Mercury & Venus

Let’s start with Mercury!  Mercury is the closest planet to the Sun, so you would it expect it to be the extremely hot.  In fact it the hottest AND coldest planet.  Daytime temperature is 425°C and drops down to -150°C at night.  There is no atmosphere to hold the heat in at night.  But the daytime temperatures are far to harsh your human to survive.  Mercury has no volcanic activity, no rain and no wind.  With all of these conditions there is no possible way anything from Earth could survive of this planet.  Now other life that we do not have on Earth is a possibility, but nothing has been discovered.