💖 Please Subscribe: ✍ Scientists say Venus may hold important insights into some of humanity's biggest challenges. As NASA gears up for its Mars 2020 mission, CBS News' Jeff Glor spoke to some who are looking to Earth's mysterious neighbor. Venus is relatively close to Earth, about 100 days away by spaceship. The planet's heat-trapping atmosphere – 97% carbon dioxide – and 900-degree average surface temperature present both a challenge and an opportunity for learning about Earth's formation. Scientists at NASA believe Venus was probably the first planet in our solar system to have the conditions to allow life to form. Sue Smerkar at the Jet Propulsion Laboratory in California said that figuring out how Venus got to its current state could help us understand what is taking place on Earth today. "We can learn about the very early processes that shaped the surface of the Earth if we study what's going on today on Venus. And we have this greenhouse, it's incredibly intense on Venus," she explained. "So it ha ...
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