We have yet to find evidence of life on Mars.. However, Life may have existed in the past. Life may exist now, perhaps deep underground.
The geology of Mars should sound familiar: Volcanism, plate tectonics, wind, ice and water-related erosion and geology, and evidence of past impacts.
Pictures from the surface show a desert like landscape, drifts and dunes of sand, scattered with larger rocks. Click HERE for a high resolution image of the Mars Surface taken with the Mars Pathfinder..
- Temperature?A warm summer day
in the South, maybe 65 F! But the average temperatures is -80 F.
Atmosphere? Very dry. Primarily CO2. 1/100th the density of Earth's. *Little* Ozone. Lots of UV light gets through!
Mar's Day and Year? About the same as Earth: 24.6 hours. Being 1.5 times further from the Sun (and moving on a slower orbit), a Mar's year is 686 (Earth) days = 1.9 (Earth) years.
Seasons? YES! Mars is tilted 25o, similar to Earth's 23.5o. Only the orbit is not as Circular: Mars is closest to Sun during Southern Summer, making Southern Winter very cold. Northern climate more moderate.