Q1: How many Mars missions have been successful?
A1: There have been three successful missions to Mars. One of them is the 2007 Phoenix Mars Lander that returned over 25 gigabits of data from its studies of Mars' north polar region.
Q2: How much data has been returned from Mars missions?
A2: More than 400 terabits of data have been returned from Mars missions. This is more data than all other Mars missions combined.
Q3: How many unsuccessful dedicated Mars missions have there been?
A3: There have been three unsuccessful dedicated Mars missions, aside from the successful ones.
Q4: How many spacecraft are currently operating at Mars?
A4: There are several spacecraft currently operating at Mars. The exact number is unknown.
Q5: How many rovers have successfully landed on Mars?
A5: To date, Mars is the only planet in our solar system where humanity has successfully sent and landed rovers on the surface.
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