- The universe is observed to be 8 billion years old has been expanding since its formation in the “Big Bang”.
- The theory that refers to an explosion about 10 to 15 billion years ago, which astronomers believe to be the origin of the Universe is called ‘Big Bang Theory’.
- One day on Venus is longer than one year on the earth.
- ‘Black holes’ are stellar objects which have intense gravitational field.
- Cooler areas which move about on the sun’s surface and show up as dark spots are known as “Sun-spots”.
- The sun is all the colors mixed together, this appears white to our eyes.
- Our sun looks white from space and has a surface temperature of 10,000 degrees Fahrenheit (6000 Celsius).
- The temperature of the sun at the center is around 15,000,000 degree Celsius.
- The sun does not have any moon and rings. It has planets and their moons, along with asteroids, comets and other objects.
- By mass the sun is composed of 6% of Hydrogen and 27.4% of Helium and 2.0% of some other elements.