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Mystery Solved: Dust Cloud Led to Betelgeuse's 'Great Dimming'

The star Betelgeuse became visibly darker in 2019 and 2020, puzzling astronomers. New images show that the star was partially concealed by a cloud of dust, solving the mystery of the "Great Dimming" ...
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Astronomers Directly Detect How Turbulence Between Stars Distorts Light

Using a distant quasar as a beacon, researchers identified the tiny, turbulence-driven ripples imprinted on the quasar’s radio signal as it passed through a particularly chaotic region of the Milky ...
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The Tilt in our Stars: The Shape of the Milky Way's Halo of Stars is Realized

New data throws out the textbook picture of a spherical stellar halo and reinforces a dynamic origin story of two galaxies that collided billions of years ago. Cambridge, Mass. – A new study has ...
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New from JWST: An Exoplanet Atmosphere as Never Seen Before

Cambridge, Mass – The telescope's array of highly sensitive instruments was trained on the atmosphere of a "hot Saturn" — a planet about as massive as Saturn orbiting a star some 700 light-years away ...
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M87* One Year Later: Proof of a Persistent Black Hole Shadow

CfA astronomers helped lead a study discovering changes in the bright ring around M87's black hole, confirming the theoretical understanding of the variable and turbulent flow of material around black ...
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Alien Planet Found Spiraling to its Doom around an Aging Star

Cambridge, Mass. – For the first time, astronomers have spotted an exoplanet whose orbit is decaying around an evolved, or older, host star. The stricken world appears destined to spiral closer and ...
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Astronomers Discover Rare Distant Object in Sync with Neptune

This object, called 2020 VN40, is the first confirmed body that orbits the sun once for every ten orbits Neptune completes. Cambridge, MA — A team of astronomers led by the Center for Astrophysics | ...
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Astronomers Unveil Strong Magnetic Fields Spiraling at the Edge of Milky Way’s Central Black Hole

CfA astronomers led two new EHT studies that have produced the first polarized light image of the supermassive black hole at the heart of the Milky Way Galaxy. Cambridge, MA--A new image from the ...
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AI Helps Astronomers Discover a New Type of Supernova

Astronomers have discovered what may be a massive star exploding while trying to swallow a black hole, offering an explanation for one of the strangest supernovae ever seen. Cambridge, MA - ...
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'Space Archaeology' Reveals First Dynamic History of a Giant Spiral Galaxy

For the first time, astronomers used galactic archaeology techniques to trace the chemical "fossil record" of a galaxy outside the Milky Way Cambridge, MA (March 23, 2026) — A team of astronomers led ...
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Billions of Celestial Objects Revealed in Gargantuan Survey of the Milky Way

Cambridge, MA – A new astronomical survey is a portrait of gargantuan proportions. It shows the staggering number of stars bristling among the wispy bands of dust in our home galaxy, the Milky Way.
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Origin of Mysterious Radio Signal Possibly Discovered

CfA astronomers have led the discovery of what may be the source of a powerful burst of radio waves coming from another galaxy Cambridge, MA - Astronomers have discovered what may be the source of a ...