  The proposed US Extremely Large Telescope (ELT) Program would secure national
open access to at least 25% of the observing time on the Thirty Meter Telescope
in the north and the Giant Magellan Telescope in the south. ELTs would advance
solar system science via exceptional angular resolution, sensitivity, and
advanced instrumentation. ELT contributions would include the study of
interstellar objects, giant planet systems and ocean worlds, the formation of
the solar system traced through small objects in the asteroid and Kuiper belts,
and the active support of planetary missions. We recommend that (1) the US ELT
Program be listed as critical infrastructure for solar system science, that (2)
some support from NASA be provided to ensure mission support capabilities, and
that (3) the US ELT Program expand solar-system community participation in
development, planning, and operations.
