MIThenge is happening this afternoon at MIT’s Infinite Corridor.
As viewed from a stationary point on the earth, the path of the sun through the sky is roughly a circle which moves north and south as the seasons go by. In mid-November and in late January every year, the circular path crosses the axis of MIT’s Infinite Corridor, which runs a distance of 825 feet (251 meters) from the main entrance on Massachusetts Avenue through Buildings 7, 3, 10, 4 and 8. When this happens, the setting sun can be seen from the far end of the corridor. By analogy with Stonehenge, this phenomenon is sometimes called “MIThenge”. (The same cannot be seen at sunrise because the other end of the infinite corridor is blocked by Building 18.)