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Very Energetic Radiation Imaging Telescope Array System (VERITAS)

Gamma rays don’t pierce Earth’s atmosphere, but when they strike the air, they produce faint flashes of visible light. The Very Energetic Radiation Imaging Telescope Array System (VERITAS) is a set of ...
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SAO/NSF Solar REU Program

This summer, scientists from the Solar and Stellar X-Ray Group (SSXG) and the Solar, Stellar, and Planetary Group (SSP) at the Center for Astrophysics | Harvard & Smithsonian (CfA) will host ...
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REU FAQ

Application Content Questions: If you can't find an answer to your question at our FAQ page, please email us at [email protected]. Please check your SPAM folder for email from ...
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Radio and Geoastronomy

The Center for Astrophysics | Harvard & Smithsonian Radio & Geoastronomy (R&G) division explores the Universe using the low-energy portion of the electromagnetic spectrum, including the radio, ...
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CfA Publications

Each week, CfA scientists publish new research across the span of astronomy, astrophysics, astrochemistry, geosciences and engineering. Explore our most cutting-edge work with the descriptions below.
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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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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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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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Event Horizon Telescope Makes Highest-Resolution Black Hole Detections from Earth

The Event Horizon Telescope (EHT) Collaboration has conducted test observations achieving the highest resolution ever obtained from the surface of the Earth, by detecting light from the centers of ...
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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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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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'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 ...