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The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
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Habitability on Early Mars and the Search for Biosignatures with the ExoMars Rover.

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The ExoMars mission will search for signs of extinct life on Mars using a rover with a drill to access subsurface samples. This mission aims to find chemical biosignatures in ancient Martian environments.

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Area of Science:

  • Astrobiology and Planetary Science
  • Search for extraterrestrial life
  • Mars exploration

Background:

  • Mars possesses ancient terrains with high potential for past habitability.
  • Preservation of physical, chemical, and organic biosignatures is possible in these environments.
  • Previous missions have laid groundwork for in-situ life detection.

Purpose of the Study:

  • To conduct a holistic search for traces of extinct life on Mars.
  • To investigate ancient Martian locations for habitability and biosignatures.
  • To gather corroborating geological context information for life detection.

Main Methods:

  • Deployment of the ExoMars mission, including a lander and a rover.
  • Utilizing rover's drill for subsurface sample collection up to 2 meters depth.
  • Employing Pasteur payload instruments for detailed chemical and physical analysis.

Main Results:

  • The mission targets locations with strong potential for preserving biosignatures.
  • Subsurface sampling capability enhances access to protected chemical biosignatures.
  • Integrated approach combining atmospheric, geophysical, and biological investigations.

Conclusions:

  • The ExoMars mission represents a significant advancement in the search for life beyond Earth.
  • Subsurface access is critical for detecting well-preserved biosignatures.
  • The mission's comprehensive strategy maximizes the chances of discovering evidence of past Martian life.