Periodic comets that Levy co-discovered include 118P/Shoemaker-Levy, 129P/Shoemaker-Levy, 135P/Shoemaker-Levy, 137P/Shoemaker-Levy, 138P/Shoemaker-Levy, 145P/Shoemaker-Levy, and 181P/Shoemaker-Levy. In addition, Levy is the sole discoverer of two periodic comets P/1991 L3 and P/2006T1. He is also the first to discover comets visually, photographically , and electronically.
On February 28, 2010, Levy was awarded a Ph. D. from the Hebrew University of Jerusalem for his successful completion of his thesis "The Sky in Early Modern English Literature: A Study of Allusions to Celestial Events in Elizabethan and Jacobean Writing, 1572-1620."
David and Wendee live in Vail, Arizona, home of the Jarnac Observatory.
David Levy is a prolific speaker, writer, and public astronomy outreach enthusiast, where he and his wife Wendee Levy are often involved in showing the public the night sky. Levy is available for personal appearances and lectures.
The Asteroid 3673 Levy was named in his honor. Levy was awarded the C.A. Chant Medal of the Royal Astronomical Society of Canada in 1980. In 1993 he won the Amateur Achievement Award of the Astronomical Society of the Pacific. In 2007, Levy received the Smithsonian Astrophysical Observatory's Edgar Wilson Award for the discovery of comets. In 2008, a special edition telescope, "The Comet Hunter" was co-designed by Levy.