Nope. You picked Mercury, the eighth largest planet in diameter in the solar
system. Mercury's temperature ranges from 90 K to 700 K. The planet itself is
the second densest major body in the solar system. (The Earth is the most
dense.) Mercury's iron core covered by a thin silicate mantle and crust. Only
one spacecraft, Mariner 10, has ever visited (in 1973 and 1974).