This universe is full of mysteries and enigmas. The scientists and researchers are always into discovering the hidden secrets of this universe. These hidden secrets of the universe are a great source of fascination for both the researchers and the common people. That’s why there are so many movies and novels describing different scenarios related to space. Space exploration has helped humans to amazing things in space. Some of the most amazing space discoveries are listed below:
The planets that orbit the stars other than the Sun outside our Solar System are known as Exoplanets. Before the discovery of these planets, people used to believe that only our Solar System consisted of the planets orbiting around the sun. With time, people started to accept the heliocentric model of the Earth. However, it took years before the astronomers officially announced the discovery of the 1st exoplanet outside the Solar System in 1992. Later on, the discovery of the exoplanets opened up the pathway for further space exploration. It also triggered the people’s interest in discovering the universe beyond the solar system.
The humans have been using stars for navigation and timekeeping for millions of years. Although people in past were not aware of the exact distance of the stars from the Earth and their chemical composition, they understood the correlation between the stars and the direction very well. This was one of the space discoveries that helped adventurers reach new places. It also proved to be very helpful in navigating through the seas and oceans when no other visible landmarks were available nearby.
3. Black Holes
Black holes are another hidden mystery of the universe. They have been discovered recently. Still, the scientists are not fully aware of the nature, composition, and characteristics of these black holes. These black holes possess a very high gravitational pull that occurs after the death of a star. Their gravitational pull is so high that even the sunlight can’t escape. That’s why they appear black in color.
Some of the scientists suggest that the black holes could be the openings to some new dimensions of the universe. However, some more technology is needed to prove this claim. Since the black holes don’t emit or reflect light, so they are not visible to naked eye. Their presence is discovered as the objects around them react to their very high gravitational pull.
Before the scientists were able to discover the galaxies other than the Milky Way galaxy, we had no idea of how the universe was organized. When they were able to identify other objects in space, they ventured to explore it further. They found out that the universe is much vast than they previously thought. Moreover, there are a number of galaxies with their own composition besides the Milky Way galaxy. The discovery of millions of galaxies in the universe has given momentum to the theory that there may be life existing on other planets besides the Earth.
5. Alien Life
Although humans couldn’t find any verified proof of the existence of alien life in the universe, many people alleged alien sightings over the years. People find a strange fascination with life outside the Earth. That’s why they spend a considerable amount of resources trying to discover if alien life really exists. The scientists have acquired some data that showed the existence of inactive microorganisms in the ice outside the Earth.
However, most of the scientists don’t back this discovery due to lack of some solid evidence. If the scientists are able to bring some evidence related to alien life, then this will be one of the most exciting space discoveries ever.
6. Ice Space
According to the astronomer, the temperature in Space is more than 270 degrees below zero. Such a low temperature leads to the formation of ice even on other planets. The scientists are confident that this ice may indicate the presence of water in some form on other planets. And the presence of water raises the possibility of life on other planets.
Although there are compounds other than water that may also form ice, the scientists think that such components may be conducive to sustaining life. In their opinion, some life forms may also lie dormant in the ice till the right environmental conditions prevail for them to proliferate.
7. Dark Matter and Dark Energy
The scientists have not yet completely understood the concepts of dark matter and dark energy. A large amount of information is yet to be discovered due to limited technical resources. So far, they have discovered that the dark matter is responsible for the expansion of the universe. The big bang theory that is used to explain the origin of the universe also involves the black matter.
The scientists believe that the dark matter comprises most of the matter in the universe. However, we have been able to perceive only 5% of the universe to date. This means that we are still unaware of the 95% of the universe we live in.
Quasars are another thing that the scientists are not completely aware of. However, they think that quasars are the brightest objects in the universe. They exist in the areas where there is a supermassive black hole. The energy emitted by the quasars is so great that it accelerates the particles at the speed of light. Their energy is greater than the combined energy of all the stars. The scientists believe that studying these objects will open up great possibilities in terms of alternative energy sources. If their energy could be harnessed by any means then it would be the most powerful energy source available for the humans.
9. Comets and Asteroids
Comets and Asteroids are relatively smaller objects found in the universe. Both of them may appear the same in nature, the main difference is in their composition. The asteroids are made up of rock and metal while the comets mostly comprise of ice.
According to one of the theories, the life on Earth planet originated when an asteroid introduced some life forms on the planet. The scientists are further exploring the asteroids that hit the earth at different times to have an insight into the composition of other objects in space.
10. Light Year
The conventional means to measure distance on Earth can’t be used to measure the distance in space. So, the scientists introduced a new unit to measure the distances in space. According to them, the distance which a beam of light travels in a year is known as one light-year. It’s approximately equal to 9.5 trillion kilometers. This discovery is quite influential for measuring distances in space travel. In this way, the scientists are able to gauge how far the objects actually are in the space.
Furthermore, they can also predict how long an expedition would actually take place to happen in space. Due to this discovery, the scientists are actually able to express large distances in much smaller numbers.
Although scientists are looking for more amazing things in the universe, there is still a vast information that is hidden from us. The quest to know more and more about space drives them to push further. So, they come up with new ways to study the universe around us. Moreover, the universe is expanding so quickly that the astronomers are using Hubble for the past few years to enhance the accuracy of the expansion parameters.