Explanation:

According to Nova hypothesis, Solar planets were  formed  because  of  explosion of Super Nova. A star becomes Super Nova in that stage when it    has lack of hydrogen elements. A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova.The first type of supernova happens in binary star systems. Binary stars are two   stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova.The second type of supernova occurs at the end of a single star’s lifetime. As the   star runs out of nuclear fuel, some of its mass flows into its core. Eventually,   the core is so heavy that it cannot withstand its own gravitational force. The  core collapses, which results in the giant explosion of a supernova. The sun is   a single star, but it does not have enough mass to become a supernova.