Physics of the Cosmos
Exploring fundamental questions regarding the physical forces of the universe

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Habitable Worlds Observatory
Science Interest Group
(HWO SIG)

HWO News

Conference: Towards the Habitable Worlds Observatory: Visionary Science and Transformational Technology, held July 28–31, 2025



PIA19830: Pantheon of Planets Similar to Earth (Artist's Concept). Image Credit: NASA/Ames/JPL-Caltech

"Inspired by the vision of searching for signatures of life on planets outside of our solar system, and by the transformative capability such a telescope would have for a wide range of astrophysics, the priority recommendation in the frontier category for space is a large (~6 m diameter) IR/O/UV telescope with high-contrast (10-10) imaging and spectroscopy. This is an ambitious mission, of a scale comparable to the HST and JWST space telescopes. It is also one that will be revolutionary, and that worldwide only NASA is positioned to lead." (Text source: Decadal Survey on Astronomy and Astrophysics 2020 [Astro2020])


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Ultraviolet Astrophysics

Ultraviolet wavelengths are important to answer many questions in astrophysics. In addition to being sensitive to optical and near-infrared, Habitable Worlds Observatory will be sensitive to ultraviolet light.

White Papers

  • Lyman UV White Paper (non-peer-reviewed) [PDF]
  • LUVOIR Final Report Chapter 6 [PDF]
News
22 September 2025
Final Reminder: PhysCOS Second Early Career Workshop on 23-25 September 2025
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Astronomy and Astrophysics Advisory Committee Meeting on 26 September 2025
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4th TDAMM Workshop Registration Deadline Extended to 27 September 2025
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Call for 2026A Proposals for NASA Infrared Telescope Facility; Deadline 1 October 2025
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JWST Call for Proposals for Cycle 5; Deadline 15 October 2025
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