ALT A realistic simulation of the Thirty Meter Telescope's Secondary Mirror System. Image credit: TMT International Observatory

ALT CAD renderings of the sub-aperture Fizeau Test System for M2 optical surface metrology. Image credit: University of Arizona

ALT M2 Metrology and Polishing FDR participants at University of Arizona in Tucson and remote.

ALT A supernova remnant. The center of the image contains a dense green cloud, shaped like a keyhole. Within this keyhole, there is a dark spot, composed of even denser gas. Outside of this cloud of gas is a ring of dense orange gas and dust that becomes more diffuse as farther away from the center. The innermost part of this dense orange ring contains brighter orange clumps of glowing gas. Outside of these structures, both above and below them, are very faint orange rings of gas and dust. There are several bright white stars, three of which show a six-pronged diffraction pattern brought about by the Webb space telescope. Several other white stars are strewn throughout the image. The image is watermarked \u201CCredit:NASA, ESA, CSA, Mikako Matsuura (Cardiff University), Richard Arendt (NASA-GSFC, UMBC), Claes Fransson (Stockholm University), Josefin Larsson (KTH).\u201D

ALT JWST NIRCam view of the nearby, grand-design “Whirlpool” spiral galaxy, M51, is only observable by a northern hemisphere telescope. Credit: ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST team.

ALT Rendering of IRIS mounted under NFIRAOS on TMT.

ALT Simulated galaxy at a redshift of ~1 as observed by the IRIS Integral Field Spectrograph in 2 hrs. Hundreds of spatially sampled spectra allow astronomers to dissect galaxies and understand their kinematic structure (right), their star formation rates, and metallicities (credit UCSD OIRLab).

ALT Cross-sectional view of IRIS pointing out major subsystems.

ALT IRIS team and FDR-1 reviewers and observers online and in-person.