What does the cold in space feel like?
The cold in space is unknowable, and we probably will not ever know! But, theories have been made.https://www.space.com/how-cold-is-space, “Temperature is a measurement of the speed at which particles are moving… So… there would be no particles and radiation, meaning there's also no temperature.“ This means that in an empty region of space, there aren’t any particles to measure, meaning that there is no temperature. This is important to answering the question because it shows there is no answer. (No temperature = no “feeling” cold.) In short, there aren’t any particles in empty space, meaning there is no temperature.

.

Without temperature, the thermometer is empty.

What is the difference between a sun-like star’s and a massive star’s life cycle?
Stars can vary extremely based on their size! Research shows that “The exact lifetime of a star depends very much on its size. Very massive stars use up their fuel quickly. This means they may only last a few hundred thousand years. Smaller stars use fuel more slowly and will shine for several billion years,” meaning smaller stars will live longer, as they take up less fuel. Larger celestial bodies will burn out faster because they require a lot more fuel, causing a more violent end. This addresses the question as it shows the biggest part of the change, the life cycle! The second one would be the supernova vs. the planetary nebula. In short, the biggest change of a star’s life cycle is the lifespan, as large stars can live as little as a few hundred thousand years, while smaller stars, like the sun, can burn for billions of years.

What Are the Stages Of The Big Bang?
Although we don’t know how the universe was made, many, many people theorize that it was created as a result of a MASSIVE EXPLOSION. As said by NASA, “Around 13.8 billion years ago, the universe expanded faster than the speed of light for a fraction of a second, a period called cosmic inflation.” Cosmic inflation was the start of the Big Bang. After the Big Bang, there was an inflationary period in which the universe expanded more rapidly than light can travel. This caused quarks to collide and create protons and neutrons. These were the building blocks of the universe. “Infinitely small, infinitely dense. Primeval fireball 1 force in nature - Supergravity.” The Big Bang was a fireball with a temperature beyond anything we can even think of recreating today. It has only one force, supergravity. Nobody knows how the Big Bang started, Then, atoms and quarks started to form. The first matter. The matter collided and became molecules, more and more linked and bonded, creating matter. Thus, the universe was created!

An artist's rendering of the big bang.