facts about the universe and galaxies

Our universe is so vast and it is very difficult to know about its complexities. The diameter of universe around 91 billion light years and the age of universe is measured to be 13.799±0.021 billion years.  After thousands of year, we still don’t know about it, how it’s made, formation of it like according to the scientist universe is made by atoms and energy but in recent it is found that there 5% of it made by atoms other parts is made by dark matter.

From many years our scientist tried to find out planet like earth but they did not get success, but in this process they found other interesting facts about universe:

1. Coldest star: we can touch

In recent astronomer have found earth like planet during deep observation of space, is not a planet but a star, you can also touch it. It’s temperature around 27 deg Celsius that we are found on earth in summer days and it is coldest star in universe. Scientist called it WD 0806-661.

It is located about 62.6 +2.0/-1.9 light-years away from earth and it formed by dust or cloud that is similar to other stars in universe. According to the scientist it is very small and you can only found by telescope in the south central part.

It temperature is too low due to it made by dust or cloud and that is the reason it have less mass so it does not produce heat that much fast as compare to other star.

2. Smell of universe:

Many people assume that space is devoid of any smell. But those astronauts who have gone in space they consistently claimed that space have extraordinary peculiar door it’s like smell plastic-y.

When they went into the space station and removing their helmets, they get strong, distinctive whiff of the final pointer. Some scientist feels it smell like burned metal and some say it’s like smoke came from welding.  But environment does not present in universe so how we can feel smell in universe.

Scientist tried to solve the mystery, that how and from where this smell is come in universe but they still did not get success.

3. Distance from earth to universe:

We are thousands of light years away from universe so when we look to stars in the night of sky and gaze at star then we are actually experiencing how they looked in the past like we are 25 light year away from the bright star Vega so that light we see left the star 25 year ago.

While we are 1000 of light year away from sun that means we take that light which made 1000 of year ago.

4. Asteroids might hit earth in 2029:

According to the astronomer, our earth would end in 2029 due to colliding of large asteroids called 99942 with the earth that wiping life out in 2029.

According to the recent data suggest that it will miss earth by around 35,000 kilometer. But according to the analysis of Apophis’ orbit suggests it might swing back and so that it produce avalanches.

Scientist thought that asteroids as large as monolithic pieces of rock so how the little gravity cause it to go to pieces?

In 2029 astronomer might have last chance to get a close look at Apophis for a long time. On next time in 2036, 99942 Apophis is expected to get no closer than 36 million miles away.

5. Huge cistern of water discovered from 300 million away:

Yes, it’s right, really water is everywhere. A team of astronomer discovered a huge cistern of water in the universe that looking from distance of 30 billion light years away from the earth. The water is found in quasar that one of the brightest and violent objects in the cosmos.

The researcher had found the mass of water vapor that is around 150 trillion time of combined water all oceans in world and 100,000 times more massive than sun.         

Quasar is far away from earth, so it light takes 12 billion years to reach earth. The environment around the quasar is unique and quite interesting, it producing the huge mass of water.