Do. 1  Do spend some time understanding the point of what you are about to write. 2  Do make lists. 3  Do use an appropriate tone. 4  Do write several drafts of each paragraph. 5  Do compare your first draft copy with other material from previous issues of the journal or website.
Mars is so far away in fact that it takes radio signals quite a long time to get from the spacecraft back to Earth. During Curiosity EDL, this delay will be 13 minutes, 48 seconds, about mid-way between the minimum delay of around 4 minutes and the maximum of around 24 minutes.
Unmanned probes from Earth can take from 7 months to two years to reach Mars, depending on when they are launched and how fast they can travel. Spacecraft launched from Earth to Mars usually take between 235 to 260 days , depending on the distance between the two planets on the launch date.