Origins Life The Big Bang Our Solar System The Sun they did this until the forces were strong that thermonuclear reactions began and this was the origin our star, the sun. happened about bya ago Disk-shaped Cloud the sun subsequently coalesced and condensed fo...

Theory Spontaneous Generation Spontaneous generation scientific method Egypt Europe Major cities the past Butcher shops Jan Baptista van Helmont Francesco Redi John Needham Lazzaro Spallanzani Louis Pasteur...

Darwins theory Evolution Jean Baptiste Lamark Georges Cuvier James Hutton Charles Lyell Thomas Malthus Alfred Wallace...