Unsure If It’s a Really Massive Black Hole? Take an X-ray Scan!
Astrobites reports on “little red dots” in the early universe and how to use X-rays to determine if these galaxies host massive black holes.
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Signs of the First Stars in a Distant Galaxy
Meet RX J2129–z8He II: a remarkable high-redshift galaxy that might be home to some of the first generation of stars.
It’s Just a Phase: Dark Matter–Dominated Galaxies in the Early Universe
Billions of years ago, small galaxies may have had cores packed with dark matter. What would these galaxies look like today?
Modeling the Structure of the Circumgalactic Bathtub
Astrobites reports on simulations of the circumgalactic medium, a reservoir of gas that helps regulate a galaxy’s ability to form stars.
Featured Image: A New Portrait of Cassiopeia A
Thanks to JWST, the supernova remnant Cassiopeia A has a beautiful new portrait that has allowed astronomers to study the connection between molecules, dust, and supernovae.
Dimorphos, from Up Close and Far Away
A recent study merges different datasets to build a richer picture of Dimorphos, humanity’s first asteroid redirection target.
Monthly Roundup: The Allure of Temperate Exoplanets
This month, we’re exploring temperate exoplanets: how to find them, how to model them, and how to figure out if they host life.
Too Many Stars, Too Fast?
Astrobites reports on galaxies that may be forming a remarkable number of stars in the first few hundred million years of the universe.
A Surprise in Cygnus
A new survey revealed for the first time that Deneb, the 19th brightest star in the night sky, is not just a variable star but a polarimetric variable as well.
New Analysis Finds No Evidence for Tryptophan in Interstellar Cloud
Was an amino acid found in the interstellar medium at last, as reported last year? New research suggests that the search isn’t over yet.
Timing Black Holes’ Race to Merge Using Waves on the Stochastic Sea
Astrobites reports on efforts to study black holes across cosmic time via the observational limits on the gravitational wave background.
Featured Image: Seeing Triple
Multiple images of a single supernova gravitationally lensed by a massive galaxy cluster will allow researchers to calculate the expansion rate of the universe.