Scientific issues and innovations are figuring into everyday conversation more than ever before. Recognizing that we could all use some brushing up, Seed offers its Cribsheet.
Since the 1990s, we have found hundreds of worlds— exoplanets—orbiting other stars. This Cribsheet explains three ways astronomers can measure a star’s light over time to infer the presence of exoplanets. It also discusses “habitable zones,” regions of space around a star where life as we know it can exist, and tracks our progress in the search for other Earth-like planets.
Download the Crib Sheet
Illustrator: Southwest— www.southsouthwest.com.au Writer: Lee Billings Consultant: Greg Laughlin, Professor of Astronomy and Astrophysics, University of California, Santa Cruz. Habitable Zone: Derived from an image created by Gabriel Rodriguez Alberich, viewable here. This Habitable Zone image is used and released under the terms of the GFDL. Lowest Exoplanet Masses: Jean Schneider’s Extrasolar Planets Encyclopedia, http://exoplanet.eu/
Originally published February 14, 2008