nasa image earthrise over the lunar horizon december 1968 The world watched NASA’s Apollo 11 Mission reach the moon in what Astronaut Neil Armstrong coined “one giant leap for mankind,” nearly 40 years ago on July 20, 1969. But since the Apollo Mission, there has been a shift in focus to robotic technology, allowing humans to expand space exploration beyond the Moon. Now, NASA pursues plans to revisit the moon. This year’s federal budget allocates $160.5 million towards space science and astronomy over the next four years, according to the Sunday Mail. Astronauts may walk the moon and establishing a presence there by 2020, and may use that as a stepping-stone for a manned mission to Mars.