Did any astronauts go to the Moon twice?

Jim Lovell, John Young, and Eugene Cernan are the only three people to have flown to the Moon twice. Young and Cernan each set foot on it during their respective second lunar missions, while Lovell is the only person to have flown to the Moon twice without landing.

How Much Is a Apollo 11 code?

As statistical nerds have noted, the Apollo computer contained about 145,000 lines of code. Compare that to the estimated 62 million lines required today to power the social network Facebook, or the 2 billion it takes to operate Google.

How many missions were unsuccessful to the Moon?

After Apollo 11, NASA sent six more flights to the Moon: Apollo missions 12 through 17. Only Apollo 13 failed to make a lunar landing when an accident en route to the Moon forced the crew to abandon the mission and return to Earth after reaching lunar orbit. The last flight, Apollo 17, occurred in December 1972.

What have we brought back from the Moon?

Between 1969 and 1972 six Apollo missions brought back 382 kilograms (842 pounds) of lunar rocks, core samples, pebbles, sand and dust from the lunar surface. The six space flights returned 2200 separate samples from six different exploration sites on the Moon.

Are any of the astronauts that walked on the Moon still alive?

Neil Armstrong and Edwin “Buzz” Aldrin were the first of 12 human beings who walked on the Moon. Four of America’s moonwalkers are still alive: Aldrin (Apollo 11), David Scott (Apollo 15), Charles Duke (Apollo 16), and Harrison Schmitt (Apollo 17).

Does the moon have a core?

Uncovering details about the lunar core is critical for developing accurate models of the moon’s formation. The team’s findings suggest the moon possesses a solid, iron-rich inner core with a radius of nearly 150 miles and a fluid, primarily liquid-iron outer core with a radius of roughly 205 miles.

Can you see the American flag on the Moon?

Can you see an American flag on the moon with a telescope? Even the powerful Hubble Space Telescope isn’t strong enough to capture pictures of the flags on the moon. But the Lunar Reconnaissance Orbiter, the unmanned spacecraft launched in 2009, is equipped with cameras to photograph the moon’s surface.