UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It gave spacecraft a timed trajectory.
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It ensured spacecraft would return home safely.
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It was helpful in planning spacecraft trajectories.
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It ensured spacecraft would avoid being pulled into the Sun.
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Detailed explanation-1: -When human spaceflight began, NASA used the gravity assist concept so that spacecraft could conserve fuel. Which statement explains why the gravity assist concept was useful for spacecraft to successfully travel and return to Earth? It gave spacecraft a timed trajectory.
Detailed explanation-2: -Project Mercury. Project Mercury, the first U.S. program to put humans in space, made 25 flights, six of which carried astronauts between 1961 and 1963.
Detailed explanation-3: -Gravity is an important tool in space flight, especially in the form of planning flight paths for missions. Using a concept called gravity assist, the trajectory and speed of a spacecraft can be changed by encountering large bodies, such as planets, in space.
Detailed explanation-4: -HRSI tiles protect the bottom of the orbiter and a few other vulnerable spots from temperatures between 1, 200 and 2, 300 degrees Fahrenheit. They have a black ceramic coating that helps deflect the enormous heat caused by reentry7.
Detailed explanation-5: -The BepiColombo mission was approved in November 2009, and successfully launched on October 20, 2018. It is scheduled to enter orbit around Mercury in December 2025. Its primary mission will last until May 2027, with a possible extension to May 2028.
Detailed explanation-6: -What does NASA do for you? NASA’s unique mission provides benefits in big and small ways. Dollars spent for space exploration create jobs, jumpstart businesses, and grow the economy. Our innovations improve daily life, advance medical research, support disaster response, and more.
Detailed explanation-7: -Exercise is an important part of the daily routine for astronauts aboard the International Space Station to prevent bone and muscle loss, and to maintain cardiovascular health. On average, astronauts exercise two hours per day.