Tourists are dwarfed by the Very Large Array in 2005. The facility, on the Plains of San Agustin, 50 miles west of Socorro, N.M., has been closed as a result of the government shutdown. The VLA consists of 27 radio antennas linked together to simulate the capabilities of a single dish 17 miles in diameter. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images

Out of the 29 states in which at least 40 percent of graduates took the ACT, only Minnesota had more than half of its students meet at least three college-readiness benchmarks. ACT hide caption

itoggle caption ACT