Man's curiosity of space has led to many milestones in space exploration history. The first rocket was launched from Cape Canaveral in 1950 starting a new era. Yuri Gagarin became the first human to journey into outer space in 1961 when his Vostok spacecraft completed an orbit of Earth. Neil Armstrong and Buzz Aldrin were the first humans to walk on the Moon in 1969 when Apollo 11 landed on the lunar surface. Subsequent Apollo missions used lunar roving vehicles to further explore the Moon. Mars rovers like Opportunity have made discoveries about the planet's wet history and climbed geological features. Mysterious radio waves from an unknown source in a nearby galaxy were detected, unlike signals seen elsewhere. The Kepler spacecraft found