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A crowded universe

For many years, astronomers thought it to be a good possibility that planets other than those in our own solar system existed around other stars. The problem was that they needed proof to confirm the theory and exoplanet ponderings. It took the decades-long technological evolution of our instruments, telescopes, computers and eventually spacecraft for astronomers to get into the realm of exoplanets.

Monday - 01/23/2012, 09:18am EST

Tags: Space Place, Greg Redfern, Earth, galaxy,