Welcome to Astronotes
Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. We hope you will come here to learn what is hot and exciting, profound or even weird from worlds beyond ours . So that's the introduction out of the way, now on with the Universe!
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Cosmology Archive
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![“How could the Universe we see around us be created by an explosion?” This is a question often asked by those puzzled by the scientific consensus, the standard model of […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/03/cmb-thumbnail-115x115.png "The Oldest Light in the Universe: Image of the Month")
The Oldest Light in the Universe: Image of the Month
Posted on March 25, 2013 | 2 Comments“How could the Universe we see around us be created by an explosion?” This is a question often asked by those puzzled by the scientific consensus, the standard model of […] -
![Ever had a frustrating morning and wished you could тАШHulk-outтАЩ or that some superhuman abilities were within your grasp even for the briefest of moments?With the psyche of superheroes very […]](http://www.armaghplanet.com/blog/wp-content/uploads/2012/09/IMAGE-of-cosmic-ray-tracks-115x115.jpg "100 Years of Cosmic Rays")
100 Years of Cosmic Rays
Posted on September 21, 2012 | 1 CommentEver had a frustrating morning and wished you could тАШHulk-outтАЩ or that some superhuman abilities were within your grasp even for the briefest of moments?With the psyche of superheroes very […] -
![The Universe is 13.75 billion years old.It is easy to say, but what does that mean in Earthly terms?Let’s squeeze the whole history of the Universe into a year! […]](http://www.armaghplanet.com/blog/wp-content/uploads/2012/01/Image-of-Big-Bang-115x115.jpg "Eternity in 365 days")
Eternity in 365 days
Posted on January 23, 2012 | 1 CommentThe Universe is 13.75 billion years old.It is easy to say, but what does that mean in Earthly terms?Let’s squeeze the whole history of the Universe into a year! […] -
![Our galaxy, the Milky Way, is just one of an enormous number of galaxies spread throughout a vast Universe, which is expanding.Everyone knows these facts now, but how do we […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/10/image-of-virgo-galaxies-115x115.jpg "Our Place in the Expanding Universe")
Our Place in the Expanding Universe
Posted on October 20, 2011 | 1 CommentOur galaxy, the Milky Way, is just one of an enormous number of galaxies spread throughout a vast Universe, which is expanding.Everyone knows these facts now, but how do we […] -
![A long, long time ago when the first stars and galaxies were forming, the Universe was filled with electrically neutral hydrogen. This thin soup of gas absorbed ultraviolet light and […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/10/Image-of-early-galaxies-115x115.jpg "Light from the End of the Dark Ages")
Light from the End of the Dark Ages
Posted on October 13, 2011 | 2 CommentsA long, long time ago when the first stars and galaxies were forming, the Universe was filled with electrically neutral hydrogen. This thin soup of gas absorbed ultraviolet light and […] -
![In more than twenty years of hard work, the Hubble Space Telescope (HST) has made both beautiful images and profound discoveries, sometimes doing both at the same time. What are […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/09/image-of-2009-Hubble-Ultra-Deep-Field-115x115.jpg "As Far as Our Eyes Can See")
As Far as Our Eyes Can See
Posted on September 29, 2011 | 1 CommentIn more than twenty years of hard work, the Hubble Space Telescope (HST) has made both beautiful images and profound discoveries, sometimes doing both at the same time. What are […] -
![Neutrinos travel faster than light! The science world is agog at this unexpected announcement from CERN€а in Switzerland. This result has to be verified, for if true it seems that […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/09/Image-of-sn1987a_-115x115.jpg "Are Neutrinos Faster Than Light?")
Are Neutrinos Faster Than Light?
Posted on September 26, 2011 | 12 CommentsNeutrinos travel faster than light! The science world is agog at this unexpected announcement from CERN€а in Switzerland. This result has to be verified, for if true it seems that […] -
![Time is among the most mysterious of fundamental quantities. Time was originally defined and quantified through astronomy, and today astronomers are used to glibly talking of vast stretches of time. […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/05/image-of-Tarantula-nebula-115x115.jpg "Timespace: The Who, What and When")
Timespace: The Who, What and When
Posted on May 27, 2011 | 1 CommentTime is among the most mysterious of fundamental quantities. Time was originally defined and quantified through astronomy, and today astronomers are used to glibly talking of vast stretches of time. […] -
![Galaxies, distant from us in space and time, have been in the news recently. Astronomers knew that far away galaxies (and hence ancient galaxies)were smaller than those galaxies closer (in […]](http://www.armaghplanet.com/blog/wp-content/uploads/2010/10/image-of-early-galaxy-115x115.jpg "Another galaxy, far, far away seen by HST and ESO")
Another galaxy, far, far away seen by HST and ESO
Posted on October 21, 2010 | No CommentsGalaxies, distant from us in space and time, have been in the news recently. Astronomers knew that far away galaxies (and hence ancient galaxies)were smaller than those galaxies closer (in […] -
![In, say 1975, there was only one kind of ‘stuff’ in the Universe, matter made of protons and neutrons. By 1985 there was a consensus that this was not enough, […]](http://www.armaghplanet.com/blog/wp-content/uploads/2010/10/image-of-gravitational-lens-115x115.jpg "Dark matter and dark energy: the deepest mysteries in astronomy")
Dark matter and dark energy: the deepest mysteries in astronomy
Posted on October 1, 2010 | 2 CommentsIn, say 1975, there was only one kind of ‘stuff’ in the Universe, matter made of protons and neutrons. By 1985 there was a consensus that this was not enough, […]