Selections from 2024: Sampling Shredded Stars in the Infrared
Dust might be responsible for hiding many tidally disrupted stars from view — but a new search at infrared wavelengths has revealed them at last.
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Selections from 2024: Which Came First, Supermassive Black Holes or Galaxies?
Researchers have proposed a new solution to a cosmic chicken-and-egg problem, suggesting a new role for supermassive black holes in the formation of stars in young galaxies.
Selections from 2024: Possible Proto-Galactic Fragments in the Milky Way
Two stellar structures discovered in the Milky Way this year may be fragments of proto-galaxies that formed before our galaxy was assembled.
Selections from 2024: First Unambiguous Detection of Water on an Asteroid
Researchers have spotted what might be water on asteroids before, but 2024 brought the first definitive detection.
Selections from 2024: Faintest Known Milky Way Satellite Discovered
The Milky Way’s faintest known satellite contains just 57 stars and has a total mass of 16 solar masses: meet Ursa Major III/UNIONS 1.
Selections from 2024: Mapping Quasars Across the Universe
Need more than a million quasars for your study of large-scale structure, accretion, or black hole growth? The Quaia catalog has you covered.
Selections from 2024: Earth Predicted to Gain (and Lose) a Mini-Moon
In September 2024, researchers predicted that the asteroid 2024 PT5 would soon join Earth as a short-lived “mini-moon.” Today, we’re giving a brief recap of how the prediction played out.
Selections from 2024: Weighing the North Star
Though the North Star appears to be an unwavering single star, it’s actually a variable star belonging to a triple star system. This year, researchers reported a new mass estimate for the North Star and discovered spots on its surface.
Monthly Roundup: Fun in the Sun
As the solstice nears, we’re taking a look at four recent articles that share new findings from our home star.
Dusty Crescents Around a Baby Star
What’s the origin of the dusty crescents in the disk around the young star MWC 758? Researchers have tracked the movements of two crescents to find out.