This intense radiant energy became the Sun. Other whirlpools were formed, colliding and coalescing into larger whirlpools. These whirlpools of dust packed together into larger and larger particles which formed planetesimals, similar in size and shape to the asteroids. As the larger planetesimals grew in size, their gravitational attraction drew more planetesimals towards them, forming the planets. It is believed that if the largest of these planets, Jupiter, had gotten bigger, that we might even have two Suns in our solar system.
Binary stars comprise about half the solar systems in our galaxy.
Eventually, a single Sun and at least nine planets and an asteroid belt with planetoids were formed in our solar system. Astronomers speculate that our solar system must have a tenth planet to explain the orbit of Pluto, but it hasn't been discovered yet, to my knowledge. The formation of the Earth as described above is believed to have occurred about 4.6 billion years ago. At this time, we should note that the rotation of the Earth was considerably faster. Sunrise to sunset took only 2.5 hours, as the Earth rotated every 5 hours.