Background
via science.nasa.gov
Short excerpt below. Read at the original source.
What Is Exoplanet Watch? Background Information An introduction to exoplanets and how astronomers study them. Why join Exoplanet Watch? Where are we in space? What are exoplanets? What is the transit method? What are light curves? Are we alone? Learn more and get involved Overview | Stay in Touch | Community | Glossary | Background […]