https://padlet.com/jschwartz2023/xipelbyp9r0a By Jason Schwartz en-us 2016-12-09 21:55:30 UTC 2023-04-30 15:12:12 UTC hello@padlet.com jschwartz2023 https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142920404 The big bang theory is an effort to explain what happened during and after that moment. According to the standard theory, our universe sprang into existence around 13.7 billion years ago.]]> 2016-12-09 22:05:05 UTC https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142920404 jschwartz2023 https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142921393 The sun forms within a cloud of gas in a spiral arm of the Milky Way Galaxy. A vast disk of gas and debris that swirls around this new star gives birth to planets, moons, and asteroids . Earth is the third planet out.]]> 2016-12-09 22:18:03 UTC https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142921393 jschwartz2023 https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142921881 The Earth has cooled and an atmosphere develops. Microscopic living cells, neither plants nor animals, begin to evolve and flourish in earth's many volcanic environments.]]> 2016-12-09 22:23:41 UTC https://padlet.com/jschwartz2023/xipelbyp9r0a/wish/142921881