515 The Human Left Behind

On July 3, 2020, a stream of pulses suddenly spouted from the spaceship in the solar system. The pulses streaked across the sky for tens of kilometers, brightening the dark sky.

Soon, the heavy body of the spacecraft started to move slowly. After about 10 minutes, it managed to free itself from the gravitational pull of the sun and left its orbit, leaving the solar system.

...

On one of the mornings of the Earth.

The frozen metal board on the snowy ground shook a little and a loud thud was heard. After a short while, a human shadow emerged carefully from the ground, drilling through and emerging on the ground with force. He shivered when the cold winds blew.

It had been five years since the extinction of the aliens. The sky was a lot brighter and there was a substantial increase in temperature despite it still being about -30 degree Celsius.