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The Submillimeter Array - Maunakea, HI

The SMA is a type of multiple-antenna observatory known as an interferometer, in this case consisting of eight radio dishes, each 6 meters in diameter. The eight antennas observe the same astronomical ...
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Solar and Heliospheric Observer (SOHO)

The Sun is the only star we can study in detail, providing us with the opportunity to observe stellar internal structure, magnetic fields, and atmosphere. Solar and Heliospheric Observer (SOHO), a ...
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CfA Colloquia

CfA Colloquia offer an opportunity for scientists, engineers, and staff to hear about topics at the forefront of astrophysical research from leaders in their field. Themes range from upcoming NASA ...
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'Interstellar Glaciers': NASA’s SPHEREx Maps Vast Galactic Ice Regions

In observations led by CfA scientists, NASA’s SPHEREx has mapped water, carbon dioxide, and carbon monoxide ices attached to the surface of tiny dust particles in clouds spanning hundreds of ...
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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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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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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 ...