Our Cosmic Bubble

Our Cosmic Bubble


Our cosmic bubble is a nurturing oasis, yet so fragile and vulnerable.   The Earth is home to us all, the only known refuge for life across the universe.  Past its thin atmosphere, we find life growing abundantly.  From the oxygen rich atmosphere, to the shielding magnetic field; the Earth seems to be almost perfectly adjusted for life.  As if the planet was made with humanity in mind.  As if this place we call home was predestined for life.  So much had to have gone right for the earth to be so hospitable.

However, this third rock from the sun has not always been so inviting.  For most of its 4 billion year history mankind would have not found it suitable at all.  In the first billion years of its infancy it was a violent place, covered in magma and constantly bombarded by asteroids.  Volcanoes leaked toxic gasses into the atmosphere that would be fatal to humans.

It was not until the proliferation of photosynthetic species that the oxygen rich atmosphere was formed at around 2 billion years into the Earth’s life.  And after this, aerobic life found the Earth full of opportunity.  It diversified and multiplied.  But this period was also full of ice ages, astrological bombardment, and mass extinctions.  Over 99% of all species that have existed have also gone extinct.  In fact, this period of time might speak more to life’s perseverance rather than the earths hospitality.  But then again, this only adds the the unlikeliness of mans existence.  Made evident every time we call out into the expanse of space without answer.

But to truly understand ourselves and our home planet, we must take a step back to see our existence from a different perspective.  We must be careful to not only see the snapshot of now.  Because we are as much our past as our present.  And to say that our planet is made for us, is to forget that life has spent the past 3 billion years conforming to this planet.  We have co-evolved.  Our environment has shaped us, while we have also shaped our environment.  Hardened by our violent beginnings and now comforted by our global reach.  Humanity should then not be so surprised by the Earth’s overwhelming hospitality because we would remember that we worked for so long to make it so.



Click to add a comment

Leave a Reply

Your email address will not be published. Required fields are marked *


More in Astronomy


What are Gravitational Waves and why do I care?

Brett VollertFebruary 12, 2016
Stones religion-faith

My Blind Faith

Brett VollertNovember 10, 2015
epicycles large

Dark Energy Epicycles

Brett VollertJuly 23, 2015
hubble deep feild

The Problem of Scale

Brett VollertJanuary 16, 2014

Citizen Science: Get Involved!

Brett VollertAugust 1, 2013

In Search of Europans (On Jupiter’s Moon)

Brett VollertApril 6, 2013
The Panspermia Hypothesis

The Panspermia Hypothesis

Brett VollertMarch 19, 2013

What are we teaching these kids?!

Brett VollertMarch 18, 2013

An Anthropic Universe (Many Worlds Theory)

Brett VollertJanuary 29, 2013

Thank you for your interest in Think Deeps. If you have any questions, comments or suggestions, please email

Copyright © 2015 Think Deeps Inc.