Universe facts -- Posted by inturi on Friday, May 22 2009
Galaxies and stars(including us) are moving 600 KM/S
Required speed to escape earth gravity = 11 KM/S

Distance from one end to other end of Earth = 66.8 light milliseconds
Distance from Earth to man made satellite = 1.334 light milliseconds
Distance between Earth and Moon = 1.2 to 1.3 light seconds
Distance between Earth and Sun = 8.32 light minutes (499 light seconds)

Speed of light = 300,000 km/s

The nearest known star to our solar system = Proxima Centauri
Distance between Earth and Proxima Centauri star= 4.22 light years

Distance between Earth and center of our Milky way galaxy = 26K light years

Distance from one end to other end of Milky way galaxy = 100K light years

Distance between Earth and Andromeda Galaxy = 2.5M light years
Distance between Earth and Triangulum Galaxy = 3.14M light years

Moon is moving away from Earth 1.5 inch every year.

How water came to Earth ? One popular theory is that when comet hit earth, ice in the comet is the initial source for water on the Earth

How was the moon born ? When a rocky spear of size Mars hit Earth, massive collision created Moon.

How did life formed on Earth ?
Carbon(C), Hydrogen(H), Nitrogen(N) and Oxygen(0).
These four chemicals are basic building blocks of life. These four are pretty common in the Universe.

Age of Earth = 4.5 billion years
Life on Earth begun 3.5 billion years ago

Dianosaurus ruled earth for 150 million years till 65 million ago when an asteroid(6 miles across) hit the earth.

Sefla frauds, Octopus, color animals have remarkable brain !! They can change their skin color to match surrounding environment colo pattern.

Radio waves travel at light speed.

Universe born 13.7 billion years ago.

Sun is formed with 70% hydrogen and 28% helium

Carbon is the root cause of life on Earth.