Birth of the Sun
(4.6 Billion years ago)
Scientists think that the Sun started from a very large cloud of dust and small bits of ice about 4.567 billion years ago.
At the center of that huge cloud, gravity caused the material to build up into a ball. Once this got big enough, the huge pressure inside started a fusion reaction. The energy this released caused that ball to heat and shine.
The energy radiated from the Sun pushed away the rest of the cloud from itself, and the planets formed from the rest of this cloud.The Sun is a star like many others in our Milky Way galaxy. It has existed for a little over 4.5 billion years, and is going to continue for at least as long. The Sun is about a hundred times as wide as the Earth. It has a mass of 1.9891x1030 kg, which is 333,000 times the mass of the Earth. The Earth can also fit inside the Sun 1.3 million times.
Visit our website for more amazing Content:
Comments
Post a Comment