Unknown Facts About Space

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Space is fascinating, for thousands of years, humans have been trying to study and learn more about it, and though now we know a great deal about Space, most of what we know is minuscule compared to the sheer vastness of it. Some say that Space is ever-expanding and is always growing, while others believe that we are not alone and some form of extraterritorial life exists far away from our planet. Where ever your belief may lie, one thing is for certain, that there’s a lot more that we haven’t figured out about Space. Which is why we have scoured through the universe of the internet and made a list of some interesting and fascinating facts you might have not known about Space.

Unknown Facts About Space

  • Space is a hard vacuum, meaning it is a void containing very little matter.
  • As there is no atmosphere in space, it means that sound has no medium or way to travel to be heard. Astronauts use radios to stay in communication while in space, since radio waves can still be sent and received.
  • The hottest planet in the solar system is Venus with an average surface temperature of around 450° C. Despite being the hottest planet, Venus is not the closest planet to the Sun – Mercury is closer but because Mercury has no atmosphere to regulate temperature it has a very large temperature fluctuation.
  • The temperature in the void of space is about −270.45 °C.2 Unknown Facts About Space
  • The universe is observed to be 13.8 billion years old and has been expanding since its formation in the Big Bang.
  • In the observable universe there are an estimated 2 trillion (2,000,000,000,000) galaxies.
  • Our solar system is 4.57 billion years old, Scientists estimate that in about 5 billion years, our Sun will expand becoming a Red Giant and In about 7.5 billion years its expanding surface will swallow up and engulf the Earth.6 Unknown Facts About Space
  • You wouldn’t be able to walk on Jupiter, Saturn, Uranus or Neptune because they have no solid surface
  • You become taller in Space because of microgravity.
  • Alight-year is the distance covered by light in a single year, and nothing moves faster than light.
  • The most massive star, and one of the hottest that we know of, is the RMC 136a1, with the mass of 315 Suns and the temperature of over 50000 K! It is 163,000 light-years away from the earth.
  • There are over 300 billion stars in our galaxy, the Milky Way. In the observable universe the estimate is that there are 70 billion trillion (7 x 1022) stars.4 Unknown Facts About Space
  • The biggest galaxy that we know of is over 30 times bigger than Milky Way. The IC 1101 is a supergiant elliptical galaxy and it spans over 5.8 million light years, with more than a 100 trillion stars.
  • Of all the planets in our solar system (apart from Earth), Mars is the one most likely to be hospitable to life. In 1986, NASA found what they thought may be fossils of microscopic living things in a rock recovered from Mars.
  • A full Nasa space suit costs $12,000,000.
  • The Andromeda Galaxy is approaching the Milky Way (where our solar system is) at rate of around 110 kilometres per second (68 mi/s) and eventually the two will collide to form a giant elliptical galaxy.
  • If two pieces of the same type of metal touch in space they will permanently bond. This is due to what is known as cold welding and it happens because the atoms of two pieces of metal have no way of knowing they are separate. This doesn’t happen on Earth because of the air and water found between the pieces
  • Astronomers have found a massive water vapor cloud which holds 140 trillion times the mass of water in the Earth’s oceans somewhere around 10 billion light years away – making it the largest discovery of water ever found.
  • The International Space Station is the largest manned object ever sent into space.
  • Our galaxy The Milky Way galaxy is 105,700 light-years wide. And it would take a modern spacecraft 450,000,000 years to travel to the center of our galaxy.
  • Any free-moving liquid in outer space will form itself into a sphere. This is because of something called surface tension, which is an imbalance of intermolecular attractive forces.
  • Only 5% of the universe is visible from Earth. 68% of the universe is dark energy and 27% is dark matter. Both of these are invisible, even with a telescope.
  • The highest mountain known to man is on an asteroid called Vesta. Measuring a whopping 22km in height, it is three times as tall as Mount Everest!
  • Galaxies come in many different shapes and sizes. These formations are broken in to 4 main categories, Elliptical, Normal Spiral, Barred Spiral and Irregular. These categories are then divided into sub-classifications. Our Milky Way is classified as an SBc Barred Spiral galaxy.7 Unknown Facts About Space
  • Using the naked eye, you can see 3 – 7 different galaxies from Earth.
  • In 2016, scientists detected a radio signal from a source 5 billion light-years away. This means that when the signal started its journey, Earth didn’t even exist. The detected signals were located using the Very Large Array (VLA) of the National Radio Astronomy Observatory in New Mexico.
  • The closest galaxy to us is the Andromeda Galaxy, it’s estimated at 2.5 million light-years away.
  • The distance between the Sun & Earth is defined as an Astronomical Unit. An Astronomical Unit (AU) equates to roughly 93 million miles, or 150 million kilometers.8 Unknown Facts About Space
  • The Space is completely silent. This is because there is no air in space, and air is needed to carry the sound vibrations.
  • The center of the Milky Way smells like rum & tastes like raspberries. This is due to a chemical called ethyl formate found in the center of the Milky Way, this is what gives rum its distinct smell and raspberries their distinct flavor.

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