Why I think there is life out there

The Helix Nebula. Credit: NASA.gov

Limo’s Science: Series 1 (On Medium) #1

I am a big believer in the field of astrobiology (the search for life outside of our home planet) and I strongly believe that there is life out there.

There are a bunch of great sciences out there, all of them with questions unanswered. It is a great time to be a scientist, as there is so much information at our fingertips, so much technology to use.

I may only be 14, but I believe that I can create a positive scientific discovery that will benefit the knowledge of others and our knowledge of science.

In this series, I will be talking about science in a way that is easy to understand and that clearly explains everything that you want/need to know about a scientific topic.

This post will also be published on the AoD portal: http://allianceofdroids.org.au

Also, if you want video tutorials to do with science, head on over to my YouTube channel: https://www.youtube.com/channel/UC4U1i-c3GOMUiqRmNTGYoyg. I have just started work on the script for the next video in the series.

As always, please remember to follow me on Social Media.

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The Field Of Astrobiology: 101

Credit: NASA.gov

Astrobiology is an increasingly popular subject at many different institutes and companies around the world. NASA (America’s Space Agency), the ESA (European Space Agency), CSIRO (Australian Science) and many more government-run projects are investigating life off-world.

However, due to the rise of private space companies (SpaceX, Virgin Galactic, Mars One), there are private agencies that are contesting for the discovery of extraterrestrial life.

Regardless of who discovers life off of our planet, it will be a monumental discovery and stepping stone. We will finally be a step closer to answering

Why are we here? Who are we? Are we alone? Do we have a purpose? How common is life?: Limo Arbuckle

There are also a number of websites available where you can find out news about this exciting field. You can also find out ways to understand it.

Here we go:

Astrobiology Magazine | NASA | Astrobiology | Astrobiology Future |

Official Logo for Astrobio.net. Credit: Astrobio.net

Where could life be hiding?

There are countless suns and countless earths all rotating round their suns in exactly the same way as the seven planets of our system. We see only the suns because they are the largest bodies and are luminous, but their planets remain invisible to us because they are smaller and non-luminous. The countless worlds in the universe are no worse and no less inhabited than our earth. For it is utterly unreasonable to suppose that those teeming worlds which are as magnificent as our own, perhaps more so, and which enjoy the fructifying rays of a sun just as we do. —Giordano Bruno

There are many places life could be existing — thriving — in our universe. There are over 100 billion (10*10¹¹) galaxies in our universe, each with around 200 billion (2.0*10¹²) stars. Up to 95% of stars (on the main sequence) could host planets. There may be an average of 2–4 planets per system (not including binary star systems).

Putting those figures together, there may be 40 BILLION planets in our galaxy ALONE that could be habitable. Note that when I say habitable I mean habitable to life as we know it.

There could be tons of different types of life (we are carbon-based) — nitrogen-based lifeforms, hydrogen-based, even organisms in the clouds of the Sun or planets like Jupiter. There is no evidence that the only organisms in our universe are carbon-based.

More to come (check back tomorrow).

Note: I am continuing this post as it is getting quite long.

Here are some more photos:

The Huygens lander on Titan
The Cassini Space Probe
Neutron Star
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