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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![Our Solar System is old. Our best estimates from radiometric dating of meteorites suggest the Sun and its planets (including Earth) were forming some 4.6 billion years ago. The Universe […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/08/image-of-oldest-star-115x115.jpg "The Star Older Than the Universe?")
The Star Older Than the Universe?
Posted on August 13, 2013 | 22 CommentsOur Solar System is old. Our best estimates from radiometric dating of meteorites suggest the Sun and its planets (including Earth) were forming some 4.6 billion years ago. The Universe […] -
![With only two planets in our solar system without moons (Mercury and Venus) our curiosity is a little spoilt for choice. Normally when people begin to search about for information […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/07/image-of-Ariel-115x115.jpg "The Mysterious Moons of Uranus")
The Mysterious Moons of Uranus
Posted on July 31, 2013 | 3 CommentsWith only two planets in our solar system without moons (Mercury and Venus) our curiosity is a little spoilt for choice. Normally when people begin to search about for information […] -
![Looking up in to the night sky itтАЩs not difficult to see why the ancient Greeks believed that all the stars in the night sky were fixed on a celestial […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/06/image-of-magellanic-clouds-115x115.jpg "How Far Away is the Farthest Star?")
How Far Away is the Farthest Star?
Posted on June 17, 2013 | 52 CommentsLooking up in to the night sky itтАЩs not difficult to see why the ancient Greeks believed that all the stars in the night sky were fixed on a celestial […] -
![Comet ISON may be the greatest comet of this century as it skims through the atmosphere of the Sun this autumn.€а The Hubble Space Telescope has just the best image […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/04/image-of-ison-from-hubble-115x115.jpg "Comet ISON Puts on a Show for Hubble: Image of the Month")
Comet ISON Puts on a Show for Hubble: Image of the Month
Posted on April 25, 2013 | No CommentsComet ISON may be the greatest comet of this century as it skims through the atmosphere of the Sun this autumn.€а The Hubble Space Telescope has just the best image […] -
![Have you ever wished you could hop into a time machine, zip back billions of years and answer one of the age old questions that have plagued mankind from the […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/04/Image-of-ALMA_array_on_Chajnantor-115x115.jpg "ALMA: Everything You Need to Know About Europe’s Giant Eye on the Sky")
ALMA: Everything You Need to Know About Europe’s Giant Eye on the Sky
Posted on April 12, 2013 | No CommentsHave you ever wished you could hop into a time machine, zip back billions of years and answer one of the age old questions that have plagued mankind from the […] -
![This year has started off with perhaps a little more promise than the last, not only did the world not end but a new Mayan calendar has started, mysterious planet […]](http://www.armaghplanet.com/blog/wp-content/uploads/2013/01/image-of-Comet-kohoutek-115x115.jpg "2013’s Space Odysseys")
2013’s Space Odysseys
Posted on January 8, 2013 | No CommentsThis year has started off with perhaps a little more promise than the last, not only did the world not end but a new Mayan calendar has started, mysterious planet […] -
![Our Image of the Month was released to celebrate the 22nd anniversary of the NASA/ESA Hubble Space Telescope and is a striking panoramic look at a stellar nursery which is […]](http://www.armaghplanet.com/blog/wp-content/uploads/2012/04/image-of-Hubble-panorama-of-Tarantula-nebula-115x115.jpg "Image of the Month: The Tarantula Nebula")
Image of the Month: The Tarantula Nebula
Posted on April 20, 2012 | No CommentsOur Image of the Month was released to celebrate the 22nd anniversary of the NASA/ESA Hubble Space Telescope and is a striking panoramic look at a stellar nursery which is […] -
![How big is the largest known star? Compared to planets, stars will always be the overall group winners in terms of superior size. When you look at the night sky […]](http://www.armaghplanet.com/blog/wp-content/uploads/2012/03/image-of-star-types-115x115.jpg "The Largest Stars in the Universe")
The Largest Stars in the Universe
Posted on March 14, 2012 | 23 CommentsHow big is the largest known star? Compared to planets, stars will always be the overall group winners in terms of superior size. When you look at the night sky […] -
![Here is possibly the only joke in all of astronomy. Two spiral galaxies walk into a pub. The first one goes up to the bar and asks for two drinks, […]](http://www.armaghplanet.com/blog/wp-content/uploads/2011/11/image-of-NGC-1672-115x115.jpg "NGC 1672 and the Only Joke in Astronomy")
NGC 1672 and the Only Joke in Astronomy
Posted on November 14, 2011 | 1 CommentHere is possibly the only joke in all of astronomy. Two spiral galaxies walk into a pub. The first one goes up to the bar and asks for two drinks, […] -
![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 […]