To meet its power needs, the spacecraft is equipped with solar arrays covering an area of over 90 square meters (960 square feet). The Europa Clipper mission will become the second solar-powered spacecraft to orbit Jupiter when it arrives to study the giant planet’s ice-covered moon Europa. Combined, they provide Juno with 50 square meters (535 square feet) of active solar cells. To achieve the feat, engineers designed Juno with three massive solar panels, each nearly 9 meters (30 feet) long. An astronomical unit is equal to the average distance between Earth and the Sun – about 150 million kilometers (93 million miles). Juno, and its eight science instruments designed to study the interior of Jupiter, passed the mark previously held by the European Space Agency’s Rosetta mission when it reached a distance of 5.3 astronomical units from the Sun. NASA’s Juno mission, the first solar-powered mission to Jupiter, is the farthest solar-powered spacecraft ever. To generate enough power at that distance, the Psyche spacecraft's solar panels are designed to have an area of 75 square meters (800 square feet). That’s 2.5 to 3.3 times the distance between Earth and the Sun. Located in the asteroid belt between Mars and Jupiter, the 16 Psyche asteroid orbits the Sun at a distance ranging from 378 million to 497 million kilometers (235 million to 309 million miles). One such solar-powered mission is NASA’s Psyche spacecraft, which will visit an asteroid known as 16 Psyche. Each of Juno's three solar arrays is 9 feet (2.7 meters wide), by 29 feet (8.9 meters long). Technicians stow for launch a solar array on NASA's Juno spacecraft. Advances in solar panel efficiency along with improvements in the way spacecraft and their instruments use power have recently made solar power a viable option for spacecraft heading as far as Jupiter – though going beyond will require further technological advances. Previous missions that visited Jupiter, like Galileo, Voyager 1 and Voyager 2, couldn’t use solar power and instead used radioisotope thermoelectric generators (RTGs) to supply power. Dimmer sunlight limits the amount of power that can be generated using solar cells. That’s because sunlight becomes less intense the farther a spacecraft travels from the Sun, just as a bright source of light dims as you move away from it. The farther a spacecraft is traveling from the Sun, the larger its solar arrays need to be to meet its specific power needs. If using a non-LED flashlight with the reflector housing removed, take safety measures to avoid accidental burns from a hot bulb.ĭifferent spacecraft have different power needs so some solar-powered spacecraft will have different size solar panels than others. LED flashlights or light from a mobile device is recommended.Keep walking paths clear and minimize unnecessary student movement in the darkened room. This activity takes place in a darkened room, which can pose slip, trip and fall hazards.Download the Student Worksheet from the materials list and make copies of both problems in the set or individual problems to hand out to students.Light source, possibly an LED flashlight or LED light from a mobile device Mobile device with light sensor and lux measuring app Ruler (capable of measuring out 1 foot increments up to 5 feet) Teacher Answer Key - Download Docx | View on Google Drive Student Worksheet - Download Docx | View on Google Drive › Explore more on the Teachable Moments Blog OverviewStudents will explore the practical applications of exponents and division to investigate what it takes for NASA spacecraft to travel deep into the solar system using only solar power. See " Cruising to Jupiter: A Powerful Math Lesson." also an option to calculate the total cost of an area if entering the price per square kilometer.This activity is related to a Teachable Moment from Jan. kilometersĮnter the length and width in terms of kilometers, centimeters, millimetres, feet, inches and yards and press Calculate to find out the area measured in square km. Measure the length in kilometers and breadth in kilometers then multiply the length and breadth but if the length and breadth are not in km then first convert in kilometers and then multiply. Total cost Area = Area in Square kilometer * Price per square kilometersĬheck also – population density calculator How do you calculate square kilometers? If you calculate the total cost area then used this formula:. Square kilometer = length(kilometer) x width(kilometer) L = Length of a rectangle in kilometers.The formula for calculating the square kilometers is
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