The author proposes extensions to the Scrum process model to add formal requirements and test case management, with requirements and test case work items that have their own state transition (e.g. âNot Implementedâ, âPartially Implementedâ, âFully Implementedâ).
In order to calculate the time of travel with this speed from Earth to Mars, we need to know the distance. When the Mars and the Earth are at the opposite sides of the Sun, the distance is the largest: approximately: 378 million km. The time needed for an electromagnetic wave to cover this distance is approximately: 21 minute. The closest distance between Mars and Earth is 78 million km, the time in this case is: 4.3 min.
Now that we know the distance between the Earth and Mars, and that the Mars missions need to launch when Marsâ and Earthâs orbit are close, the biggest question is how long it will take. Historically the time lengths have differed when we have launched different probes and rovers to Mars, but scientists have estimated that it will take about 7 months to get to Mars.