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Astronomy Aug 15, 2025

Dark star clusters or extreme dwarf galaxies? Astrophysicists revisit Ursa Major III's true nature

Ursa Major III, the faintest object in our galaxy, orbits the Milky Way at a distance of more than 30,000 light years. Until now, it was considered a dwarf galaxy, thought to consist mainly of dark matter due to its large ...

Astronomy Aug 11, 2025

Ultra-metal-poor star discovered in Milky Way's halo

By analyzing the data from ESA's Gaia satellite, astronomers from the University of Chicago, Illinois and elsewhere, have identified a new ultra-metal-poor star. The newfound star, designated GDR3_526285, turns out to be ...

Astronomy Aug 11, 2025

Hubble reveals intricate details in the Tarantula Nebula's star-forming clouds

This NASA/ESA Hubble Space Telescope image captures incredible details in the dusty clouds of a star-forming factory called the Tarantula Nebula. Most of the nebulae Hubble images are in our galaxy, but this nebula is in ...

Astronomy Aug 11, 2025

Dancing dwarf galaxies predict the Milky Way's future

A cosmic dance could be the future of the Milky Way as it tracks a course to collide with neighboring galaxies, a University of Queensland survey has found. The paper is published in the Monthly Notices of the Royal Astronomical ...

Astronomy Aug 6, 2025

Cloud–cloud collision sparks active star formation in Milky Way

A recent study led by Dilda Berdikhan, a Ph.D. student from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences, has uncovered compelling evidence that a cloud–cloud collision has triggered active ...

Astronomy Aug 5, 2025

Sweeping survey maps hundreds of satellite systems orbiting dwarf galaxies

We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves can have satellites—smaller galaxies bound by gravity that orbit a larger host, carrying with them ...

Astronomy Aug 5, 2025

Supergiant star's gigantic bubble surprises scientists

Astronomers have discovered a vast and expanding bubble of gas and dust surrounding a red supergiant star—the largest structure of its kind ever seen in the Milky Way. The bubble, which contains as much mass as the sun, was ...

Astronomy Aug 4, 2025

Hubble surveys supernova-rich spiral

Rich with detail, the spiral galaxy NGC 1309 shines in this NASA/ESA Hubble Space Telescope image. NGC 1309 is about 100 million light-years away in the constellation Eridanus.

Planetary Sciences Jul 31, 2025

Why land detection is critical for confirming exoplanetary life

How can identifying land on exoplanets help scientists better understand whether an exoplanet could harbor life? This is what a recently submitted study hopes to address as a team of researchers investigated how identifying ...

Astronomy Jul 28, 2025

Hubble spies swirling spiral NGC 3285B

The swirling spiral galaxy in this NASA/ESA Hubble Space Telescope image is NGC 3285B, which resides 137 million light-years away in the constellation Hydra (the Water Snake). Hydra has the largest area of the 88 constellations ...

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