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Proposing for Telescope Time

REVIEW PROCESS: Proposals are sorted by telescope and by instrument, and then distributed to the Time Allocation Committee (TAC). Proposals are ranked according to: Overall scientific merit ...
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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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CfA Scientists Named Prize Postdoctoral Fellows

Cambridge, MA (April 8, 2026) —The Center for Astrophysics | Harvard & Smithsonian is pleased to announce our incoming cohort of prize postdoctoral fellows, whose work spans the cosmic frontier from ...
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CfA Astronomer Allyson Bieryla Named 2026 Shapley Visiting Lecturer by the American Astronomical Society

Cambridge, MA (April 6, 2026) — The American Astronomical Society has named Allyson Bieryla a 2026 Shapley Visiting Lecturer. She will give a series of astronomy-themed lectures to students at the ...
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The CfA Decadal Plan

As one of the foremost astronomy and astrophysics institutes in the world, our success is rooted in the remarkable breadth of our science, the depth of our engineering prowess, our commitment to ...
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Analog Astronaut Kaley Brauer Explores the Human Side of a Mars Mission

When Kaley Brauer agreed to spend two weeks “on Mars,” she knew that if she wanted to go outside, she’d need to wear a space suit, and if she wanted to contact Earth, she’d deal with a 40-minute delay ...
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Global Astronomical Collaboration Achieves a 1% Precision Measurement of the Universe’s Local Expansion Rate

Cambridge, MA (April 2, 2026) — An international collaboration of astronomers has achieved the most precise direct measurement to date of the current expansion rate of the Universe. In a paper ...
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Scientists Report Most Precise Measurement Yet of the Universe's Expansion

Cambridge, MA (April 2, 2026) — An international collaboration of astronomers has achieved the most precise direct measurement to date of the current expansion rate of the Universe. In a paper ...
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Tools from Eclipse Inclusivo to Help Visually Impaired Enjoy 2026 Eclipse

Led by the Institute of Space Sciences, the project, whose team includes CfA's Allyson Bierlya, is producing 100 devices that transform light intensity into sound. The devices are being loaned free of ...
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Fifteen CfA Projects Among JWST Cycle 5 General Observer Program Awards

The awarded projects range from the earliest stars, galaxies and black holes to the formation and evolution of exoplanets in our galactic neighborhood. Cambridge, MA (April 1, 2026) — The JWST mission ...
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CfA Fellow Julia Santos Wins 2026 Laboratory Astrophysics Division Dissertation Prize from the American Astronomical Society

The award is given to an individual who has recently completed an outstanding theoretical or experimental doctoral dissertation in laboratory astrophysics. Cambridge, MA (March 31, 2026) —The American ...