Carl Grillmair

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Carl Johann Grillmair (1959 – 16 February 2026) was a Canadian astronomer and astrophysicist. He was a research scientist at the California Institute of Technology beginning in 1997, where he studied exoplanets, galactic structure, and dark matter. He collaborated on prominent NASA telescope missions including the Hubble Space Telescope, Spitzer Space Telescope, and Wide-field Infrared Survey Explorer, and led the team that discovered water in the atmosphere of the hot Jupiter exoplanet HD 189733 b. On 16 February 2026, Grillmair was fatally shot outside his home in Llano, an unincorporated community in Antelope Valley, California.

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