Previous 5v Analyzing Structural Elements of an Expository Text to Develop an Outline: Mastery Test O Submit T What Is an Atomic Clock? by Arielle Samuelson (excerpt) Select the correct answer. In 2019, NASA introduced the Deep Space Atomic Clock. In this excerpt, writer Arielle Samuelson, who has written extensively Why does the author use a question-and-answer format to develop the main points of the passage? about NASA's Jet Propulsion Laboratory, explains why this new "time machine" is important O A. to better show how different types of clocks compare and contrast (1) Developed by NASA's Jet Propulsion Laboratory in Pasadena, California, the Deep Space Atomic Clock is a serious upgrade to O B. to present a sequential order of events in an understandable way the satellite-based atomic clocks that, for example, enable the GPS on your phone O C. to guide readers' understanding of a complex topic (2) Ultimately, this new technology could make spacecraft navigation to distant locations like Mars more autonomous. But O D. to more easily reveal the timeline of events what is an atomic clock? How are they used in space navigation, and what makes the Deep Space Atomic Clock different? Read on to get all the answers. Reset Next Why do we use clocks to navigate in space? (3) To determine a spacecraft's distance from Earth, navigators send a signal to the spacecraft, which then returns it to Earth. The time the signal requires to make that two-way journey reveals the spacecraft's distance from Earth because the signal travels at a known speed (the speed of light). (4) While it may sound complicated, most of us use this concept every day. The grocery store might be a 30-minute walk from vour house If you know vou can walk about a mile in 20 minutes @2024 Edmentum. All rights reserved