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2. THE SUN
Our Sun is at the centre of a remarkable array of planets, moons, asteroids, comets and dwarf planets. It provides the Earth with the heat and light that has fuelled evolution over the past 5 billion years. But it also bombards every planet and object in the Solar System with harmful radiation. Some planets have survived this onslaught, others have been decimated. In later posts we’ll see how…
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1. THE SOLAR SYSTEM
1. THE SOLAR SYSTEM
Our Sun is at the centre of a remarkable array of planets, moons, asteroids, comets and dwarf planets. This series of posts is designed to give you some of the more unusual facts about these which I hope you will find interesting. Distances are astronomical units [Au] and are approximate. 1 Au = 150 million kilometres Lets start with some numbers. The Sun is a rather ordinary star among…
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Welcome to Brian's Blog
Welcome to Brian’s Blog
via Welcome to Brian’s Blog
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HIBERNATION FOR SPACE TRAVEL
HIBERNATION FOR SPACE TRAVEL
via TECHNOLOGY FOR CRYO-HIBERNATION – 2
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Imagine Life Elsewhere?
via Welcome to Brian’s Blog
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WE ARE NOT ALONE IN THE UNIVERSE
UPDATED WITH LATEST DATA ON DISCOVERED EXOPLANETS
Our sun is one of over 100 billion stars in the Milky Way galaxy and there are more than 100 billion galaxies in the universe which was formed about 4.5 billion years ago.
Life on Earth has existed for many hundreds of millions of years and in our humanoid form, for only the last 10,000.
It is the author’s belief that considering the vastness of…
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IS THERE LIFE ELSEWHERE? - YOU BET THERE IS!
IS THERE LIFE ELSEWHERE? – YOU BET THERE IS!
During the past 20 posts I have tried to take you, the reader, through a technical journey of feasibility of space travel to the stars. I believe this will be possible by the mid 22nd century and that the necessary technologies will…
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IS THERE LIFE ELSEWHERE? - THE HABITABLE ZONE
IS THERE LIFE ELSEWHERE? – THE HABITABLE ZONE
In the last post I hope I explained how all the elements and building blocks for life came from the death throes of exploding stars. But having produced these ingredients and flung them far and wide throughout the cosmos, we are still a…
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IS THERE LIFE ELSEWHERE? - WE ARE STARDUST!
IS THERE LIFE ELSEWHERE? – WE ARE STARDUST!
In the last post I talked about The Big Bang – a cataclysmic event 13.8 billion years ago which resulted in all the matter we see [and don’t see] in the Universe. But how did this lead to us and all the life on this remarkable…
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IS THERE LIFE ELSEWHERE? - THE BIG BANG
IS THERE LIFE ELSEWHERE? – THE BIG BANG
For the next few posts I will talk about the big question – Is there life elsewhere? But to do that I need to go back over 13 billion years to the formation of the Universe. We need to understand how and where we came from…
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JOURNEY TO A STAR – FORCE FIELD
JOURNEY TO A STAR – FORCE FIELD
JOURNEY TO A STAR – FORCE FIELD.
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JOURNEY TO A STAR – FORCE FIELD
JOURNEY TO A STAR – FORCE FIELD
Over the last few posts I have discussed the many dangers in space that threaten our star mission – the asteroid belt, comets, meteoroids, meteors, meteorites, space dust and debris etc. We also have to protect our astronauts from solar radiation from our sun as we travel away…
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JOURNEY TO A STAR – METEOROIDS, METEORS, METEORITES
JOURNEY TO A STAR – METEOROIDS, METEORS, METEORITES
Let us remind ourselves of the definitions of the many objects flying around in space..
Comet – a relatively small solar system body comprising ice and debris that orbits the Sun.
Aste…
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JOURNEY TO A STAR – ASTEROIDS – SHAPERS OF EARTH
JOURNEY TO A STAR – ASTEROIDS – SHAPERS OF EARTH
In this post I will concentrate on asteroids. After planets they represent the largest objects and most numerous in the solar system. They are a real danger to our star mission as we have to travel through them at the start of…
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JOURNEY TO A STAR – ASTEROIDS – SHAPERS OF EARTH
JOURNEY TO A STAR – ASTEROIDS – SHAPERS OF EARTH
http://www.youtube.com/watch?v=Y8Ij9xboreA
In this post I will concentrate on asteroids. After planets they represent the largest objects and most numerous in the solar system. They are a real danger to our star mission as we have to travel through them at the start of our journey.
[see…
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JOURNEY TO A STAR – ASTEROIDS, METEORITES, COMETS
JOURNEY TO A STAR – ASTEROIDS, METEORITES, COMETS
In the last post I discussed traversing the asteroid belt – a minefield of danger for our spaceship right at the start of our star mission. But there are other bodies flying around in space that we have to avoid and there is often confusion as to their true nature.
I’m referring to asteroids, meteoroids, meteors, meteorites and…
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JOURNEY TO A STAR – ASTEROID BELT
JOURNEY TO A STAR – ASTEROID BELT
Between the orbits of the planets Mars and Jupiter lies the asteroid belt; a huge region of asteroids and minor planets presenting its own dangers to our star mission.
So not only do we have to set a collision course for Jupiter [previous post] but we have to navigate the equivalent of a solar minefield of objects ranging in size…
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