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Researchers use NVST high-resolution data to study chromospheric fibrils around quiescent filament

Using high-resolution data from the one-meter New Vacuum Solar Telescope (NVST), a research team led by Prof. Yan Xiaoli from the Yunnan Observatories of the Chinese Academy of Sciences (CAS) has conducted an in-depth study on the physical properties and oscillations of chromospheric fibrils surrounding a quiescent filament.

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Planetary scientists link Jupiter’s birth to Earth’s formation zone

New research from Rice University suggests that the giant planet Jupiter reshaped the early solar system in dramatic ways, carving out rings and gaps that ultimately explain one of the longest-standing puzzles in planetary science: why many primitive meteorites formed millions of years after the first solid bodies.

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Satellites and space trash threaten ozone layer and space safety

Every year, we shoot several thousand satellites and other objects out into space. When satellites die, they become space trash that threatens aerospace safety.

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Magnetically guided streamer funneling star-building material into newborn system in Perseus

A team of astronomers led by Paulo Cortes, a scientist with the U.S. National Science Foundation National Radio Astronomy Observatory and the Joint ALMA Observatory, have made a groundbreaking discovery about how young star systems grow.

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3 billion-year-old white dwarf still consuming its planetary system challenges previous assumptions

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white dwarf. Though Earth-sized, this dense remnant will retain much of the sun’s gravitational influence.

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Hidden in the sun’s glare, this asteroid is uncomfortably close to earth

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time, many of them eventually became part of the rocky planets. What’s left of the space rocks are mostly gathered in the main asteroid belt. […]

Telescope hack opens a sharper view into the universe

A novel imaging technique used for the first time on a ground-based telescope has helped a UCLA-led team of astronomers to achieve the sharpest-ever measurement of a star’s surrounding disk, revealing previously unseen structure.

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Scientists release new survey of the biggest objects in the universe

Scientists have released a new study on the arXiv preprint server that catalogs the universe by mapping huge clusters of galaxies.

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Simulations reveal how emission height affects pulse nulling in pulsars

A radio pulsar is like a cosmic lighthouse, a highly dense, rapidly rotating star that emits beams of radio waves. If Earth happens to be in the path, a “pulse” of radio waves will be detected.

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Exploring how dark matter alters electron-capture supernovae and the birth of neutron stars

Electron-capture supernovae (ECSNe) are stellar explosions that occur in stars with initial masses around 8–10 times that of the sun. These stars develop oxygen-neon-magnesium cores, which become unstable when electrons are captured by neon and magnesium nuclei.

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Astronomers identify dozens of stellar streams with Gaia

Using ESA’s Gaia satellite, astronomers have detected 87 stellar streams associated with globular clusters (GCs) in our Milky Way galaxy. The discovery, which doubles the number of known GC stellar streams, was detailed in a research paper published October 16 on the arXiv pre-print server.

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How spacefaring nations could avoid conflict on the moon

In the 1960s, Frank Sinatra’s song “Fly Me to the Moon” became closely associated with the Apollo missions. The optimistic track was recorded in 1964, when US success against the Soviet Union in the moon race was not assured.

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‘Messy’ galaxies in the early universe struggled to settle, Webb reveals

Astronomers using the James Webb Space Telescope (JWST) have captured the most detailed look yet at how galaxies formed just a few hundred million years after the Big Bang—and found they were far more chaotic and messy than those we see today.

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Sentinel-4 offers first glimpses of air pollutants

The new Copernicus Sentinel-4 mission has delivered its first images, highlighting concentrations of atmospheric nitrogen dioxide, sulfur dioxide and ozone. Despite being preliminary, these images mark a major milestone in Europe’s ability to monitor air quality all the way from geostationary orbit, 36,000 kilometers above Earth.

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New telescope opens window to southern sky

A powerful new telescope has captured its first glimpse of the cosmos, and could transform our understanding of how stars, galaxies and black holes evolve.

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