Do Aliens Exist? Biosignatures, Part 1

Do aliens really exist? What does our current science have to say? In this set of videos we will be looking at all of the current and closest scientific hits that we have on record in our searches for extraterrestrials. In this first video we will be discussing the biosignatures that have so far been found within our inner solar system. How close have we come to finding ET?
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******* CONTENTS **********
0:00 Introduction
2:04 Astrobiology vs SETI vs Biosignatures vs Technosignatures
3:27 Venus: Phosphine
5:30 Mars: Viking Labeled Release experiment
7:06 Mars: Martian Meteorites
9:33 Mars: Methane
11:43 Frustrating Results and Conclusions
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Links to my 3 books on physics:
Volume 1:
"Everyone's Field Guide to Physics: Volume I: The Familiar World": www.amazon.com/Everyones-Fiel...
Volume 2:
"Everyone's Field Guide to Physics: Volume II: The Ethereal Trinity": www.amazon.com/Everyones-Fiel...
Volume 3:
"Everyone's Field Guide to Physics: Volume III: The Unfamiliar World": www.amazon.com/Everyones-Fiel...
********* CREDITS **************
BG Images: Stock photos by Vecteezy
Venus:
www.nature.com/articles/s4155...
Mars:
www.science.org/content/artic...,
www.jpl.nasa.gov/images/pia17..., www.jpl.nasa.gov/images/pia17..., www.nasa.gov/centers/johnson/h...,
www.pnas.org/doi/10.1073/pnas...