KIDS TRIVIA

Detailed explanation-1: -The best source of energy for spacecraft is sunlight. Engineers have developed technologies to convert solar energy to electrical power efficiently. Solar arrays that convert energy to electricity on the International Space Station are made of thousands of solar cells, made from purified chunks of the element silicon.

Detailed explanation-2: -NASA then uses a two-pronged approach to fuel the launch. The rocket’s main engines use a combination of liquid hydrogen and liquid oxygen.

Detailed explanation-3: -Spectrolab Inc., a Boeing Company, is the world’s largest manufacturer of spacecraft solar cells.

Detailed explanation-4: -At its current altitude, the space station uses about 19, 000 pounds of propellant a year to maintain a consistent orbit.