Astronomy

ASTRONOMY

Thousands of craters and 17 rock types on the Moon

Geological maps of the Moon could help in the planning of future missions and construction of a lunar research base

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ASTROPHYSICS

Complex organic molecules found in the ice of nascent stars for the first time

Complex molecules associated to the origins of life identified in solid phase in two emerging stars

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Astrophysics

Strong magnetic field at the center of the Milky Way

Magnetic fields around the edge of the Milky Way's supermassive black hole

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Space

Tribute to the pioneers

Two large telescopes under construction have been named for American astronomers Vera Rubin and Nancy Roman

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Retrospect

In Japan, to see Venus

One hundred and fifty years ago, a Brazilian astronomer traveled halfway around the world to calculate the distance between the Earth and the Sun

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Astrophysics

Merging of neutron stars generates second-largest gamma-ray burst

Phenomenon produced rare earth metals in space

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Astrophysics

Concentrated energy

During its most recent period of maximum activity, the Sun emitted an unexpected escalation in high-energy gamma rays at its poles

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Astronomy

The Moon is shrinking

Cooling of the Moon’s core has caused it to shrink over the last few hundred million years

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Astrophysics

The oldest known black hole

James Webb Telescope captured indirect evidence of a supermassive black hole

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Astrophysics

Star brightness changes every four years, lighting up part of the surrounding nebula

Cloud of gas and dust is illuminated by the wave phenomenon, known as a light echo

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Astronomy

The challenges of living in space

Experiments confirm that living in space would not be easy

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Astronomy

Plasma waves higher than the Sun

Stars close to one another can cause plasma tides and enormous waves

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Astronomy

Satellite debris in the stratosphere

On returning to Earth, satellites and rockets leave metal chemical elements in the stratosphere

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Astrophysics

James Webb data challenges cosmology

Telescope observations fuel debate about the formation of galaxies and the speed at which the Universe is expanding

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Astronomy

Scars that last centuries

Storms on Saturn occur every 20 to 30 years and leave marks that last for centuries

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ASTROPHYSICS

Artificial intelligence helps distinguish spiral galaxies from elliptical ones

AI algorithms classify 160,000 groups of billions of stars from images obtained by a Brazilian robotic telescope

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Astronomy

Ages of the Moon

The Moon is 4.5 billion years old, but its current surface is younger

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Astronomy

Why we see fewer stars at night

Increased artificial light in the night sky hinders astronomical observations, study says

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ASTROPHYSICS

Dense, compact star could be made of strange matter

With 80% of the mass of the Sun and a radius of 10.4 kilometers, the object could be made up of free quarks

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Astronomy

Origin of the high temperature of the solar corona

Satellites help shed light on why the Sun's corona is so much hotter than its surface

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History

Medieval monks observed blood-red moons

Texts and paintings by medieval monks help accurately date major volcanic eruptions

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ASTROPHYSICS

Super telescope gets a funding boost

Giant Magellan Telescope to receive US$205 million in fresh investment, including US$5 million from FAPESP

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RETROSPECT

The sky, as seen from the Missions

With telescopes made alongside the Guaraní people of southern Brazil, Jesuit Buenaventura Suárez closely observed lunar and solar eclipses and Jupiter's moons in the eighteenth century

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Astronomy

Chinese probe examines soil from Mars

China's first Mars mission finds that the planet's soil is highly heterogeneous and geologically complex

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Astrophysics

Brazilian astronomers find “misplaced” ring around an object distant from the Solar System

A distant circular structure is found revolving Quaoar, an icy body located in the Kuiper belt

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Astronomy

Billions of stars now visible amidst the fine dust of the Milky Way

Telescope in Chile captures the most detailed image of the Milky Way's stars and dust clouds

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Geophysics

The ice of distant moons

Earth's inner core appears to be slowing down, which could cause subtle changes in the magnetic field that protects the planet

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Astronomy

Gamma-ray bursts hint at the existence of a new type of neutron star

A study led by a Brazilian scientist suggests that these celestial objects last less than 1 second and have a 20% greater mass than observed

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Astrophysics

Cluster of 58 galaxies discovered in the shadow of the Milky Way

The astrological structure is located about 2.2 billion light years from Earth in a region of space obscured by the center of our galaxy

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Physics

Dark matter could produce antimatter capable of crossing the Milky Way

Experiment carried out at the LHC particle accelerator indicates that half of the antiparticles generated in this way reach the vicinity of Earth

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