occultations and stellar intensity interferometry. As of 2020, VERITAS research had led to 58 Ph.D.'s and more than 100 peer-reviewed publications. As shown in the figure, VERITAS has detected 63 astrophysical sources of very high energy gamma rays (as of January 2020). The first VERITAS source catalog had only six sources. Some of the scientific highlights of VERITAS include: 2008: discovery of the first blazar of the intermediate frequency peaked BL Lacertae (IBL) type at very high energies, W Comae followed by a second IBL 3C 66A. 2009: discovery of the first starburst galaxy to emit at gamma-ray energies, the Cigar Galaxy or M 82. This result was significant because it represented the first extragalactic object detected where the gamma rays are thought to be produced through typical astrophysical processes found in our Galaxy, as opposed to extreme processes found in the jets of active galactic nuclei. 2010; detection of extended gamma-ray emission from the Jellyfish Nebula or IC 443, followed by detailed morphological studies by VERITAS which, when combined with data from Fermi-LAT, provide strong evidence for the acceleration of cosmic rays by a Galactic supernova remnant. 2011: discovery of a new and unexpected component of gamma-ray emission above 100 GeV from the Crab Pulsar, seriously challenging existing pulsar models. 2011: discovery of TeV gamma-ray emission from the Tycho supernova remnant,; this remnant resulted from one of the few historical supernovae in our Galaxy. 2013: locating the gamma-ray emission in the jet of an active galactic nucleus, through the combination of VHE gamma-ray observations made by VERITAS and high angular resolution observations made by the Very Long Baseline Array. 2015: detection of TeV gamma rays from the quasar PKS 1441+25 at a redshift value ~ 1, indicating the general transparency of the universe to photons at these energies. 2018: detection of VHE gamma rays from direction of the BL Lac object TXS 0506+056, that is coincident with the high-energy neutrino event IC 170922A reported by the IceCube neutrino telescope. 2019-2020: direct measurement of stellar angular diameters by an imaging atmospheric Cherenkov telescope and demonstration of stellar intensity interferometry with a modern telescope system. VERITAS researchers have also pioneered the use of an IACT to carry out Citizen Science. To improve the detection of muon events, the Muon Hunter project was created on the Zooniverse platform. The project showed images taken with VERITAS and citizen volunteers had to classify the