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A Magnetar Bursting with Mysteries
We’re used to watching magnetars throw temper tantrums which involve large outbursts of energy in the form of X-rays. One magnetar, however, recently exhibited some unusual behavior during such an...
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What Fast Radio Bursts Tell Us About Galaxy Halos
In recent years, we’ve recorded hundreds of brief, powerful flashes of radio light originating from outside of our galaxy. In new work, scientists are now leveraging these enigmatic fast radio bursts...
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Finding Fire-Breathing Dragons in the Milky Way
Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we...
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The Eyes of GAIA: Peering Into Our Galaxy’s Variable Nature
Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we...
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Different Views of a Fast Radio Burst
Fast radio bursts are perplexing astrophysical phenomena. As their name suggests, they’re essentially short radio signals, but they pack a surprising amount of energy. More unusual is that some fast...
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Will Radio Bursts Reveal Hidden Baryons?
The Earth, your body, and the electronic device you’re reading this on are all made up of ordinary, baryonic matter. A new study has now used bursts of radio emission to probe whether the outskirts of...
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Giant Stars in Our Black Hole’s Neighborhood
How does a supermassive black hole affect its stellar neighbors? One way to explore this question is by searching for old, giant stars in the extreme environs of the galactic center. Crowded Quarters...
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Holding Together a Speeding Cloud
High-velocity clouds observed in our galaxy’s halo pose a conundrum: given their tenuous nature and large speeds, why haven’t they been ripped apart? New observations of one such cloud now provide a...
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Dwarf Galaxy or Giant Globular Cluster?
You might think that we’d already discovered all the large clusters of stars orbiting our galaxy. Surprisingly, there are still detections to be made — such as the recently discovered cluster FSR 1758....
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Selections from 2018: Looking for the Shadow of Our Galaxy’s Black Hole
Editor’s note: In these last two weeks of 2018, we’ll be looking at a few selections that we haven’t yet discussed on AAS Nova from among the most-downloaded papers published in AAS journals this year....
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New Detections of the Milky Way’s Supermassive Black Hole
A supermassive black hole lurks at the center of our galaxy — and we’re still trying to understand its structure and behavior. Now scientists have made new detections of Sgr A* in far infrared, helping...
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Featured Image: An Active Past for a Milky-Way Twin?
What would the Milky Way look like if the supermassive black hole at its center was a little more active? This stunning HST/WFC3 image of NGC 6744, spanning 160” x 160” (click for the whole view), may...
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Using Satellite Galaxies to Weigh the Milky Way
Weighing galaxies is a tricky business — especially when that galaxy is our own! In a recent study, scientists have tackled this problem by harnessing incredibly precise measurements of the motions of...
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Selections from 2017: Computers Help Us Map Our Home
Editor’s note: In these last two weeks of 2017, we’ll be looking at a few selections that we haven’t yet discussed on AAS Nova from among the most-downloaded papers published in AAS journals this year....
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Exploring Our Galaxy’s Thick Disk
What is the structure of the Milky Way’s disk, and how did it form? A new study uses giant stars to explore these questions. A View from the Inside Schematic showing an edge-on, not-to-scale view of...
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A Look at the Milky Way’s Outskirts
Studying the large-scale structure of the Milky Way is difficult given that we’re stuck in its interior — which means we can’t step back for a broad overview of our home. Instead, a recent study uses...
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Is S0-2 a Binary Star?
Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...
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Making and Breaking Clouds
Molecular clouds — which you’re likely familiar with from stunning popular astronomy imagery — lead complicated, tumultuous lives. A recent study has now found that these features must be rapidly built...
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Discovery of Two More Runaway Stars
Speeding stars running away from our galaxy pose an intriguing puzzle: where did these stars come from, and how were they accelerated to their great speeds? The recent discovery of two new runaway...
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Where Are the IceCube Neutrinos Coming From?
Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we repost...
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