Let me ask you instead why you think it should DISAPPEAR at absolute zero, which would actually be a lot harder to explain.
In the real world, nothing is ever at absolute zero, so it's kind of a moot point. Even if we posit that miraculously something was, the mere act of illuminating it would transfer energy to it and raise the temperature some infinitesmal bit above absolute zero.
Zero relative velocity to another object, sure no problem. Zero absolute velocity, not possible as there is no absolute reference to compare to.
When observing an object, you can determine if it is not at absolute zero by looking for any signs of movement, such as vibrations or changes in temperature. Objects at absolute zero would not exhibit any movement or show any signs of heat.
Absolute zero is the lowest possible temperature where particles have minimal motion. If you were to touch an object at absolute zero, the extreme cold would cause rapid heat transfer from your body to the object, potentially leading to frostbite or severe tissue damage. However, achieving absolute zero is currently impossible in practice.
Any object above absolute zero gives off thermal energy in the form of heat radiation.
It is the coldest temperature. Nothing is colder than absolute zero. Scientists do know what happens in absolute zero because to get it to absolute zero, they have to put the object in something colder. But like mentioned above, nothing is colder than absolute zero. It is pretty much the end of the thermometer.
When an object is still it has no momentum. That is, the momentum is zero.
The temperature at which an object's energy is minimal is called absolute zero. It is the lowest possible temperature where particle motion ceases and entropy is at its minimum. At this temperature, the object possesses no thermal energy.
Absolute zero is when the atoms of all matter will stop moving. It can't be further cooled once they stop.
As an object approaches absolute zero, its atoms and molecules lose kinetic energy and slow down, but they will never completely stop moving due to Heisenberg's uncertainty principle. This principle states that it is impossible to precisely know both the position and momentum of a particle, preventing an object from reaching absolute zero.
Absolute zero is the theoretical temperature of an object that has no kinetic energy. This is 0 on the Kelvin scale which relates to -273.15oC. Nothing can actually reach this temperature as to achieve a kinetic energy of 0 Joules, the object would have to be removed from the universe entirely.
The Third Law of Thermodynamics."Absolute zero (0 K) is the lower limit of temperature. The temperature of absolute zero cannot be attained physically because to do so would require virtually all the heat to be taken from an object. Therefore, it is impossible to attain a temperature of absolute zero."
At zero degrees Kelvin, also known as absolute zero, all molecular motion stops. It is considered the coldest temperature in the universe, and no physical object can reach this temperature in reality.