MYSTERIES OF THE UNIVERSE
Added on: 13th Oct 2016
ARE WE ALONE?
A great mystery that many thinkers and scientists have tried to
solve throughout the history of human civilization, but it has
yet to be answered. Can we recognize all kinds of life?
What if some different type of life is staring at us but
we can’t understand it?
WHERE DID LIFE COME FROM?
It’s without a doubt one of the oldest questions and biggest
mysteries in human history. Though there are theories out
there that seek to explain the dawn of life; explanations
that involve increasingly complex chemical reaction with
chemical reactions becoming self-sufficient, the truth is
scientists don’t have a clear definitive explanation for life.
DO WE LIVE IN A PARALLEL UNIVERSE?
For as long as humans have been able to think and reason,
a question has loomed in the back of our head: How do we
know that everything we see is everything there is? Modern
science is almost certain there could be parallel universes
(and thus lives) but to test such a notion is difficult.
WHAT IS GRAVITY REALLY?
Gravity has played a big part in making the universe the way it is.
Gravity is the force that makes pieces of matter clump
together into planets, moons and stars. Because of
gravity, if you drop something, it falls down, instead of
up. Well, everybody knows that! But, what does this
really mean? Even though scientists can observe and
understand how gravity “behaves,” they have no clue
why it exists. For example, if gravity is a force that
causes all matter to be attracted to all other matter,
why are atoms mostly empty spaces inside? Or why the
forces that hold atoms together are different from
gravity? Is it possible that all the forces we see at work
in nature are really different sides of the same basic force
or structure? All these questions make gravity’s nature
and existence one of the biggest mysteries.
IS WATER NECESSARY FOR LIFE?
From antiquity to today, all scientists and biologists have been
absolutely sure about one thing: water is essential for life.
Recent studies, however, have shown that microbes can
remain alive in the absence of water nearly indefinitely and
science now wonders if water is essential only for the kind
of life we can recognize and understand.
ARE THERE OTHER PLANETS LIKE EARTH?
As of yet we have not found a planet exactly like Earth, or even
one that is capable of harbouring life. However there is
evidence that a planet like Earth is not that unrealistic.
Last year, NASA discovered the first near Earth size planet
in the “habitable zone” around a sun very similar to
our own (Kepler-186f).
WHAT IS THE FATE OF THE UNIVERSE?
A scary question to think about! When will the enigma we call
the universe come to its demise? The answer as you
might have guessed it is shrouded in uncertainty. Scientists
are not even sure if the universe will come to a defined
end or a more gradual “tail off”. Suggestions for the
universe’s death range from “heat death”, which is the
death of all differences in heat in the universe, to a
universe that collapses in on itself. All theories are scary.
DOES AN ANTI-UNIVERSE EXIST?
The whole “antimatter” issue started officially in 1928 with
physicist Paul Dirac, who developed a theory that
combined quantum mechanics and Einstein’s special
relativity to provide a fuller description of electron
interactions. What we learn from this theory is that matter
and antimatter annihilate each other. So if we and
everything else are made of matter, why do we still exist?
Didn’t matter and antimatter completely annihilate at the
time of the Big Bang? Perhaps some antimatter still exists
somewhere else? Such questions have led to speculative
theories, from a break in the rules that govern the
universe to the existence of an entire anti-universe