Which of the following are moons of Mars (may be more than one correct answer)?

Which of the following is true about Jupiter's moons (may be more than 1 correct answer)?

Titania, Oberon, and Triton are moons of which planet?

Who was the first woman in space?

Which mission was the platform for the first EVA (Extra-vehicular activity or "spacewalk")?

Which of the following did NOT have astronauts die?

This rocket scientist was inspired by seeing Sputnik fly overhead to study rocketry in his early teens. From his coal-company town in West Virginia, he and his rocket club, The Big Creek Missile Agency, designed modest-sized rockets and won the propulsion category of the 1960 National Science Fair. After serving in Vietnam, Hickam worked at the US Army Missile Command in Germany and Huntsville. Later, he moved to NASA, where he specialized in astronaut training. He trained crews for the Hubble Space Telescope’s deployment extra-vehicular activity (EVA) and the first two servicing missions.

This rocket scientist designed the Starthilfe (takeoff assist) rocket propulsion units for the Messerschmidt Me 163 and the vertical-takeoff Bachem Ba 349aircrafts, used by the German Luftwaffe in World War II. He also was awarded a patent in 1925 for suggesting that a catalyzed decomposition of hydrogen peroxide could provide oxygen for combustion.

This element has isotopes called protium, deuterium, and, tritium.

An older name for this element was hydrargyrum, which reflects its liquid nature and is the source of its chemical symbol.

This element's isotope 56 is “doubly magic” in that its nucleus has 28 protons and 28 neutrons; 28 is a “magic number” that carries special stability. As a result, isotope 56 is one of the most stable of all nuclei, and it is the heaviest nucleus that is normally produced during stellar nucleosynthesis.

This is the most common metal in the Earth's crust.