Monthly Roundup: Gravitational Wave Predictions and Comparisons
Gravitational waves from collapsars, mass-gap black holes, and local supermassive black holes are the subject of this Monthly Roundup.
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Giant Impacts Go Boom (Machine Learning Edition)
Astrobites reports on how machine learning can help researchers simulate the phase of planet formation in which planetary embryos interact, collide, and combine to form the planets we know and love.
Featured Image: The Black Eye Galaxy
Easily recognized by the dense band of dust swirled around its center, the Black Eye Galaxy is the subject of a new study that investigates the connection between galaxy structure and supermassive black hole properties.
How Much of Dark Matter Is Made Up of Tiny Black Holes?
Is dark matter actually ancient black holes the size of planets? New research places a limit on how much of the universe’s most mysterious matter could be made up of tiny black holes.
Charting the Cosmic Shoreline: Which Planets Have Atmospheres?
New observations of the M-dwarf exoplanet Gliese 486b help astronomers map the location of the cosmic shoreline, which separates planets with atmospheres from those without.
New Species of Dwarf Galaxy in the Galaxy Cluster Ecosystem?
Astrobites reports on the potential discovery of a dark-matter-free dwarf galaxy hiding in the tentacle of a jellyfish galaxy.
Celebrating 175 Years of The Astronomical Journal
The Astronomical Journal turns 175 this month — join us in celebrating the journal’s impact and looking back on its history.
Pointing to the Poles of Brown Dwarfs: Polar Vortex Possibilities
Often characterized as “failed stars,” brown dwarfs are cool, cloudy objects that are not fully understood. Could their poles be home to swirling winds that drive intriguing observational trends?
Old Telescope, New Tricks: Chasing Gravitational Waves Across the Sky
How can we track down colliding neutron stars as quickly as possible? New research shows that the nearly 20-year-old Swift Observatory might be our best bet.
The Galactic Golden Child Cassiopeia A Through the Lens of JWST
Astrobites reports on JWST observations that get up close and personal with the famous supernova remnant Cassiopeia A.
A Bubbly Origin for Odd Radio Circles
New simulations show how odd radio circles could form when supermassive black hole jets blow bubbles in intergalactic gas.
Discovery of a Lonely Galactic Hedgehog
The Hedgehog galaxy is one of the most isolated dwarf galaxies known — but despite its serene location, it might not have formed any new stars in the past 100 million years.