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21st CENTURY EXPLORER
Are we there yet?
Why do astronauts eat tortillas instead of bread?
How would your body change in space?
How can we travel faster in space?
What will replace the Space Shuttle?
Why do robots travel places before people?
Why return to the Moon before going to Mars?
Why do we want to study and travel to Mars?
Where would a space explorer find water and oxygen?
What would you find on the Moon’s surface?
What would you hear in a weather report from Mars?
How will your imagination help you become an explorer?
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ARE WE THER YET?

SME: Chris Giersch and Jennifer Rochlis

“Are we there yet?” is a common question asked not only by restless children but also by explorers seeking new worlds. We are curious creatures who need to explore.

Imagine how different countries around the world would be if early explorers had not visited them. While the desire to explore may be “part of human nature,” early explorers were also motivated by greed, government, and religion.

Often explorers took more than they deserved, claiming land and possessions in the names of their countries and their rulers. Portugal, Spain, France, and England competed to increase their wealth and power, expanding their empires around the world. Their exploration had little to do with curiosity or “satisfying the human spirit.”

Yet, along the way, new discoveries expanded man’s view of the world. Portugal’s Vasco da Gama succeeded in reaching India and returned to Portugal with jewels and spices. Ferdinand Magellan, another Portuguese explorer, was the first to circumnavigate the globe.

In the name of Spain, the Italian explorer Christopher Columbus landed in the Bahamas in 1492. He never really set foot in America.

Looking for the “Fountain of Youth” in 1513, the Spanish explorer, Juan Ponce de Leon, was the first European to reach Florida.

Years later, in 1528, Alvar Núñez Cabeza de Vaca landed on the west coast of Florida, claiming that land for Spain. Over the next six years, his travels took him across what is now Texas, New Mexico, and Arizona.

Others followed. The first English colonists arrived in Virginia on April 26, 1607. These same colonists settled at what is now Jamestown.

What do these early explorers have in common with more modern explorers? Drive, courage, and the willingness to take risks are at the heart of any exploration.

While early exploration was ground level, via railroad, later exploration looked to the skies. Aviation began with the Wright Brothers first flight in 1902, and evolved 60 years later into Space exploration beginning with Russia’s cosmonaut Yuri Gagarin. On April 12, 1961. Gagarin was the first human to be launched into space. Alan Shepard followed with the American’s first launch into space less than a month later on May 5, 1961, in the Freedom 7 spacecraft. Then, on February 20, 1962, American astronaut John Glenn orbited Earth.

Later that year, on September 12, 1962, President John F. Kennedy challenged the United States to be the first country to land a man on the moon. He said, “We set sail on this new sea because there is new knowledge to be gained. But why, some say, the moon? We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.

The United States met this challenge. Neil Armstrong, the first human to step on the moon, took his historic walk on July 20, 1969 along with fellow astronaut Buzz Aldrin. Following this act of courage, five more Apollo missions landed ten more Americans on the moon, for a total of 12 Americans on the moon.

Since that time, NASA explorers have sent unpiloted probes throughout the solar system, created space stations, and developed re-usable piloted space shuttles.

NASA continues to set high goals and reach for new territories. NASA has stated that “Spaceflight is a continuation of the ancient human imperative to explore, discover, and understand.” Exploration will continue, using both robots and humans to explore and discover new worlds. Our future exploration of space will help us build a stronger understanding of “the Earth and other planets, bringing the lessons of our study of Earth to the exploration of the solar system, and ensuring that the discoveries made here will enhance our work there.”

Returning to the moon, studying and traveling to Mars, and reaching places beyond are our new goals and challenges for the Vision for Exploration.

Are we there yet? We’re getting closer.

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NATIONAL EDUCATION STANDARDS
National Science Education Standards (NSES)

Content Standard A: Science as Inquiry

  • Abilities necessary to do scientific inquiry (K–8)
  • Understandings about scientific inquiry (K–8)

Content Standard G: History and Nature of Science

  • Science as a human endeavor (K–8)

Unifying Concepts and Processes

  • Evidence, models, and explanation (K–8)

National Council for Geographic Education (NCGE)

The World in Spatial Terms

  • Standard 1: How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information.

International Technology Education Association (ITEA)

Technology and Society

  • Standard 6: The role of society in the development and use of technology.
  • Standard 7: The influence of technology on history.