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Jerry R. Ehman

The Search for Extraterrestrial life

Subject: 
Environmental Science
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Tags: 
Astronomy
SETI
space
Exoplanetology
Astrobiology
Extrasolar planet
Extraterrestrial life
Space colonization
Search for extraterrestrial intelligence
Wow! signal
Planetary habitability
Jerry R. Ehman
Human Interest
Technology

The Search for Extraterrestrial Life Rafael Almanzar We will talk about the steps being taken currently to find life outside of our solar system. 1 Three Steps Search for Exoplanets SETI Space Rover Official message from white house website. 2 Search for Exoplanets Radial Velocity or Doppler Method Transit Method Transit Timing Variation (TTV) Doppler Method: As a planet orbits a star, the star also moves in its own small orbit around the system's center of mass. Variations in the star's radial velocity?? that is, the speed with which it moves towards or away from Earth?? can be detected from displacements in the star's spectral lines due to the Doppler effect.
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