An Unknown Luminous Object Shakes the World

In the sky.

Chen Feng was flying at breakneck speed. After reaching Golden Core, his speed was truly terrifying.

Before long, he had reached an altitude of ten thousand meters.

Once he arrived, the temperature around him began to drop slowly.

An ordinary person's body would soon stiffen in such low temperatures, but they had little effect on him.

Looking down from this height, all he could see was a sea of clouds. He was already in the stratosphere.

To continue upward into outer space, he had to break free of Earth's gravitational pull, which required him to reach at least the first cosmic velocity.

At Chen Feng's current speed of Mach 1 per hour, breaking free of Earth's gravity would be difficult.

But as Chen Feng continued to climb, the surrounding air grew thinner, and the resistance he faced steadily decreased.

His speed soon surpassed Mach 1.

That was also why most human aircraft did not travel very fast within Earth's atmosphere, but moved extremely quickly once they reached space.

It had a great deal to do with gravity and air resistance.

A few minutes later, Chen Feng had entered the outer reaches of the atmosphere, and his speed began to skyrocket.

As his speed continued to increase, Chen Feng began to feel discomfort in his body.

Friction with the air was heating his body, and even his protective spiritual light was struggling to withstand the intense heat.

From this, Chen Feng also understood why only Spirit Transformation cultivators could enter space.

It was not because Golden Core cultivators were too slow.

It was because a Golden Core cultivator's protective spiritual light could not withstand such speeds, unless they had a powerful protective Law Treasure.

Cultivators who practiced the Stars Body-Refining Instruction were different. Their physiques were themselves equivalent