The Big Bang By AmeliaC Jan 1, 1901 13.7 billion years ago, the Big Bang forms and explodes. Jan 1, 1901 Time, Space, Gravity, Electromagnitisim, Weak Nuclear Force and Strong Nuclear Force all appear. Jan 1, 1901 Stars light up Jan 1, 1901 The first redshifting occurs. Jan 1, 1901 Cosmic background radiation forms. Jan 1, 1901 Energy congeals, in order to form dark matter. Jan 1, 1901 Hydrogen and Helium molecules, as well as a few Lithium particles, form. Jan 1, 1901 Atoms are created.