13 Jun

Earth on edge of Goldilock’s zone, not center, could have been like Venus

Interesting:

“If the latest models are accurate, Earth and Venus really might have been twins, had the orbit of one been just a tiny bit different. But rather than two clement Earths, there might have been two infernal Venuses. That’s a doubly humbling thought.”

(Via Is Earth’s orbit scarily close to Venus’s sultry zone? – opinion – 13 June 2013 – New Scientist.)