Mars life: through the lens of Curiosity
In-Class Activity 2_Origin of Life
Julia Kahmann-Robinson PhD and Marjorie Chan PhD, University of Utah Department of Geology & Geophysics
Students will become familiar with the mission of Curiosity as it regards to finding life on other planets.
- Internet access in the classroom
- Students need to be somewhat familiar with the mineralogy of Mars (olivine, phyllosilicates, sulfates etc.) to be successful in this activity.
Mars Curiosity Habitability Mission video: http://www.youtube.com/watch?v=oHLbXTOaw7w&feature=relmfu
Have students view the following video from NASA regarding the mission of MSL Curiosity:
As students watch the video have them be ready to answer and discuss the following questions:
- What type of "life" are scientists looking for?
- Can instruments on the MSL Rover Curiosity detect life?
- What is all life associated with?
- What element is necessary for life?
- Why would the layering of rocks at Gale Crater be of interest? What might that layering imply?
Students should define habitability , extinct life, and extant life. They should understand that the "life" on Mars may be very small and primitive if scientists are lucky enough to find and detect it.
Here is a short recommended reading on habitability of Mars: http://www.space.com/19928-mars-habitable-life-possible.html
Extremophiles at Gale Crater
- Review or introduce the Extremophile classification for students (see Module 19 Image File (PowerPoint 2007 (.pptx) 3.9MB Oct23 12) or Module 19 In-Class Activity 1)
- When students consider the environment of Gale Crater what classification of extremophiles might they find there and why?
Ask students to study the annotated layering of Gale Crater and present the mineral chemical formulas.
- Why are these minerals important to Mars exploration? Could some of them indicate life? Why or why not?
- Why might the mineralogy be changing?