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Planets

Planets

Venus: Earth’s Sister Planet

Venus has always been regarded as Earth’s Sister Planet. After all, it can be the closest planet to us and it is nearly the same size as Earth. But how similar is it really to Earth?   Astronomers get asked this question very often:  “I saw this really bright light Read more…

By Armagh Observatory and Planetarium, 11 yearsJanuary 17, 2012 ago
Planets

Haumea: Rugby Ball Planet

Dwarf planet Haumea is one of the most bizarre small bodies of the outer Solar System. It has an oddly recent surface. Even just who discovered it is controversial. It looks kind of funny too. The 2011 Rugby World Cup is taking place in New Zealand at the moment and Read more…

By Armagh Observatory and Planetarium, 11 yearsSeptember 30, 2011 ago
Planets

Postcards from Mars

NASA’s Mars Reconnaissance Orbiter has returned thousands of fascinating images of our neighbouring world, here is a selection some of the most striking and thought-provoking (false colour) images. Part of the Martian surface that has cracked into a natural maze, Noctis Labyrinthus (the Labyrinth of Night), lies at the west Read more…

By Armagh Observatory and Planetarium, 12 yearsSeptember 9, 2011 ago
Planets

Image of the Month: You are here!

This portrait of the Earth and Moon together in space was taken on 26 August by NASA’s Juno spacecraft which is currently en route for Jupiter. The image was made when Juno was about 10 million km away as part of the checking procedure for the probe’s instruments. If you Read more…

By Armagh Observatory and Planetarium, 12 years ago
Image of Happy-Mars-Astronaut
Planets

The Truth about Life on Mars (Part 3)

“Is there life on Mars?” More than fifty years into the Space Age and there still is no definitive answer. Completing our series of posts on this mystery, we look at the latest ideas about the existence of beings on our neighbouring planet.   In the previous part of this Read more…

By Armagh Observatory and Planetarium, 12 yearsAugust 11, 2011 ago
Planets

Mars: Summer’s Salty Tears?

Could water be streaming down Martian mountainsides? This startling vision may be a reality according to recent results from NASA’s MRO spacecraft. Here is the latest on the waters of Mars. Although we are exploring the surface of Mars through marvellous rovers like Spirit and Opportunity and their forthcoming big Read more…

By Armagh Observatory and Planetarium, 12 yearsAugust 5, 2011 ago
Image of simulated Mercury transit
Planets

Vulcan: the Solar System’s Ghost Planet

We have been celebrating the first Neptunian year since the discovery of the eighth (and as far as we know last) planet in the Solar System. Neptune’s discovery was a famous triumph of nineteenth century astronomy. Less well-known is the aftermath, when a ninth solar planet was discovered. This planet Read more…

By Armagh Observatory and Planetarium, 12 yearsJuly 19, 2011 ago
Image of Triton and Neptune
Planets

Happy Birthday Neptune!

Neptune, furthest planet from the Sun is celebrating its first birthday. It has been known  to humans for only a single Neptunian year. Neptune, which is not visible with the naked eye, was discovered by mathematical prediction in 1846 before being observed through a telescope. Astronomers noticed that Uranus was Read more…

By Armagh Observatory and Planetarium, 12 yearsJuly 18, 2011 ago
Planets

The Truth about Life on Mars (part 2)

Scientists had seriously considered the possibility of plant or even animal life on the surface of Mars for more than a century. However negative results from NASA’s Viking spacecraft in the 1970s ruled out large-scale Martian life but this was not the end of the search for life on Mars. Read more…

By Armagh Observatory and Planetarium, 12 yearsMarch 18, 2011 ago
Planets

The Truth about Life on Mars (Part 1)

“Is there life on Mars?” This must be one of the most-asked questions in astronomy.  In this article I am going to look at the historical background to this question. Current thoughts on the possibilities of Martian life will be considered in a follow up article.   Why is life Read more…

By Armagh Observatory and Planetarium, 12 yearsMarch 11, 2011 ago

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RSS Intergalactic Craic
  • S3Ep2 - Wee Bitta Craic: Bout Ye Zuri?
    In the latest Wee Bitta Craic episode, Alice and Ethan ask Zuri all about how she came to be at Armagh Observatory and Planetarium doing her PhD. Find out more about Zuri's journey to get to where she is today, and laugh along as the guys have quality banter. If you love listening to our […]
  • S3Ep1 - Wee Bitta Craic: Welcome Ethan, Alice and Zuri!
    Want a Wee Bitta Craic? Then say hello to some of our PhD students, Ethan, Alice and Zuri. They will be hosting their own Wee Bitta Craic episodes and will give you an insight into the life of a PhD students here at AOP!
  • Season 3 - What's the craic?
    What's the Craic? Intergalactic Craic is back and it's shaking things up! Join Heather and her brand new co-host to find out more!
Welcome to Astronotes

Hello and welcome to Astronotes, the Armagh Observatory and Planetarium’s official blog. Here you will find the latest news and views from all those who work in our organisation, 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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