Description of the following video:
[Open on IU logo]
NARRATOR: Is there life on Mars?
[IMAGE: Animated ECG signal of moving line of peaks and dips over top of Mars]
NARRATOR: The answer is we don’t know.
[IMAGE: Animated leaves falling from Mars]
[Words appear: “?”]
NARRATOR: But we do know
[IMAGE: Animated heart underneath two colored blocks holding a sun, snowflake, and thermometers showing hot and cold temperatures]
NARRATOR: that life on earth exists in many extreme environments
[IMAGE: Animated mine scene]
NARRATOR: like the hot, poisonous gas filled waters inside abandoned mines
[IMAGE: Animated icebergs moving toward each other with degrees appearing above them moving toward 100 degrees]
NARRATOR: or the frozen ice sheets of Greenland and Antarctica, where temperatures can drop below 100 degrees Fahrenheit.
[IMAGE: Portrait of Lisa Pratt]
NARRATOR: Lisa Pratt
[Words appear: “Indiana University astrobiologist”]
NARRATOR: an Indiana University astrobiologist
[Words appear: “NASA’s Planetary Protection Officer”]
NARRATOR: and NASA’s planetary protection officer
[IMAGE: Portrait of Lisa Pratt with animated rockets moving over it]
NARRATOR: is studying evidence that life may exist beyond earth.
[IMAGE: Animated magnifying glass zooming into planet Earth]
NARRATOR: The only problem is it’s really hard to go to space so scientists explore those other places on our planet.
[IMAGE: Animated signs popping up in different areas of planet Earth]
NARRATOR: that mimic the extreme conditions on other planets.
[IMAGE: Animated bacteria scenes on planet Earth and Mars]
NARRATOR: If diverse bacteria can grow and reproduce in sub-zero temperatures or extreme heat on earth, then maybe, maybe they can live in similar environments and other planets.
[IMAGE: Animated female scientist appears]
NARRATOR: But it isn’t enough to simply visit these extreme environments.
[IMAGE: Animated circles popup over the scientist with symbols for water, soil, rock and gas]
NARRATOR: Scientists also need to collect samples of water, soil, rock and gases in really uncomfortable and dangerous conditions
[IMAGE: A hazard radiation tri-foil sign appears]
NARRATOR: to analyze their composition and chemistry and see if they Harbor life.
[IMAGE: Animated symbols for life signs, rock and soil appear within the radiation tri-foil sign]
NARRATOR: This teaches us about the likely limits of life in other places
[IMAGE: Animated version of the Mars planet appears]
NARRATOR: like the arid soils on Mars
[IMAGE: Animated version of Mars cracks in half and the screen splits to show moons around Jupiter and Saturn]
NARRATOR: or caverns beneath the moons of Jupiter and Saturn.
[IMAGE: Animated full Mars planet reappears]
NARRATOR: But the best way to look for life on Mars is to go to Mars.
[IMAGE: An animated rocket with the year “2020” on the side launches]
NARRATOR: NASA will launch a new Rover to Mars in the summer of 2020
[IMAGE: An animated rover drops from the sky onto the Mars planet]
NARRATOR: and it arrives in 2021.
[IMAGE: An animated rover moves across the surface of Mars picking up rock samples]
NARRATOR: The rover will search for signs of past microbial life and collect samples of Martian rocks and soil.
[IMAGE: Zooms out from the animated Mars planet and into planet Earth]
NARRATOR: After collecting the rocks scientists need to figure out how to get them back to earth.
[IMAGE: Portrait of Lisa Pratt]
NARRATOR: Pratt works closely with a group called NASA’s Returns Sample Science Board
[Words appear: “NASA’s Returned Sample Science Board”]
NARRATOR: who are working to figure out how to pick up the Martian samples
[IMAGE: An animated mechanical arm reaches from the portrait of Lisa Pratt to pick up rock samples from Mars and put them on Earth]
NARRATOR: for return to Earth
[IMAGE: An animated satellite moves across the screen]
NARRATOR: using a probe that launches in 2026.
[IMAGE: An animated microscope drops from above]
NARRATOR: Studying these rocks
[IMAGE: An animated arm places a rock on the microscope and zooms in]
NARRATOR: could shed light on one of human history’s most profound questions.
[Words appear: In the zoomed-in view of the rock the words, “Are we alone?” appear]
NARRATOR: Are we alone?
[Close on IU logo]
[Words appear: Indiana University]