Supernova. Stars below nine solar masses become white dwarfs, though stars more than 1.4 solar masses (Chandrasekhar limit) should nova during their life time.
http://en.wikipedia.org/wiki/Supernova
http://en.wikipedia.org/wiki/Chandrasekhar_limit
It is a large star
If blackholes reach the earth the earth will destroy. Blackhole are to large it can eat star easily.
A planet cannot explode on it's own. A star would experience very little changes if a planet did explode, even one as large as Jupiter.
Lots of things do NOT happen. Better read an article on star formation and find out what DOES happen.
Software Star happened in 1985.
Star Parodier happened in 1992.
Star Wolves happened in 2004.
Star Sonata happened in 2004.
Star Wraith happened in 1999.
Star Warped happened in 1997.
Star Fire happened in 1979.
Star X happened in 2002.