Important Space Facts that you Need to Know
The human mind by nature awes at the vastness of the space above. This can be attributed to the existence of celebrities and other attributes which happen at different period of the year. Humans for a long time have been on a mission to uncover the mysteries of the space with most scientists coming up with very good results. The space as we know it is filled with planets and other bodies like the steroids and stars. But not too much is understood about the space on a factual foundation. This is attributed to the fact that there have been so little space exploration expedition. However, this is not to mean that you can not find facts about space. Below are some of the important space facts that you should know.
The sun is at the center of the universe. The sun was proven to contain a substantial bulk of thing, which is filled by around a million times the mass of ground. This feature makes the sunlight the most important part of the universe. Additionally, it has been discovered that our solar system orbits the sun. Bearing this in mind, it’s necessary to say that sunlight makes up to 99. 8 % of the entire universe.
It is also important to note the fact that the hottest planet is not one that is closest to the sun. From basic knowledge it is known that mercury is the planet that is close to the sun. One of the substantial characteristic that doesn’t make mercury the hottest planet is the simple fact that it doesn’t have an air. This leaves it warm during the day if its surface is totally exposed to sunlight. With in this period, the typical temperature can grow up to 425 degrees Celsius. However, at night the planet becomes cold as low as -180 degree Celsius. Venus holds the title of being the most hot planet in the universe. The amount of hotness can attain up to 500 degree Celsius.
A very interesting fact about metals in space is that it sticks together when two of them come together. They attach to each other in a process called cold welding. This happens as a result of the absence of air in space. In earth, this process does not occur without specific treatment. This can be attributed to the presence of oxygen in the environment. Nevertheless, cold welding is employed in a number of the manufacturing process in the world, under technical conditions. The equipment used by astronauts is don’t get influenced by those impact due to the oxide coating placed in the equipment.