LPL COLLOQUIUM: Nautilus: A Very Large-Aperture Space Telescope Constellation with a New Optical Technology for Large-Scale Biosignature Surveys

Dr. Dániel Apai Professor, Astronomy and Planetary Sciences University of Arizona

When

3:30 p.m., Aug. 30, 2022

Where

Abstract: Thorough, population-level understanding of habitable and inhabited planets requires systematic studies of large samples of planets. However, the very slow growth of the light-collecting area of space telescopes and their very high costs remain severely limiting factors for exoplanet and biosignature studies. I will introduce the Nautilus Space Observatory concept that is designed to spectroscopically characterize the atmospheres of 1,000 exo-earth candidates. Nautilus is enabled by a revolution in the space launch industry and by a novel optical technology: Multi-order diffractive engineered material (MODE) lenses. MODE lenses provide ultralight and easier-to-fabricate alternatives to primary mirrors and, thus, enable a new paradigm for very large space telescopes. Our goal is to develop a space telescope with a light-collecting area equivalent to that of a 50m-diameter space telescope, within the cost range that is realistic for a NASA Flagship-class mission. I will show our active UArizona-led technology development program, our latest MODE lens prototypes, supporting facilities, and progress on design, fabrication, alignment, and testing methods. I will describe the Nautilus Space Observatory and its science scope, and the exciting scientific opportunities such a mission will enable.

Zoom guidelines and information:

As a reminder, please keep yourself muted during the meeting unless you are speaking. If you have an important clarification question, please raise the “blue hand” in the Participant list before asking or you can ask a question in Chat window. For non-urgent questions, please wait until the Q/A time following the presentation. For those viewing the colloquium in room 308, refreshments will be served in the Kuiper atrium at 3:30 p.m.

***Refreshments are not permitted in the seminar room.***

Contacts