Fig. 2
From: Surface environment of Phobos and Phobos simulant UTPS

Correlation-based mutual distances of 556 meteorites, 259 asteroids, and Phobos’s blue and red units visualized by t-SNE approach, which shows the correlations between C-type asteroids and C-type meteorites. Colors represent types of asteroids and meteorites as denoted in the bottom. Inset is the closeup of the upper middle part of the plot, which shows both the red and the blue units of Phobos is best matched with the Tagish Lake meteorite, which is surrounded by the greenish rectangle