Duration: 4 Saturdays - 4 Lectures - Total 8 hours
Dates : 10.12.2022, 17.12.2022, 24.12.2022, 31.12.2022
Time : 07.00 pm - 09.00 pm
Registration deadline - 8th of December 2022
Introduction to Astrobiology& Life
A basic introduction to astrobiology -definition, Fundamental questions in astrobiology, The history of Astrobiology,Early/pioneer Scientists, Definition of life, Characteristics of life andrequirements, Development of concepts about life, The building blocks of life,Amino acids, proteins, and chirality, Sugars, Lipids, Nucleic Acids,Alternative chemistries for life, Carbon as
the core element, Alternatives for Carbon,Importance of Water, Solvents other than water, Cells: the basic unit of life,Types of Cells, Prokaryotic cell structure, Eukaryotic cell structure, Otherlife/life-like forms (virus, prions, etc.)
The Origin of Elements toform Life, Early earth & Chemical evolution of life
The origin of elements and formation of thesolar system, The formation of Early Earth, Early Oceans,Crust, Atmosphere and other conditions, Rock records (Geological records),Asteroid/comet impacts, A brief Geological history of Earth, Origin of life on earth: Concepts, ChemicalEvolution- Primordial soup concept, Urey-Miller experiment
Early Life on Earth, The protocells, Tree oflife and early evolution, Evidence of early life on Earth. Rise ofphotosynthesis and the Great Oxidation Event, Snowball Earth, The rise ofmulticellular life and Mass Extinctions, Geological time scales and life, Fivemajor Mass Extinctions.
Other methods todescribe life on Earth
Spontaneous Generation, Panspermia, The role ofcomets, Meteorites with the source of material, Nucleotides, RNA/DNA, Membranelipids, RNA world. Extremophiles and Cave microbiology
Habitability - Conceptsof Habitability, Potential for life on Solar system, Mars. Venus?, Moon?,Titan, Europa, Enceladus, Triton, exoplanets, Meteorites, and other conditionsin the universe, stability of the star, and other factors.
· Lectures are conducted by experienced professionals of the Institute of Astronomy Sri Lanka, trained under Homi Bhabha center for science education India