SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which are two main categories of technology that humans use to explore space?
A
artificial and remote
B
rockets and shuttles
C
satellites and orbiters
D
Manned and un-manned
Explanation: 

Detailed explanation-1: -Several kinds of space exploration technologies are used to explore space. For example, fly-bys, orbiters, landers, rovers, and telescopes can be used to observe, collect data, and take images far beyond Earth.

Detailed explanation-2: -Well-known products that NASA claims as spinoffs include memory foam (originally named temper foam), freeze-dried food, firefighting equipment, emergency “space blankets", DustBusters, cochlear implants, LZR Racer swimsuits, and CMOS image sensors.

Detailed explanation-3: -A manned aircraft can be used in contested environments where command-and-control is limited, autonomy is required, or policy restrictions exist. An unmanned aircraft has no aircrew to limit its range and endurance or has the risk of loss of life or the fear of being captured.

Detailed explanation-4: -The first artificial Earth satellite, Sputnik 1, was launched by the Soviet Union on October 4, 1957. The first human to go into space, Yuri Gagarin, was launched, again by the Soviet Union, for a one-orbit journey around Earth on April 12, 1961.

Detailed explanation-5: -In 1969, on Apollo11, the United States sent the first astronauts to the Moon, and Neil Armstrong became the first human to set foot on its surface. During the landed missions, astronauts collected samples of rocks and lunar dust that scientists still study to learn about the moon.

Detailed explanation-6: -Improving health care. Protecting our planet and our environment. Creating scientific and technical jobs. Improving our day-to-day lives. Enhancing safety on Earth. Making scientific discoveries. Sparking youth’s interest in science. Cooperating with countries around the world. 11-Dec-2020

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