The Universe is, as we say, a collection of planets, stars, galaxies, and all other forms of matter and energy. As per the calculations of astrophysicist, the diameter of the observable universe is about 93 billion light years, but the entire dimensions of the universe is still unknown. Here is a list of some unknown facts which will blow your mind.
A year on Venus is shorter than its day: The slowest rotating planet in our Solar System is Venus. It is so slow, that it takes 243 days to fully rotate on its own axis and 224 days to complete its orbit. This means that on Venus, days last longer than years.
A day on Mercury is longer than its year: Mercury revolves around the sun faster than other planets, which makes its year equivalent to 88 Earth days. While a day on Mercury lasts 176 Earth days.
You cannot cry in space: You cannot cry in space because without gravity, tears don’t flow downwards out of the eye and do not wash away irritants from our eyes. Instead, they accumulate into a little ball of liquid that keeps hanging in the eye.
The weight of a spoonful of a neutron star is a billion ton: It is calculated that if you could collect a spoonful of matter from the center of a neutron star, its weight would be about a billion tons.
Looking into the night sky enables you to you look back in time: The stars we see in the night sky are very far away from us. The star light we see has taken a long time to travel across space and has then reached our eyes. This means that whenever we look out into the night and look at stars, we are actually watching how they looked in the past.
The Hubble telescope can help us look back billions of years into the past: The Hubble Telescope enables us to look towards very distant objects in the universe. It is created using images from the telescope from 2003 and 2004. The incredible picture displayed is a tiny patch of the sky in detail which contains 10,000 objects and acts as a portal back in time.
You can watch the Big Bang on your television: Cosmic background radiation is the afterglow and heat of the Big Bang which started our universe 13.7 billion years ago. This cosmic echo exists throughout the universe, of which we can also catch a glimpse by using an old-fashioned television set. When a television is not tuned to a station we can see some black and white fuzz and crackling noise and around 1% of this interference is made up cosmic background radiation.
A massive water body is just floating around in space: There is a gigantic water reservoir floating in space which has 140 trillion times all the water in the world’s ocean.