The Solar Submillimeter Telescope (SST) is an unique instrument that has been
observing the Sun daily since 2001 bringing a wealth of information and raising
new questions about the particle acceleration and transport, and emission
mechanisms during flares. We are now designing its successor, the SSTng, that
will expand the scientific goals of the instrument, including non-solar source
observations.Comment: Accepted for the URSI GASS 2023, Sapporo, japan, 19-26 August 2023. 4
pages, 4 figure