Big Bang Source Analysis - Physics bibliographies - in Harvard style

In-text: (Astronomy, 2018)

Your Bibliography: Astronomy, S., 2018. What Is the Big Bang Theory?. [online] Space.com. Available at: <https://www.space.com/25126-big-bang-theory.html> [Accessed 29 June 2018].

In-text: (The Story of Our Universe, 2018)

Your Bibliography: NASA. 2018. The Story of Our Universe. [online] Available at: <https://www.nasa.gov/mission_pages/planck/multimedia/pia16876b.html#.WzX-w9IzaUl> [Accessed 29 June 2018].

In-text: (The Origins of the Universe, 2018)

Your Bibliography: Nationalgeographic.com. 2018. The Origins of the Universe. [online] Available at: <https://www.nationalgeographic.com/science/space/universe/origins-of-the-universe/>.

In-text: (The Big Bang | Science Mission Directorate, 2018)

Your Bibliography: Science.nasa.gov. 2018. The Big Bang | Science Mission Directorate. [online] Available at: <https://science.nasa.gov/astrophysics/focus-areas/what-powered-the-big-bang>.

In-text: (Our Expanding Universe: Age, History & Other Facts, 2018)

Your Bibliography: Space.com. 2018. Our Expanding Universe: Age, History & Other Facts. [online] Available at: <https://www.space.com/52-the-expanding-universe-from-the-big-bang-to-today.html> [Accessed 29 June 2018].

In-text: (Space.com - About Us and Our People, 2018)

Your Bibliography: Space.com. 2018. Space.com - About Us and Our People. [online] Available at: <https://www.space.com/about> [Accessed 29 June 2018].

In-text: (Five facts about the Big Bang, 2018)

Your Bibliography: symmetry magazine. 2018. Five facts about the Big Bang. [online] Available at: <https://www.symmetrymagazine.org/article/five-facts-about-the-big-bang>.

In-text: (History of the Earth, 2018)

Your Bibliography: Wikipedia. 2018. History of the Earth. [online] Available at: <https://simple.wikipedia.org/wiki/History_of_the_Earth>.