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Thursday, 7 March 2013

Europa


Europa is the sixth closest moon of the planet Jupiter, and the smallest of its four Galilean satellites, but still one of the largest moons in the Solar System. Europa was discovered in 1610 by Galileo Galilei and possibly independently by Simon Marius around the same time. Progressively more in-depth observation of Europa has occurred over the centuries by Earth-bound telescopes, and by space probe flybys starting in the 1970s.

  • Europa is the smoothest surface of any planet/moon in our solar system.
  • Most of Europa's surface is highly reflective, because it is mostly made of ice.
  •  Europa has a very thin tenuous atmosphere mainly made up of molecular oxygen.
  •   The Galileo probe found our that Europa has a slight magnetic signature that it picks up from Jupiter's magnetic field but the signature could only be created if Europa was covered with something that conducted electricity much like salt water dose. 
Europa may be 485,000,000 miles away from the sun but it isn't actually that cold, turns out that Europa is caught in a constant gravitational tug of war with Jupiter its self and its sister moons IO and Ganymede causing friction on Europa meaning its sub surface oceans are probably quite warm and liquid.

The earth is slowing down

The earth.It is slowing down now this is nothing to be worried about.Take a guess at what is causing it to slow down? Yeah it is the moon. All though the moon's gravity controls our tides It is that very thing slowing us down.How you ask it is very simple the moons gravity is pulling the tides round which is causing enough friction to slow us down now this number is very very small over a long period of time it has a bigger impact





  • Today the earth spins 1-2 milliseconds slower then it should.
  • This is over 101 years witch is a long time but it is slowing down.

Our Galactic Neighbour Is Up To 40,000 Light-Years Closer To Us Than We Thought


Using high-powered telescopes and a sophisticated system of measurement, scientists know the distance of a neighbouring galaxy more accurately than ever before. 
The study measured the Large Magellanic Cloud, on of our closest galactic neighbours, to be about 163,000 light-years from Earth — it is the most accurate measurement since scientists first tried to guess the distance a century ago.

Knowing that our neighbouring galaxy is actually closer than first anticipated is quite a daunting fact, but it is slightly easier to get to now.

Wednesday, 6 March 2013

Thanks to all Viewers

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Thank you Don't forget to share our blog with friends.

 

Rogue planet

A planet that does not orbit a host star has been found 100 light years from Earth.
The planet, named CFBDSIR2149, is known as a rogue or free-floating planet because it wanders through space free of its parent star.


This planet has a temperature of around 398 degrees Celsius it also has a mass between four and seven times bigger than Jupiter's.


A rogue planet is thought to form in two different ways  it either starts as a normal planet and is then kicked out its star system believed to be the case with CFBDSIR2149 or it begins the same way a star does  from collapsing gas and dust  but does not have enough mass to cause the nuclear fusion that creates starlight.  

Latest solar flare activity

A swirling mass of plasma churned above the Sun for almost two days before it finally erupted (Feb. 25-26, 2013). Some of the matter was cooler than surrounding matter so it appears quite a bit darker than the material swirling behind it. The images are a combination of two wavelengths of extreme ultraviolet light. 

You can read more about solar flares here 
http://scienceforyou123.blogspot.co.uk/2013/03/a-solar-flare-is-large-explosion-of.html

Tuesday, 5 March 2013

Problems with world and how to fix them

Earth, A very important element to life BUT we are screwing it up as i type this.Our planet, a couple of billions of years after it was created it was in the right position to sustain life.But recently we have had some dramatic changes to our planet and it is very worrying.

  • Hotter climate
  • Melting ice-caps  
  • Deforestation 
  • Burning fossil fuels  
  • And many more


The greenhouse effect
Humans are not realising the dangers of all these things that we are taking or destroying. Something that will take hundreds of years to grow some that are not replaceable witch is very worrying.once we run out of this it is gone forever Witch means, No fossil fuels NO Forest's which then leads into other problems.such as More carbon dioxide into the climate creating the green house effect.

THIS also is a very BIG problem because of how fast the ice-caps are melting.Now your probably thinking why does it matter if the ice caps melt.well i will tell you why it matters its because depending were you live the sea levels will rise roughly about 215ft (65m) that's why it matters.Now don't worry this will not happen in this generation but we want a safe environment for our children and our grand children


 
Ways we can help the environment

Public transport or Cycling
 Now public transport yes it is a pain,But will reduce the amount of carbon dioxide going into the atmosphere also riding a bike is very Helpful keeps you fit and helps the environment.





Less fossil fuels
If you say no to public transport or a bike then go to ELECTRIC cars They are so much more friendlier to the environment and don't give of carbon dioxide.






 
STOP deforestation
If we could stop it it would be amazing but if you cut one down plant another 3 there for every 1 you cut down you grow 3 more.






  

Recycle
Recycling is very important so we don't set harmful gases into the air also we don't have to chop down more materials to make new things.
 









These are some ways of keeping our planet happy and I hope you get the point of how it is changing and will change over the years. Thank you for your time.