Unformatted text preview: of a star), astometry/Doppler spectroscopy (detecting “wobbling effect” when planet moves around the star), and direct imaging (directly seeing it, using telescopes). • Habitable zone – area in solar system that would be suitable for life. • Water is the biggest criteria for life. It is polar covalent (unequal sharing of electrons). Water has hydrogen bonding, which takes a lot of energy to break. Water is highly cohesive, has a high heat capacity, and a high heat of vaporization (stays liquid to relatively high temperatures). Hydration shells caused by water minimize electric charge, acting as a buffer....
View Full Document
- Spring '09
- Planet, Proxima Centauri, Milky Way galaxy, extra terrestrial intelligence, minimize electric charge