His research focuses on the chemistry and mineralogy of
asteroids and
comets as determined by
in situ laboratory analyses and spacecraft observations. This work is important for constraining the chemistry of the
solar nebula, understanding the origin of complex
organic molecules in the early
Solar System, and constraining the initial chemical inventories of the
terrestrial planets. He is an expert in the analysis of
extraterrestrial materials. In particular, he uses
inductively coupled plasma mass spectrometry (ICP-MS),
scanning electron microscopy (SEM),
transmission electron microscopy (TEM),
electron microprobe analysis (EPMA), and
X-ray diffraction (XRD) to study meteorites, lunar samples, and particles returned by the
Stardust mission. Lauretta is known for his experimental work on the formation of iron-bearing
sulfides in the
solar nebula. He also worked on the cosmochemical behavior of various elements, such as
mercury,
boron and
beryllium in
meteorites. Asteroid
5819 Lauretta was named in his honor. He serves as the
principal investigator on
NASA's
OSIRIS-REx mission to return at least of
regolith from
carbonaceous asteroid 101955 Bennu in 2023. ==Awards==