Cosmos

Astronomy

The heavyweights of the Universe

A mechanism may explain the stars from neutrons that are bigger than normal

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Cover

Heaven cannot wait

Redefinition of the space program aims to speed up the launching of satellites

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History

The Sun stones

Blocks of granite carved in Amapá are aligned with the path of a star

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Memory

Mapping the New World

Astronomers determined latitudes in the Amazon and wrote about the region

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Astronomy

Solar shocks

The relation between explosions in the Sun and magnetic storms on Earth

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Astrophysics

A mirrored black hole

Cone of ions reflects image of mysterious object at the center of the galaxy

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Cosmology

Seeds of life in space

Cosmic rays may have generated molecules that formed animals and plants

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Memory

Records of a comet

Mathematician wrote about Halley's passage across Brazil 252 years ago

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Astrophysics

A slight flicker

Survey finds 900 new magnetic white dwarfs, a rare type of star

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Astrophysics

The Milky Way revisited

The galaxy's arms may be closer and not as spiral-shaped as had been thought

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Teaching Science

A school in orbit

Teachers and students build satellite in the São Paulo coast

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Astrophysics

On a safe course

Simulation explains why the Earth did not collide with the Sun

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Astrophysics

Gravitational kick

Fusion of galaxies expels black hole from its nucleus

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Memory

The rooftop telescope

George Marcgrave was born four hundred years ago

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Cover

Beings from space

Super-resistant bacteria might live outside Earth

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