The scientific objectives of VERITAS are remarkably similar to those of the other GeV - TeV projects (including GLAST, MAGIC, and HESS) slated for construction and operation in the next decade. Recent observations by the Whipple Observatory Gamma-Ray Collaboration and other ground-based groups using the imaging technique have demonstrated the rich scientific content of the 100 GeV - 10 TeV gamma-ray band.

Although less than 1% of the sky has been surveyed by the imaging technique at 300 GeV, ten sources have been observed with high signal to noise: 3 pulsar driven supernova remnants, The Crab Nebula (Weekes et al. 1989), PSR B1706-44 (Kifune et al. 1995) and Vela (Yoshikoshi et al. 1997), 2 shell type supernova remnants SN 1006 (Tanimori et al. 1997) and Cassiopeia A (Aharonian et al. 2001) and 5 BL Lacertae type active galactic nuclei, Mrk 421 (Punch et al. 1992), Mrk 501 (Quinn et al. 1996), 1ES 2344+514 (Catanese et al. 1998), 1ES1959+650 (Nishiyama et al. 2000) and H1426+428 (Horan et al. 2001).