Hello Friends,
This is my first blog and I am very interested to share my first information about the Galaxy or Astronomy.
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| Andromeda Galaxy |
- When you look at the Andromeda galaxy (which is 2.3 million light years away), the light you are seeing took 2.3 million years to reach you. Thus you are seeing the galaxy as it was 2.3 million years ago.
- Light from the sun takes 8 minutes to reach you, thus you see the sun as it was 8 minutes ago. It might have blown up 4 minutes ago and you wouldn't know about it!
- The Earth is not a sphere! It actually is an oblate spheroid, it is squashed slightly at the poles and bulges out at the equator due to its rotation.
- When Galileo viewed Saturn for the first time through a telescope, he described the planet as having "ears". It was not until 1655 that Christian Huygens suggested the crazy theory that they might be an enormous set of rings around the planet.
- If you could put Saturn in an enormous bathtub, it would float. The planet is less dense than water.
- A teaspoon-full of Neutron star would weigh about 112 million tonnes.
- Jupiter is heavier than all the other planets put together.
- Even on the clearest night, the human eye can only see about 3,000 stars. There are an estimated 100,000,000,000 in our galaxy alone!
- The tallest mountain in the solar system is Olympus Mons, on Mars at a height of about 15 miles, three times the height of Mount Everest. It covers an area about half the size of Spain.
- If the sun were the size of a dot on an ordinary-sized letter 'i', then the nearest star would be 10 miles away.
