How did the universe begin? by Helen Nelson https://padlet.com/nelsonh23/ax95nfys88j4u00h Remember, always be respectful when posting. Use what you know, if you're not sure, be honest. Our class is about exploring science together. en-us 2021-09-20 12:07:05 UTC 2026-02-03 13:47:31 UTC hello@padlet.com thousands of years ago the universe was organized in a galaxy by different shapes and sizes https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753927400 2021-09-20 13:14:35 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753927400 there are various theories of the universe religious theories and scientific theories https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753928548 2021-09-20 13:14:56 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753928548 An ancient Greek scientist studied the moon. He wanted to know how far it was from Earth. He waited until a lunar eclipse. This is when Earth passes between the sun and the moon. He looked at the shadow of the Earth on the moon. He used the shadow to measure the distance to the moon. Edmund Halley was a British scientist. He lived in the 1700s. 3008105 https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753936218 2021-09-20 13:17:08 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753936218 According to the theory, it was due to an explosion and that the universe was born about 13.7 billion years ago. Since it is difficult to explain that something good can come out of an explosion. https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753937869 2021-09-20 13:17:37 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753937869 The universe started from the exploitation 13.7 billion years ago then since that time many theories began to emerge the universe is finite and simpler then we thing https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753954022 2021-09-20 13:21:58 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753954022 About 13.7 billion years ago this tiny irregularity violently exploded. And it is from this explosion, this bang, that all matter, energy, space, and time were created. 3008105 https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753966491 2021-09-20 13:25:17 UTC https://padlet.com/nelsonh23/ax95nfys88j4u00h/wish/1753966491