California Institute of
    Division of Physics, Mathematics & Astronomy

Darek Lis

CV   Publications

Interstellar Trifecta

Discovery of Interstellar Chloronium

Largest, Most Distant Reservoir of Water

Ocean-Like Water in a Comet

"Fingerprints in Water" (CBC Quirks & Quarks)

Oceans of Water in a Planet-Forming Disk

Hyperactive Comets
Dariusz C. (Darek) Lis

Scientist, Jet Propulsion Laboratory

Ph. D., University of Massachusetts at Amherst, 1989.

Research Fellow in Physics, Caltech, 1989-92; Senior Research Fellow in Physics, 1992-98; Senior Research Associate in Physics, 1998-2015; Deputy Director of the Caltech Submillimeter Observatory, 2009-14; Visiting Associate in Physics 2015-2020; Scientist, Jet Propulsion Laboratory 2019-.

Email: dcl @

Research Interests:
  • Molecular astrophysics and astrochemistry of the interstellar medium, isotopic fractionation, deuteration.
  • Volatile composition of comets, origin of Earth's oceans.
  • Evolution of the molecular complexity, from the interstellar medium to the solar system objects.
  • Molecular cloud structure and star formation.
  • Interstellar medium in high-redshift galaxies.

CSO Caltech Submillimeter Observatory

Herschel Space Observatory