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Astrobiology Sep 1, 2025

Habitable planet potential increases in the outer galaxy

What can the galactic habitable zone (GHZ), galactic regions where complex life is hypothesized to be able to evolve, teach scientists about finding the correct stars that could have habitable planets?

Astronomy Aug 29, 2025

Astronomers discover one of the most massive binary stars in the galaxy

A research team has used both archival Hubble Space Telescope data and new observations to precisely measure the binary star system NGC3603-A1. One star weighs about 93 times the mass of our sun, while its companion tips ...

Astronomy Aug 26, 2025

Observations detect rotating galaxy filament about 5.5 million light years long, connecting 14 galaxies

By analyzing the data from the MeerKAT International Giga-Hertz Tiered Extragalactic Exploration (MIGHTEE-HI) survey, astronomers have discovered a new rotating galaxy filament. The newfound filament is about 5.5 million ...

Astronomy Aug 25, 2025

Red galaxies provide new insights into the birth of the universe

Images taken with the MIRI infrared camera on the James Webb Space Telescope (JWST) have made it possible to observe the first galaxies in long-wavelength infrared light for the first time. Alongside a recent study published ...

Astronomy Aug 25, 2025

XMM-VID1-2075 is a massive, evolved and slow-rotating galaxy, observations suggest

Using the James Webb Space Telescope (JWST), astronomers have conducted spectroscopic observations of a high-redshift galaxy known as XMM-VID1-2075. Results of the observational campaign, presented August 14 on the pre-print ...

Astronomy Aug 21, 2025

Outrigger system traces brightest-ever radio burst to a nearby galaxy's single spiral arm

An international team of scientists, including Northwestern University astrophysicists, has spotted one of the brightest fast radio bursts (FRBs) ever recorded—and pinpointed its location with unprecedented precision.

Astronomy Aug 18, 2025

Why did Cosmic Noon galaxies emit so many cosmic rays?

Answers to some of cosmology's most pressing questions are obscured by simple dust. It concerns the Cosmic Noon, a period of time that began around 2 billion years after the Big Bang, when nearly all galaxies experienced ...

Astronomy Aug 18, 2025

Hubble examines low brightness, high interest galaxy

This NASA/ESA Hubble Space Telescope image zooms in on the feathery spiral arms of the galaxy NGC 45, which lies just 22 million light-years away in the constellation Cetus (the Whale).

Astronomy Aug 18, 2025

Excavating Eridu: Observations explore nature of massive ancient galaxy

By analyzing the data from the James Webb Space Telescope (JWST) and the Hubble Space Telescope (HST), astronomers from the University of Wisconsin-Madison and elsewhere have probed the properties of a massive and old galaxy ...

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 ...

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