You Were Cool, Betelgeuse
What could explain Betelgeuse’s recent odd dimming? Astrobites follows the red supergiant’s rise to fame (and in magnitude).
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Life Beyond the Habitable Zone
Can radioactive decay keep a planet warm enough that it could host liquid water — and life — even outside of its star’s habitable zone?
Looking at the Insides of Stars
Planet-finding missions don’t just help us discover new planets — they can also be used to study internal motions in stars!
Exploring a Cluster’s Stragglers
Why are some cluster stars unusually bright and blue? A closer look at the Collinder 261 open cluster sheds some light on these straggling members.
Compton-Thick or Thin? Classifying NGC 5347
Astrobites reports on the properties of one active galaxy’s nucleus — which could help solve a long-standing mystery about X-rays in our universe.
Featured Image: Playing Harps in the Radio Sky
Look closely at this radio image and you might see why scientists have named this phenomenon a radio “harp”.
Gravitational Waves After Galaxy Collisions
Collisions of tiny galaxies may be responsible for forming the black-hole binaries that we’ve recently seen merge.
Exploring Our Star with SunPy
How can solar physicists analyze their mountains of observational data? A new Python-based software package may help.
The TESS Mission’s First Earth-Like Planet Found in an Interesting Trio
Astrobites reports on the TESS mission’s discovery of an Earth-like planet in the habitable zone of its star — and the puzzle of how this system formed.
ALMA Explores Possible Interacting Twin Disks
Why do many young stars undergo bright outbursts? New observations of a flaring system may provide an answer.
Making Stars at the Beginning of the Universe
What were the first galaxies up to? New radio observations tell us about star formation when the universe was only a billion years old.
A Pulsed Discovery in Omega Centauri
A recent study has unveiled a new discovery at the heart of globular cluster Omega Centauri: five long-anticipated pulsars.