Matter is made of energy......only the forms are created and destroyed...like stars and planets and humans...the underlying universal mass of energy and matter does not change..
That whole paragraph is muddle and inconsistent.
In physics, the conservation of mass is that "mass" cannot be created or destroyed, only transforms. It is "mass", not "matter", they are talking about.
And another thing is, this part I have highlighted in bold:
the underlying universal mass of energy and matter does not change..
You are wrong.
Matter can change.
For example.
The metal tin (Sn2) is a MATTER, comprising of tin atoms, bonded together as a metal. Similarly, copper (Cu2) is metal made of bonded copper atoms. They are two separate MATTERS.
With the right proportions of two different metals (matters) and by applying heat to them, they formed into a different metal or matter: bronze.
If you have studied chemistry at all, you would know that, mixing two different chemicals would result in chemical reaction that will bond together to form new matter, or break them apart to form other matters.
It is not just the physics you have muddled up, but you have ignored basic chemistry.
If you know the basic of nuclear physics, you would know that nuclear fusion will break down an element (matter) into smaller lighter elements, for instance a helium atom will become 2 hydrogen atoms, hence, 2 new matters.
And in nuclear fusion, the opposite reaction will occur. For instance the sun's main fuel is hydrogen (matter). At the sun's core, the heat will fuse two hydrogen atoms together to form, a heavier element - helium - which means a new matter has been created by the sun. The fusion of lighter elements into a heavier element, is what cause the energy output in the form of light, ultraviolet radiation and heat.
So of course, when you consider these examples, "matters" can change.
The question is, will your pride allow to accept that you are wrong and learn from your mistake, or will you deflect my examples and make some feeble apologetic excuses.