{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Earth:Its a planet 1 - In the beginning there was nothing...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
In the beginning there was nothing… and then, there was something… this is not entirely correct… Conservation of Mass/Energy E=MC2 The speed of light ( C ) is 186,000 miles/s 13.7 billion years ago the universe formed and has been expanding ever since. The expansion is from a hypothetical center of the (big bang) universe and spreads outwardly for about 40-50 billion light years. One light year is about 10 trillion kilometers or 6 trillion miles. Eventually the universe will begin to contract and the process will go into reverse. The contraction likely will be caused by the formation of numerous black holes that are made of some of the most dense material known to exist. Black holes will pull all material in the universe into one mass and condense that mass into something that is infinitesimally small. This infinitesimally small mass will eventually reach a critical mass and then a big bang will happen, again. And the process will repeat itself, theoretically multiple times.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern