Astronomical Basics: Scientific Notation and Physical Units

The Drake Equation

Other sources:

• The thought processes underlying Fermi's Piano Tuner problem and similar estimates are described here.
• The Drake equation, as elucidated by the SETI Institute.

What is Science?

• The Sun
• The Greenhouse Effect
• The Sun and Climate
• Why Does The Sun Shine
  Song Lyrics
  • The Sun Song, by The Chromatics
  • Why Does The Sun Shine, as interpreted by They Might be Giants.

• Solar Evolution and the Habitable Zone
• Galaxies and the Galactic Habitable Zone

• Planets
• Most of the Solar System

• The Inner Solar System
• Exoplanets

• Life and f_l
• The Biochemistry of Life
• Evolution

• Life on Earth. I.
• Life on Earth. II.

• Mars
• Europa and the moons of Jupiter

• Titan and the moons of Saturn

• Rare Earth?
• Intelligence

• SETI
• The Final Answer

• Space Travel
• Where Are They?