A star's light

Timeline and Additional Information

I thought it would be beneficial to provide a rough timeline of the solar system to provide context and give a rough understanding of when the events I'm writing about did or will happen. At the end of the part, there's additional information/space facts that may prove helpful to know for this story. Please note that the story will not be 100% accurate to the timeline in some places.

Note: "^" indicates an exponent because I can't figure out how to exponentiate numbers on my phone.

4.6 billion years ago: A group of protostars (hypothetically anywhere from 2 to 6 but two is our best guess) one of which will eventually become the Sun form a cloud of debris (stellar nursery) left by prior supernovae in the Milky Way.

4.59 billion years ago: The gas giants begin to form. In addition to the four we have today, one or possibly two extra formed, which were later ejected from the solar system. Jupiter, Uranus, and Neptune form closer to the Sun than where they are today.

4.55 billion years ago: The Sun ignites as it begins fusing hydrogen into helium.

4.54 billion years ago: Earth (and the other rocky planets) are formed at temperatures over 12,000°C.

4.5 billion years ago: Planet Theia collides with Earth. The debris forms the moon.

4.4 billion years ago: The Sun gravitationally separates from its protostar siblings forming the solar system.

4.1-3.8 billion years ago: The giant planets orbits shift (including Jupiter moving from the inner planet side to the outer planet side of the asteroid belt due to Saturns gravity. This causes most of the rocky planets to be destroyed) scattering debris throughout the solar system and forming the asteroid belt. Meteors bombard the inner planets, delivering water and organics to (the newly formed inner planets) Earth, Venus, and Mars.

4.3 billion years ago: Small world bombardment caused widespread volcanism on the inner planets.

4.0 billion years ago: The fifth gas giant after a violent encounter with Jupiter (and possibly influenced by Saturn) is hurled from the solar system into interstellar space.

3-4 billion years ago: A bigger than Earth sized rock possibly a planet, crashes into Uranus resulting and it's 98° tilt.

3.9 billion years ago: Meteorites with water bombard earth for 20 million years. The oceans are formed.

3.8 billion years ago: Single-celled bacteria develop in the oceans. Earth has its first life.

3.5 billion years ago: Bacterial colonies began producing oxygen with photosynthesis. Earth's atmosphere becomes 22% oxygen, turning it clear as opposed to the previous yellow due to methane abundance.

3.0 billion years ago: Solar winds strip Venus of its surface water leaving it the toxic, barren, mess it is today.

3.0 billion years ago: Due to the lack of intense gravity and a magnetic field, solar winds strip Mars of its water, rendering it a desert world.

1.5 billion years ago: Earthquakes result in volcanic eruptions which break Earth's crust apart into plates. This causes land to form in the ocean. This is the time when Pangea the supercontinent appears.

1.0 billion years ago: Volcanism on the moon stops.

750 million years ago: Longest and coldest ice age. The temperature drops to -500°C covering most of the planet in ice.

735 million years ago: Volcanoes erupt carbon dioxide trapping heat and ending the ice age.

540 million years ago: Ocean life began to grow complex with the development of plankton, sponges, early fish, and worms.