society, is located near the second floor Blue Wing entrance to the Theater of Electricity in today's museum. Post WWII After World War II, the old Museum of Science building was sold, and the museum was relocated, again under the name Boston Museum of Science. Under the leadership of Bradford Washburn, the society negotiated with the Metropolitan District Commission for a 99-year lease of the land on the Charles River Dam Bridge, now known as Science Park. The museum pays $1 a year to the state for use of the land. Construction and development began in 1948, and the museum opened in 1951, arguably the first all-encompassing science museum in the country. In these first few years, the museum developed a traveling planetarium, a version of which is still brought to many elementary schools in the Greater Boston area every year. They also obtained during these early years "Spooky", a great horned owl who became a symbol or mascot of the museum; he lived to age 38, the longest any great horned owl is known to have lived. Today, a number of other taxidermed specimens remain on display, teaching children about the animals of New England and of the world. The Science Park/West End MBTA infill station was opened in August 1955, allowing easier access to the museum by public transportation. The Charles Hayden Planetarium was opened in 1958. Many more expansions continued into the 1970s and 1980s. In 1999, The Computer Museum in Boston closed and became part of the Museum of Science, integrating some of its educational displays, although the most of the historical artifacts were moved to the Computer History Museum in Mountain View, California. A major renovation and expansion took place during 2005 and 2006. In 2010, the Charles Hayden Planetarium was closed for renovation, and has since reopened. The main entrance to the museum straddles the border between the cities of Boston and Cambridge, and the boundary is indicated by a marker embedded in the floor inside the museum. In 2013, the Museum of Science was the venue for the first joint session of the Boston and Cambridge city councils, to discuss policy measures to improve retention of talented recent university graduates in the area. Future Starting in 2013, the Museum of Science has been undergoing a major renovation to upgrade the physical structure and develop new educational content. This $250 million campaign will upgrade