The science of matter, space and time

Have you ever wondered how often you could split a grain of sand into smaller pieces? Have you asked yourself what the sky is made of? Perhaps you have dreamed of traveling backwards in time? Physicists are as curious as you are. It often seems that for every answer physicists find, two new questions arise.
Physicists try to understand the nature at the smallest scales possible. We know that atoms do not represent the smallest unit of matter. Quarks and leptons seem to be the fundamental building blocks but, perhaps there is something even smaller. Then why a proton has about 2,000 times more mass than an electron ?

There may be a whole new undiscovered super-symmetric particles

Empty space, as discovered, is actually not empty at all. Quantum effects constantly produce particles and antiparticles "out of nothing," only to have them disappear few moments later. Space itself can either be almost flat or curved, depending on the amount of matter it contains.

It is now learned that many subatomic processes can be reversed in time, but not every process. There are some small but crucial differences in the way matter and antimatter behave. Could it be the reason why our universe is made of matter, while antimatter has all but disappeared?

Astrophysicists have found that less than 10 percent of the mass of the entire universe consists of the kind of "luminous" matter that we can see. What is the dark matter that makes up the rest of the universe? How can we find out? Though we understand many important properties of the fundamental building blocks of our universe, there are untold mysteries still to solve.

Like adventurers entering unknown territory,
physicists forge ahead into ever smaller dimensions.
What will be their next discovery?

Theory of Everything


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