what are the probes that were sent to mercury and when were they sent and what did they find first 10 pts
and why hasnt man been able to go to this planet
MERCURY NOT MARS
b. what is the density ?
d. what is it made of?
e. what is the temperature range? why so great? ( in Celsius)
f. what is one day on this planet in earth days?
g.what is a year on this planet in earth days?
i.why doesn't it have an atmosphere of it's own?
j. why are there so many crater? two...