Darkkkkkk...
Probably the most darkest thing in the world is The Black hole, Its so dark that even Light could not penetrate through it.
But till date We humans dont have any technology to send Humans or any kind of satellites to places which are extremely far from the Earth. Therefore, we conclude that we can't explore or discover the most of the parts of this mighty universe. So, in this time, Till we are alive on this Planet, What I think is that we can never discover about the darkest or the brightest substance in this universe. What we study in Class 8th and 9th about atoms is most probably about the theories and experiments put up by Great scientists. We can never practically show or prove a theorems. Well, That's the fact about theories that they can only be written and proved on papers. Many a times, We have conversation with our friends or siblings about the time machine. The time machine is too a theorem. It can be possible Ethier in our dreams or their our only 2 ways by which the a person can carry out Time travel.
1st way is to barge in a black hole since there is no existence of time in a black hole. Other way is to travel faster than the speed of light, in that case we feel people around us are moving too slow. But the fact is both the ways are just theorems, and can never or in this time cant be practically performed. Many countries are spending satellites, rovers or orbiters to explore this endless space. Endless!!! Yes, it is because the space is expanding and probably it will never end. From the assertion we can conclude that we can never explore this entire universe.
SpaceX is the company which is taking the risk of taking humans to Mars by 2024. It a risk because it's a very arduous task to cross the gravitational sphere of influence.
The most important thing is here that why are we exploring the space and sending human expeditions to moon and Mars. The main reason for this is that we have realized that Our planet Earth would become barren within next thousand years.
Now particularly taking that will Life would be possible In Mars or Moon. Well, the answer for this is that No. Life is not possible In Mars, Not a single reason but their are many reasons for this conclusion. According to some scientist, If we Humans think of possibilities of life, then we should probably look for Titan, one of the Moon of the Planet Jupiter. It is because Titan has a atmosphere which nearly meets the requirements required for Humans to carry out various biological processes. Titan has an ice surface and gases such as Hydrogen trapped in there.
Coming to the topic of exploring the space, If we think deeply we will find that people in the past had no idea of what technological advancements we humans have achieved.
Not only Space, we humans have not even explored the whole of Earth, and hence we conclude that we haven't found all the elements that exist on earth.
Now from this introduction, I am sure u must have already guessed about the story.