The European Space Agency (ESA) have officially approved two space missions, LISA and EnVision, for launch in the 2030’s. LISA will search for gravitational waves whilst EnVision will study the interior and atmosphere of Venus. Both missions have contributions from NASA. The process of being formally `adopted’ by ESA can Read more…
Author Name: Thomas Howarth What you’ll discover in this blog post: What may happen if a star wanders too close to the Solar System How astronomers look for these incoming stars How astronomers of the Armagh Observatory and Planetarium used the ESO’s VLT to rule out one such close encounter Read more…
The answer is possibly, after an international team of astronomers announced the discovery of a rare molecule, phosphine, in the clouds of Venus. Phosphine, which is a molecule made up of one phosphorus atom and three hydrogen atoms, is a gas only made industrially on Earth or by microbes that thrive Read more…
26th June is Kids in Museums ‘Digital Takeover Day’. Here at the Armagh Observatory and Planetarium we wanted to give our young followers a chance to be published in our blog. Read all about their favourite planets below. Thank you to everyone who entered! Mars My favourite planet is Mars Read more…
This week our 5 Facts series continues with our home planet! Read on to learn more about our Earth. Earth is the only planet not named after a God The other planets in our Solar System are named after Roman and Greek Gods, but not our Earth! The word “Earth” Read more…
Kicking off our 5 Facts series we have the littlest member of our planetary family! Mercury is the smallest planet Pluto used to be the smallest planet in our solar system but since it was ‘demoted’ to a dwarf planet, Mercury then won the prize for being the smallest planet Read more…
Our view of the cosmos is biased by the vista that is apparent to our eyes. This is what the view in what we call the optically visible portion of the spectrum. To the unaided eye it is a view of a universe full of stars, together with five planets, one Moon and of course the Sun. When augmented with a telescope, our eyes can then see a universe full of galaxies – giant cities of stars.
Have you ever been worried about the impact of an asteroid wiping out human life? Well, I have some disturbing news for you: there is another possibility involving the explosion of a massive star that gives rise to a gamma-ray burst (called by astronomers simply a GRB), when the star ends its life producing a black hole.
Astronomers now know many hundreds of planets orbiting other stars in our Galaxy. These show an incredible amount of diversity in their basic properties such as size and temperature with no two planets being quite the same. But the Earth is still unique among planets within or outside our solar system in its ability to support life
Space is always changing. New things are discovered frequently, and the latest discovery was made inside our own solar system. Jupiter, the largest planet in our solar system, now has a staggering 79 moons in its orbit. Compare this to Earth’s lonely, singular moon and this shows you just how monstrous the gas giant planet is in size.
Article by: Holly Preece, PhD student at the Armagh Observatory and Planetarium NASA’s Hubble space telescope was launched on 24th April 1990. It was the first optical space telescope to be launched into orbit and has been one of the most productive scientific instruments ever built. It orbits the Earth Read more…
Comets are small icy and rocky objects flying around our Solar System on elliptical orbits, as opposed to near-circular ones the planets are enjoying. They are strange and fantastic enough as it is: bright comets with their tails spanning across the sky have been marvelled at, recorded, and often feared Read more…
The 2018 Robinson Lecture will be given by Professor Louise Harra of University College London. Her topic is about the Solar Orbiter, a new spacecraft to be launched to study the Sun. It will be held in the Archbishop’s Palace in Armagh on Wednesday 22 November, 2017, starting at 7pm. Read more…
The Sun is a constant presence in everyday life from rising in the morning signifying the beginning of the day, to setting at night representing the time to rest. With the human race ever more dependent on technology it is important to monitor solar activity and the potential harm it Read more…
Named after a famed 17th Century Italian-French astronomer the Cassini spacecraft took 10 years to reach a distant location in the Solar System, that of Saturn and its surrounding neighbourhood. Since its arrival in 2004 it has made a number of remarkable discoveries during its exploratory mission. The Cassini Read more…
Get your sunglasses on, and break out the sun tan lotion! July is here and we’re glad to see it. Summer is fully upon us and many of us will be on our summer holidays this month. The month of July was named after Julius Caesar by the Roman senate, Read more…
As a species we human beings are rather obsessed with the end of our world and how that is going to happen. From zombie apocalypses to giant asteroids hitting the Earth, we’ve pretty much thought of everything. However there is a new idea in town, and it makes giant asteroids Read more…
Newly discovered small Solar System body V774104 may seem just another tiny, cold and remote world beyond Neptune but this is an important finding as its mere existence suggests that the wastes of the outer Solar System are considerably more populous than we thought a couple of decades ago. Read more…
New Horizon’s arrival at Pluto this year, after a nine year-long traverse through the Solar System has revealed many new things about this little icy planet. Pluto used to be the ninth planet but was demoted in 2006 to the status of dwarf planet. Until the New Horizons mission started Read more…
It is widely accepted that our Solar System was created about 4.6 billion years ago based on dating of meteorites. Scientists believe the Solar System formed when a cloud of dust was disrupted by the shockwave from the explosive death of a nearby star initiating its collapse into a stellar Read more…
The ancient Chinese thought they were stars inside a solar orb. The Aztecs thought their Sun god had pockmarks on his face. A Renaissance astronomer thought they were undiscovered planets. Some believe they are the cause of climate change or the reason for loss of signal or a “static” on Read more…
When Percival Lowell began the search for “Planet X” little did he know the countless arguments he would cause and effectively how these would lead to a seemingly ever changing solar system. “Planet X” was not the believed birthplace of the X-Men for anyone hoping for the possibility of super Read more…
One of the latest members of the Solar System to be discovered, 2012 VP113 is a tiny isolated world in the outer Solar System. It’s attracting attention as it could one day help lead astronomers to discover a whole new planet. Flying outward from the Sun, away from the Read more…
November 9 is Carl Sagan Day when enthusiasts of astronomy and science remember and celebrate the life and works of Carl Sagan. Why is Sagan honoured in this way? Let us look back at the man and his career. It seems impossible to research the Solar System and Read more…
A rare astronomical event due to occur in the late 1970s inspired the desire to send a spacecraft to the most distant planets in our Solar System and beyond. That decision almost 40 years later has meant humans have created and launched a spacecraft which has travelled to the boundary Read more…
What does the word “Ring” conjure up in your head? Maybe you think wedding ring, boxing ring, Ring Ring, the ABBA song, or perhaps even battered onion rings…. Mmmm that has got me feeling hungry! For me it has connotations with a planet that is visible in the night sky Read more…
It’s the end of the world as we know it….or maybe not. Predictions of the end of the world have often been made throughout history. However, few have captured the attention of so many such as the 2012 end of the world saga; brought to the forefront of consciousness by Read more…
Sir Frederick William Herschel is one of the most well-known and highly regarded historical astronomers but many may not know or realise there was more to his genius than his passion for astronomy. So it seems a closer look is required to try and map out the life of such Read more…
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! Just to clear, we’re putting things into perspective by compressing the Universe’s whole 13.75 billion years since the Big Bang Read more…
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…
The aurora is a stunning celestial event associated with Earth’s polar regions. Recently Ireland has been witness to this beautiful phenomenon. If you are standing looking up at the sky in Canada, Alaska or in Norway on a clear dark night you may see a bright reddish or greenish Read more…
What exciting space events has 2012 in store for us? What important space anniversaries are coming up this year? Welcome to our annual guide to what the Universe has waiting ahead! This year marks twenty years since the first extra-solar planets were discovered when a pair of planets were Read more…
Helene is a tiny moon of Saturn that shares an orbit with the much larger moon Dione. Helene reposes at a gravitationally stable position called a Lagrange point. Helene orbits Saturn ahead of Dione, and viewed from above the centres of Dione, Saturn and Helene form a vast equilateral triangle. Read more…
October marks the peak of Autumn, leaves are falling from the trees, the evenings are darkening and Halloween and Christmas are just around the corner. With dusk falling earlier in the evening, this gives ample opportunity for stargazing without having to stay up too late. This month there are lots Read more…
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…
The belief that mankind is unique in our universe has not been proven otherwise. So what if one day we discover we as humans are not one of a kind, and not only is there maybe other life out there, but it is a world with life identical to our Read more…
202 million km (1.35 AU or 125 million miles) from Earth an explorer from Earth is investigating the giant asteroid Vesta. This intrepid pioneer is the Dawn space probe. Orbiting about 2700 km (1700 miles) above Vesta, Dawn slowly rotates around the world beneath it. Every 69 hours, the Read more…
September features yet another delightful selection of astronomical treats. Whether you are a veteran explorer of the night sky or new to star gazing, the heavens are full of wonders! Jupiter, king of the planets, is gracing the celestial stage this month from dusk till dawn. It is well worth Read more…
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…
“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…
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…
The approaching Comet Elenin has triggered suspicious and fearful speculation among some observers. A contribution to this brouhaha has been the lack of images of this visitor from deep space, but at last there are images from a NASA space observatory of this oncoming comet. On 1 August 2011 Comet Read more…
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…
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…
The peak at the centre of Tycho Crater on our Moon has been imaged by the Lunar Reconnaissance Orbiter spacecraft. Let’s take a look at this spectacular mountain of the Moon. One of the best-known lunar craters, Tycho is not especially large at some 85 km across. However it is Read more…
Ice Worlds, one of Armagh Planetarium’s Digital Theatre shows for Summer 2011, is a thrilling tour through space and time showcasing some of the most beautiful and chilly regions of the Solar System. What can audiences expect from this spectacular experience? Ice is everywhere. Of the worlds in our Solar Read more…
NASA’s Dawn spaceprobe is approaching the asteroid Vesta. At a distance of 483 000 km, the spacecraft has made images rivalling the best Hubble Space Telescope views of this fascinating little world. Between Mars and Jupiter lies the Asteroid Belt. Relics of the Solar Nebula which birthed the planets, these Read more…
Comet Elenin is coming!We’re doomed!That is if you believe everything you see on the internet.Comet Elenin’s approach has been all but ignored by the mainstream media, and into this vacuum a host of bloggers and online videos have poured rumours and prophesies of death and destruction.Here are the facts about Read more…
The Zodiacal light is a rarely seen yet intriguing spectacle in a dark sky. Sinead McNicholl reveals the connection between the zodial light and a famous rockstar! Have you ever noticed a whitish glow in the night sky which appears to extend upwards in the shape of a triangle or Read more…
NASA’s next manned spacecraft will be the Orion, a capsule which will be carried into space by a rocket. Weighing 25 tonnes, each Orion will carry up to six people. Accommodation on board is cosy at best, cramped at worst. Orion was intended to take astronauts to the Moon and Read more…
I’d like to tell you that I’m on the surface of an asteroid called Itokawa. I travelled there on a Japanese Aerospace Exploration Agency mission called Hayabusa and was left behind. Yes, I’m there, millions of miles away, among the rocks on Itokawa, right now as I’m typing this.You must Read more…
We all know how the Sun, our Earth and the rest of the Solar System condensed out of a vast protoplanetary disc some 4.5 billion years ago. There were some early mishaps such as the collisions which birthed the Moon, toppled Uranus and gave Mars its present north-south divide. Also Read more…
Venus was once thought to be a lush, life-bearing planet, but modern research has revealed an utterly lethal world. What perils await explorers of “Earth’s evil twin”? Is there anyone who hasn’t admired the lovely beacon of Venus hanging bright in a cerulean sky? (So bright in fact, it Read more…
Saturn: the Blue Planet? The NASA/ESA Hubble Space Telescope reveals the secrets of the giant planet. This false colour image from the Hubble Space Telescope not only shows Saturn in an unfamiliar light, but displays some of the giant planet’s features. The image was created in early 2009, when Saturn Read more…