Quiz · Searching for Life on Mars

Question 1What are the robotic rovers on Mars mainly searching for?

Signs that liquid water once flowed there Gold and other valuable metals in the soil Safe places to build a future space hotel The best route for a racing track

Question 2What can still be seen on Mars from orbit?

Large forests and deep blue oceans Active volcanoes near the north pole Ancient river valleys and empty lake beds The tracks left by the very first rovers

Question 3Why do scientists care so much about finding past water on Mars?

Water could be sold back to Earth Water would make the planet look red Water would cool down the dusty surface Where there was water, simple life might have existed