What would happen if matter didn't change to a gas liquid or solid?

Answer 1

If it is not a gas, liquid, or solid, then it is a plasma which is a form of matter where the nucleus of an atom and its orbiting electrons are separated from one another. Another possible form that the matter could take would be in the form of radiation, where the subatomic particles comprising the nucleus of an atom have separated from one another. This form of matter is degenerated but it is not nonexistent. Another form of matter not commonly found within our planet and solar system is called singularity matter which is the matter found in the singularity of a black hole. This type of matter is compressed by gravity to the point that it acquires infinite density because there are little to no spaces between each individual subatomic particle. At such high levels of pressure, even electrons cannot orbit the atom and they are bound tightly to other subatomic particles.

Answer 2

Absolute zero is intangible; also near this temperature any gas exist.