LAST, MAST, and ULTRASAT: Two arrays and a space-borne telescope

I will review the Large Array Survey Telescope (LAST), a 48-telescope array based on off-the-shelf components, its classification and follow-up (unidentical) twin - the Multi-Aperture Spectroscopic Telescope (MAST), and the ULTRASAT space-borne UV telescope,  to be launched in Q1 2028. We will review the design and merits of each system, and focus on unique capabilities for specific science cases such as the detection of SNe shock breakout, and the search of planetary systems, pollution, and RV measurements of White Dwarfs.