Fill in the Blanks Mars, Here We Come!Online version Scanning Activity by Maria Jose Murillo P. 1 temperature life meteor day Venus Mars dust distance Venus a ) 1 . 75 billion years how much longer Earth can support b ) minus 60°C the average at night on Mars c ) 20°C the average temperature in the on Mars d ) 400°C the temperature on the planet e ) 24 hours , 39 minutes and 35 seconds the length of a day on f ) 117 days the length of a day on g ) 225 million kilometers the average between the Earth and Mars h ) 250 , 000 kilometers an hour how fast a can travel i ) 40 kilometers how high can go into the atmosphere of Mar s