scientific unanswered questionsScience is expected to give answers to the important and the unimportant happening around us, and the truth is that most times it does not disappoint us. But there still remain mysteries that even the greatest scientists do not have an explanation for. Here are some of them:

1. What is consciousness?

Most of us have a sense of what is consciousness, but scientists have not yet defined it or even understood it fully. There are many theories about consciousness, and some of them even refer to quantum mechanics, but none can give a clear explanation. Scientists hope that in future, by improving the synthesis of artificial organisms and robots they will get closer to understanding the phenomenon of consciousness.

2. What happened before the Big Bang?

According to some scientists, before the Big Bang there was no space or time, so the question is meaningless. Was the universe created out of nothing? Out of chaos? Then where did the chaos come from?

3. What about the growing world population?

We constantly hear discussions about renewable energy, recycling, sustainable crops… But the growing population on the planet is an issue that confuses most of us. How can the planet sustain such a population? Especially if, according to recent research, life expectancy will increase up to 120 years…

4. How many planets are there in our solar system?

Ever since Pluto was banished from our solar system and is no longer considered a normal planet, but a “dwarf planet”, many have begun to have doubts about how many planets there are and where exactly they are located. At present, the official science acknowledges “the Sun and the eight planets”, but God knows whether all this will change and whether new planets and worlds will be discovered.

5. Why is ice slippery?

Query equivalent of “why is water wet”, which, despite its seeming simplicity, has not yet got the scientific explanation.

6. Is it possible to record one’s thoughts (just like to record a TV program)?

In other words, will we be able to re-experience situations we experienced in the past? For example, to fall in love with someone once more? Will it become possible to record our dreams and follow them when we are awake? Sounds shocking and dangerous. And no answer was given for that.

7. Will humanity ever reach the stars?

In the next 100 years, as scientists say, we will manage to discover the limits of our solar system and will send astronauts and robots there. However, the question: when will each of us have the possibility to travel to the stars and visit other planets (for example, on vacation), is still open.

8. What is deja vu?

Deja vu means “already seen” and describes the eerie feeling we have when we think we re-experience a situation or an event. The psychological study provides some “naturalistic” explanations at times, but the real cause and nature of this phenomenon remains a mystery.

9. Do ghosts exist?

Science never gave a clear explanation of what exactly are ghosts or whether they exist or not. Moreover, any attempt to study this phenomenon is not taken in serious, and any idea or theory on this is considered pseudoscientific.

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Anna LeMind

Anna LeMind

Anna is the founder and lead editor of the website She is passionate about learning new things and reflecting on thought-provoking ideas. She writes about science, psychology and other related topics. She is particularly interested in topics regarding introversion, consciousness and subconscious, perception, human mind's potential, as well as the nature of reality and the universe.