Which planets do space scientists love most?

As BepiColombo heads to Mercury — a long-neglected planet — Nature looks at which planets attract scientific missions, and why. Last week, the BepiColombo spacecraft successfully began its seven-year journey to Mercury — only the third-ever mission sent to the planet. The day before, scientists said that NASA’s next Mars rover — intended to be first to gather and return rock samples to Earth — should visit as many places on the red planet as possible.
Read more: https://www.nature.com/articles/d41586-018-07119-0?source=Snapzu