Friday, March 28, 2014

Amazing Facts About Astronomy

1.If you would place a pinhead sized piece of the Sun on the Earth you would(must) die from standing within 145 km from it.
2.Space is not a complete vacuum, there are about 3 atoms per cubic meter of space.
3.Only 5% of the universe is made up of normal matter, 25% is dark matter and 70% is dark energy.
4.Neutron stars are so dense that a teaspoon of them would be equal to the weight of the entire Earth’s population.
5.The Sun is 400 times larger than the Moon but is 400 times further away from Earth making them appear the same size.
6.Helium is the only substance in the universe that cannot be in solid form.It can’t be cold enough.
7.The pistol star is the most luminous star known 10 million times the brightness of the Sun.
8.Saturn’s moon Titan has liquid oceans of natural gas.
9.All the planets are the same age: 4.544 billion years.
10.Earths moon was most likely formed after an early planet named Theia crashed into Earth.
11.About 8000 stars are visible with naked eye from Earth. 4000 in each hemisphere, 2000 at daylight and 2000 at night.
12.All the coal, oil, gas, wood and fuel on Earth would only keep the Sun burning only for few days.
13.A full moon is nine times brighter than a half moon.
14.When the Moon is directly above your head or if you stand at the equator, you weight slightly less.
15.Every year, the Moon is moving away from Earth by 3.85 centimeters.
16.The average galaxy contains  only 40 billion stars.
17.While in space astronomers can get taller, but at the same time their hearts can get smaller.
18.Only half a billionth of the energy released by the Sun reaches Earth.
19.The light emitting from the Sun is actually 31000 years old.
20.There are at least 10^24 stars in the universe.
21.Any free-moving liquid in outer space will form itself into a sphere due to surface tension.
22. When Neil Armstrong stepped on the Moon for the first time, he said these famous words: “That’s one small step for a man, one giant leap for mankind.”
23. The distance to the planets is measured by bouncing radar signals off them and timing how long the signals take to get there and back.
24.  The red color of Mars is due to oxidized  iron in its soil.
25.  The sun weights 2,000 trillion  trillion tones – about 300,000 times as much as the Earth – even though it is made almost entirely of hydrogen and helium, the lightest gases in the Universe.