Space Shuttle thermal protection system
On February 1, 2003, the Space Shuttle "Columbia" was destroyed on reentry due to a failure of the TPS. The investigation team found and reported that the probable cause of the accident was that during launch, a piece of foam debris punctured an RCC panel on the left wing's leading edge and allowed hot gases from the reentry to enter the wing and disintegrate the wing from within, leading to eventual loss of control and breakup of the shuttle.
Columbia University
Further student protests, including hunger strike and more barricades of Hamilton Hall and the Business School during the late 1970s and early 1980s, were aimed at convincing the university trustees to divest all of the university's investments in companies that were seen as active or tacit supporters of the apartheid regime in South Africa. A notable upsurge in the protests occurred in 1978, when following a celebration of the tenth anniversary of the student uprising in 1968, students marched and rallied in protest of university investments in South Africa. The Committee Against Investment in South Africa (CAISA) and numerous student groups including the Socialist Action Committee, the Black Student Organization and the Gay Students group joined together and succeeded in pressing for the first partial divestment of a U.S. university.