Some amazing space facts that I came across internet are as follow:
- If two pieces of metal touch in space, they will melt together and become one. It is something called “cold welding” or “contact welding”. This does not happens on earth because the atmosphere puts a layer of oxidised material between the surfaces which makes the welding processing impossible. This could seem like a big problem for satellites, space station in space but since the metals come from earth, they are already coated with the material.
- The sun is actually not yellow, it only appears yellow because of earth’s atmosphere. In reality sun outputs all colours in visible spectrum at almost equal intensity. Which means the true colour of sun is actually white.
- Stars can be weird. There is a star out there with the name Wise 1828+2650. But it’s not the name which is interesting but rather how cold it is. It is the coldest star ever found with a temperature range of -23 to -127 degree celsius. Another weird star is BPM 37093, the star core is made up of diamond (10 Billion Trillion Trillion carats to be precise). And Neutron stars are weirder, these stars are so dense that a single teaspoon of it’s material weigh over 100 Million Ton.
- In 2023, we might have a reality tv show on Mars. This if the Mars One project is successful which has a goal to set permanent colony on Mars. Out of over 200,000+ enteries, only 4 people will be selected who will be sent on and every step of the journey will be documented. Every 2 years additional colonist will be sent to set the further coloney (4 in 2023, 8 in 2025, 12 in 2027 and so on).
- Time on Earth moves faster than time in space. Time to melt your brain: all astronauts are time travelers. That's a fact! Why? Because the planet's orbit gives us Earthlings an extra second per week. It's called "time dilation" and it's one of the many contributions Albert Einstein made to the study of outer space.
- Outer Space smells unbearably awful. What does outer space smell like? It smells like it wants you to die. Imagine if you walked into a room that smelled like rum, sulfur, fried steak, burning metal, and raspberries.That's what outer space smells like. The universe is sending you a message: Go back to Earth - this place isn't meant for noses.
- There's a giant black hole hurtling through space at 3 million miles per hour. Let's not mince words: a supermassive black hole weighing in at millions (millions!) of times heavier than the sun is currently hurtling through space at roughly three million miles per hour. This particular black hole was ejected from its own galaxy and is roaming between galaxies, four billion light years away.
- Suppose a star is 100 light-years away from the Earth. Therefore, the light coming from the star (which carries its information) takes roughly 100 years to reach Earth. When we look at the stars, we are seeing them as they were years ago. If a star is 100 light years away, we are seeing it as it was 100 years ago, etc. If a star dies (goes nova), we won't know about it for the year-equivalent of its distance in light-years. Then, one day, we'll see a flash in the sky and we'll know that if it is 27 light-years away, the star died 27 years ago.
Source: Internet