Canisters are commonly filled with silica gel and other molecular sieves used as desiccant in drug containers to keep contents dry. Silica gel in a sachet or porous packet. A desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its vicinity; It is the opposite of a humectant. Commonly encountered pre-packaged desiccants are solids that absorb water.
Armstrong in November 2011 at the U.S. Capitol, when he and the other astronauts from the Apollo 11 mission were awarded Congressional Gold Medals. Former astronaut Neil Armstrong, known for his words, That's one small step for man, one giant leap for mankind, has died. The first man ever to walk on the moon was 82.
On 21 July 1969, right on schedule, Neil Armstrong became the first man to set foot on the Moon, stepping onto the Moon's surface in the Sea of Tranquillity at 0256 GMT.