material found in the Chapada Diamantina region

By

BIOGEOGRAPHY

Water from the Amazon River separates Brazilian and Caribbean marine species

A sediment plume from the river penetrates thousands of kilometers into the Atlantic, home to its own fauna that differs to other regions of the ocean

By

GEOLOGY

Rising Andes in Patagonia

The Andes Mountain Range has been rising faster in Patagonia than in other regions

By

GEOLOGY

Computer simulations attempt to explain the origin of the Serra do Mar and Mantiqueira mountain ranges

A study by geophysicists from UNESP suggests the mountain ranges were formed by local processes, not influenced by the Andes

By

Geology

The São Francisco sands

The Xique-Xique dunes in Bahia were formed by sand carried from the São Francisco River by the wind over the last 100,00 years

By

Geochemistry

Witnesses to a primitive Earth

Rocks found in Minas Gerais contain evidence of pockets of oxygen from 400 million years before the gas accumulated in the planet’s atmosphere

By

Geophysics

Improving tsunami warnings

The magnetic field produced by a tsunami could be detected before sea levels rise

By

Geology

Atmospheric lakes over the Indian Ocean

A meteorologist has identified a new atmospheric phenomenon over the Indian Ocean

By

Geophysics

Shifting sands

Studies suggest crescent-shaped dunes can move and interact in five different ways

By

GEOLOGY

A very special diamond

A diamond contains a mineral that has never been seen before

By

Geology

Exoplanets with exotic rocks

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

By

Video

Why do dunes grow?

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

By

Cosmology

Super-impact on Titan

Collision with celestial body may have created an environment on Saturn's largest moon in which primitive life could emerge

By

Video

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

By

Heritage

Relevant rocks

Scientists identify 36 areas in Brazil with highly diverse geological structures and natural landscapes

By

Biology

Rainforest marsupials

Study suggests opossums emerged in the Amazon about 40 million years ago

By

Geology

Waiting for a ride

After an unsuccessful attempt in August, NASA’s Mars rover Perseverance collected two samples of Martian rock in early September

By

Soil science

Tracking crime

Soil sample analysis can aid investigations and help solve crimes

By

geography

Sea level controls volcano activity

The sea level may control the activity of many volcanoes on the planet

By

Photolab

Marble columns

As groundwater flows through the limestone substrate, it dissolves the rock in underground systems called karsts

By

Video

A speck of dirt to solve a crime?

Soil sample analysis can aid investigations and help solve crimes | 4'31

By

Oceanography

The Saga of the Paratethys

The world's largest lake formed 12 million years ago and then disappeared, giving rise to the Caspian and Black Seas

By

hydrology

Half of the world’s rivers dry up each year

More than half of the world's rivers and streams have a stretch that dries up for at least one day each year

By