Earth's timeline is a video that shows the historic events of Earth.



'4.55 billion years ago , small objects in The Solar System clumped together to form a planet called Earth.

4.52 billion years ago , a Mars sized object called Theia collided with Earth. This gave Earth rings. But these rings came together to form the Moon

A day on Earth only lasted a few hours.

4 billion years ago , Earth got hit by many asteroids . Some of which contained life and organics . Without these asteroids , we MAY not be here!

Hydrothermal Vents were possibly the first ever life forms. 3.2 billion years ago , oxygen producing organisms formed. Cyanobacteria or blue green algae became the first microbes to create photosynthesis . Photosynthesis is an action where carbon dioxide goes into the plants stomata then it creates oxygen . Because of this , 2.3 billion years ago Earths atmosphere became oxygen-rich. This , for whatever reason , caused an event called "Snowball Earth". It was super cold and temperatures dropped very low.

2.1 billion to 225 million years ago , different supercontinents kept forming . One of which is famously known as Pangaea .

65 million years ago , an asteroid that was 10km long callided with Earth . This asteroid wiped out 75% of species (This included dinosaurs).

2 million years ago , humans started roaming this planet and started killing animals which are now extinct (Some of them anyways..) Devastating events has happened such as The Black Death , WW I and II and the Cuban missile crisis. They have happened because of human actions! Why can't we just all get along? If aliens come then they know we mean no harm!'


'Now let's talk about today!

Earth is the only known planet to support life.

Humans have changed this planet forever in good and bad ways . These "bad ways" cause global warming.

Earths atmosphere is 78% nitrogen and 21% oxygen and the last 1% is other elements.

Earth is the 3rd planet from the Sun. Earth is in the habitable zone where it's not too hot or cold.'


'250 million years from now , a new supercontinent called 'Pangaea Ultima' will form. But in 1 billion years , Earths water will evaporate because the Sun is eating too much food and being fat and the Suns increased luminosity.

7.59 billion years from now , the Sun will become a red giant and will finally swallow the Earth.'


  1. Earth
  2. Theia/Moon
  3. (Technically mentioned)
  4. Humans
  5. Sun (Mentioned)
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