WASHINGTON — The world is preparing to mark 50 years since man first stepped on the moon. 

Interest in the historic event is sure to ramp up even more as we get closer to the milestone anniversary moments from when the crew launched into space and when they landed on the moon. 

According to Google, these are the top five things people in the U.S. have been searching for this year related to Apollo 11 and the moon landing. 

When did Apollo 11 land on the moon?

Neil Armstrong and Buzz Aldrin landed the Lunar Module on the Sea of Tranquility on July 20, 1969.  

When did Apollo 11 launch?

The Saturn V rocket launched the Apollo 11 mission at 9:32 a.m. EDT on July 16,1969, from launch pad 39A at the Kennedy Space Center in Florida. 

Where did Apollo 11 land?

The Apollo 11 mission landed on a part of the moon called The Sea of Tranquility. 

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How long was Apollo 11 on the moon?

Neil Armstrong and Buzz Aldrin were on the moon for 21 hours and 38 minutes. However, a mere fraction of that -- 151 minutes -- was spent walking around the surface. 

Who was on Apollo 11?

The two names that everyone surely knows are Neil Armstrong and Buzz Aldrin. They were the astronauts who landed on the lunar surface. While all that was going on astronaut Michael Collins stayed behind in the command module. 

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When was the moon landing?

Apollo 11 landed on the moon on July 20, 1969. 

Is the moon landing fake?

No, the moon landing isn't fake, but there are still some people who insist it never happened. Nowadays the notion that the U.S. government faked it all is treated mostly as a punchline. 

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Who landed on the moon? 

During the historic Apollo 11 mission, astronauts Neil Armstrong and Buzz Aldrin landed on the moon. 

How many moon landings have there been?

There have been six manned missions that have landed on the moon: Apollo 11, 12, 14, 15, 16 and 17. Apollo 13 did a flyby but couldn't land on the lunar surface after a near-disaster on the way to the moon. 

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What countries have landed on the moon?

The United States is the only country to land a person the moon. However, Russia (then the USSR) and China are the only other countries who've successfully landed an unmanned mission on the moon. India is hoping by September to become the fourth country to accomplish that impressive feat. 

In April, a spacecraft from Israel crashed into the moon during a failed attempt at becoming the first privately funded lunar landing.

Japan, the European Space Agency and India have all been involved in sending orbiter probes or unmanned impact missions to the moon.

Meanwhile, President Trump has directed NASA to land American astronauts on the moon again by 2024.