Greenland Telescope (GLT): Imaging the Black Hole Shadow

M87 is a promising candidate to reveal the shadow image of its supermassive black hole at its galactic center. Greenland Telescope (GLT) project [1] is aiming to image the black hole shadow for the first time using submillimeter-wave very long baseline interferometry (submm-VLBI) technique together with other submm telescopes all over the world, especially with the Atacama Large Millimeter/submillimeter Array (ALMA), the James Clerk Maxwell Telescope (JCMT), and the Submillimeter Array (SMA), to achieve micro-arcsecond resolution, powerful enough to resolve the black hole shadow.