Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.
Pretty sure it was Galileo
Wolf cubs are born deaf and blind, they stay with their mother for 10 months this is when they reach full maturity.