Highlights from AAS Nova: 3–16 August 2025

AAS Nova provides brief highlights of recently published articles from the AAS journals, i.e., The Astronomical Journal (AJ), The Astrophysical Journal (ApJ), ApJ Letters, ApJ Supplements, The Planetary Science Journal, and Research Notes of the AAS. The website's intent is to gain broader exposure for AAS authors and to provide astronomy researchers and enthusiasts with summaries of recent, interesting research across a wide range of astronomical fields.

The following are the AAS Nova highlights from the past two weeks; follow the links to read more, or visit AAS Nova for more posts. You can also sign up to receive emails each time a new post is published.

15 August 2025
Examining Earendel: Is the Most Distant Lensed Star Actually a Cluster?
An incredible beacon from the first billion years of the universe, Earendel has been touted as the most distant single star ever seen — but it might not be a single star at all.

13 August 2025
Ultra-High-Energy Neutrino Emission on the Extragalactic Express: A Mystery
Astrobites reports on the three galactic suspects in the case of an ultra-high-energy neutrino.

11 August 2025
Potential Discovery of a World Next Door
JWST provides new evidence that one of our nearest neighbor stars, Alpha Centauri A, might host a giant planet in its habitable zone.

8 August 2025
Supermassive Black Holes and Stripped Subgiants: Significant Signals for Future Gravitational Wave Detectors
When a supermassive black hole captures a significantly smaller object, the interaction could produce gravitational waves that have not yet been detected. A new study explores such events and how future gravitational wave detectors may be able to feel them for years to come.

6 August 2025
Distant Little Red Dot Hosts a Huge (and Growing) Black Hole
The “little red dot” CAPERS-LRD-z9 is the most distant object to show the characteristic broad emission lines of fast-moving gas around a black hole.

5 August 2025
What’s Going On Inside GJ 486b?
Astrobites reports on a warm, rocky exoplanet and what might be hidden beneath its atmosphere.

4 August 2025
Blown Away by the Winds of NGC 4151
New observations from the X-Ray Imaging and Spectroscopy Mission (XRISM) show the multilayered winds of NGC 4151 in a whole new light.

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