Uploaded April 2013 | Updated September 2026, 3 hours ago
April 11, 2007
Dr. David Grinspoon (Denver Museum of Nature and Science)
Take an entertaining and enlightening journey with an astronomer and popular author through the history of our solar system, discovering runaway greenhouses and snowball planets. Compare the evolution of Venus, Earth, and Mars over the years. And learn how studying the evolution of other planets can help us understand and predict climate change on Earth.
April 11, 2007
Dr. David Grinspoon (Denver Museum of Nature and Science)
Take an entertaining and enlightening journey with an astronomer and popular author through the history of our solar system, discovering runaway greenhouses and snowball planets. Compare the evolution of Venus, Earth, and Mars over the years. And learn how studying the evolution of other planets can help us understand and predict climate change on Earth.










