Geology
GEOLOGY
A very special diamond
A diamond contains a mineral that has never been seen before
By Redação
Geology
Exoplanets with exotic rocks
The rocky planets orbiting stars outside our Solar System may have a very different chemical composition to Earth
By Redação
Video
Why do dunes grow?
Experiments suggest that crescent-shaped dunes can move and interact in five different ways | 5'35
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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 Redação
Biology
Rainforest marsupials
Study suggests opossums emerged in the Amazon about 40 million years ago
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 Redação
geography
Sea level controls volcano activity
The sea level may control the activity of many volcanoes on the planet
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Photolab
Marble columns
As groundwater flows through the limestone substrate, it dissolves the rock in underground systems called karsts
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Video
A speck of dirt to solve a crime?
Soil sample analysis can aid investigations and help solve crimes | 4'31
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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 Redação
Video
A weak spot on Earth’s magnetic field hovers over Brazil
Learn how the planet's invisible shield works, and what is the South Atlantic Anomaly | 3'34
By Redação
Geology
In the depths of a geyser
For the first time, geoscientists from the University of Utah and Yellowstone National Park, USA, have mapped the interior of the world's most powerful geyser
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Geology
Water on the near side of the moon
There is water on the Moon, and not only in the dark craters located near its poles
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Photolab
Ancient dunes
The sand dunes on the banks of the São Francisco River, the most extensive inland dunes in Brazil, began to form more than 20,000 years ago
By Redação
COVID-19
Seismographs used to measure social distancing
Due to the social distancing measures adopted to contain the pandemic, seismographs in large cities registered a significant reduction in the waves generated by ground movement
By Redação
Archaeology
30,000 years ago in the Americas
Mexican site suggests settlement of the Americas began 30,000 years ago
Astronomy
Asteroid showers on Earth and the Moon
About 800 million years ago, fragments of a large asteroid collided with Earth and the Moon
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Geology
A colossal eruption
One of the largest volcanic eruptions to have left a record on Earth occurred 8.7 million years ago
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Geology
Rain awakens volcano in Hawaii
An abnormal volume of rainfall in early 2018 may have intensified the eruption of Kīlauea, a volcano in Hawaii, USA, in May of the same year.
By Redação
Environment
Beaches at risk of disappearing
Half of the planet's beaches could disappear by the end of the century due to rising sea levels and erosion caused by climate change
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Astrophysics
Mars in super-high resolution
In March, NASA presented the highest resolution panoramic image ever taken of the surface of Mars
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Environment
Smoke at the top of the world
Since the eighteenth century, global industry has been leaving its mark at one of the highest points in the world: the Himalayas mountain range
By Redação