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A new study has found that a hidden bias in galaxy models can skew gravitational-wave measurements of how fast the universe is expanding. That finding complicates one of astronomy’s most promising ...

Galaxies are clouds of stars that range in both size and composition. Some contain hundreds of millions of stars while the largest galaxies can contain trillions of stars. And while it’s not entirely ...

Bringing us one step closer to solving the 'missing satellites problem,' researchers have discovered two new satellite galaxies. For years, astronomers have worried about how to explain why the Milky ...

Astronomers have detected ordered magnetic fields in galaxies so young that conventional models struggle to explain how those ...

Study reveals that the Euclid telescope may be underestimating the number of barred galaxies due to limitations in its images ...

Using the James Webb Space Telescope (JWST), scientists found that many galaxies started as thick discs before forming the thin discs we see now. This discovery helps answer a long-standing mystery ...

For years, astronomers have worried about how to explain why the Milky Way has fewer satellite galaxies than the standard dark matter model predicts. This is called the “missing satellites problem.” ...