roverIntroText top-level property

Implementation

String roverIntroText =
    'Perseverance is exploring Jezero Crater, a location on Mars that shows promising signs of a place that was likely friendly to life in the distant past. The rover’s goal is to study the site in detail for its past conditions and seek the very signs of past life. It is carrying out its mission to identify and collect the most compelling rock cores and other samples of Mars material, which a future mission could retrieve and bring to Earth for more detailed study.  Perseverance also tests technologies needed for the future human and robotic exploration of Mars.';