What is the Universe made of and what evidence s there for this ?
The universe consists of billions of galaxies that each contain billions of stars. Around some stars Planets and moons trace elliptical orbits. Within these orbits there are spherical bodies. These range in size from large asteroids to tiny particles smaller than a grain of dust, all of this is classified as baryonic matter by Astronomers. The fundamental core of the universe is known as the atom.
During the 1970’s astronomers collected information surrounding the mass of Galaxies. They calculated this by observing the acceleration of clouds on the edge of the galaxy in doing so they discovered the mass required for them to move at such speeds is equivalent to 5 times the mass of what could be seen in the galaxy. This material is known as dark matter.
In the 1970s scientists discovered that dying stars with the same intrinsic brightness were a further distance away from us than they should be. The explanation for this is the universe is expanding at an accelerating rate. This was baffling because the characteristics of gravity in dark matter should be strong enough that such expansion should be prevented. This led to the concept that it’s another material, with an antigravity effect and causing the universe to rapidly expand. This material is known as dark energy.
What is matter made of?
Matter = substance(s)of which any physical object consists or is composed of.
Matter is made up of many particles joined together. Most of the universe is not matter what is it?
Most of the universe consists of antimatter which is a material consisting of antiparticles which have an equal mass to ordinary particles of matter but have an opposite charge and quantum spin. Antiparticles bond together to form antimatter.