NASA astronaut collects Moon rock

In this image, a NASA astronaut is on the Moon collecting lunar samples using a rake. This Moon landing was part of the Apollo 11 mission, which was the very first mission to land astronauts on the Moon. These astronauts were Neil Armstrong and Buzz Aldrin. Apollo 11 carried the first geologic samples from the Moon back to Earth. In all, astronauts collected 22 kg of material, including 50 rocks, samples of the fine-grained lunar soil and two core tubes that included material from up to 13 cm below the Moon's surface. These samples contained no water and provided no evidence for living organisms at any time in the Moon's history.