![Orbit of interstellar comet C/2019 Q4 (Borisov)](/sites/default/files/styles/crop_rectangle_21x9_to_1280/public/images/media/image/interstellar-object%20copia_0.jpg?h=3bf902f8&itok=vsoTnoth)
Gran Telescopio Canarias (GTC), in the Roque de los Muchachos Observatory (Garafía, La Palma). Credit: Daniel López/IAC.
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The spectrum acquired by GTC of interstellar comet C/2019 Q4 (Borisov) reveals that this object has a surface composition not unlike that found in Solar System comets.