Exhibitions and Events

Helios and a Partial Solar Eclipse

On Wednesday 12th  August 2026, people in Wales will be able to see a partial solar eclipse. This is where around 90% of the Sun will be covered by the Moon.  

This will be the closest to a total eclipse the UK has seen since 1999, and you'll have to wait until 2090 for the next total solar eclipse visible from Wales! 

At the same time, visitors to Amgueddfa Cymru: National Museum Cardiff will have the chance to explore Helios, a spectacular illuminated installation by artist Luke Jerram. Visitors will be able to experience both the Sun in partial eclipse and explore an up-close artistic interpretation.  

National Museum Cardiff will be opening late on the 12th August to celebrate the eclipse. To help you view it safely, we will be making eclipse viewers in the Clore Discovery Centre throughout the day out of cereal boxes. Why not bring along a cereal box and turn it into your own scientific instrument? Tickets to this event are free and can be booked from our website - Museum Lates: Solar Eclipse.

What is a solar eclipse?  

A solar eclipse occurs when the Earth, Moon and Sun align. The Moon passes in front of the Sun and blocks its light, casting a small shadow on Earth. As the shadow is quite small compared to the size of the Earth, only a few countries see the eclipse. 

Map of the August 12, 2026, Total Solar Eclipse

An eclipse’s ‘path of totality’ is a thick line (shown in red on the map of the globe) where viewers are fully in the Moon’s shadow. These people will see a total eclipse. 

On the 12 August, the path of totality falls over Greenland, Iceland and Spain. People in the UK, France, Belgium, Switzerland and northern Italy will see a partial eclipse, where a portion of the Sun (90%) is covered by the Moon. 

For Wales, it will be as close to a total eclipse as we’ve seen in 27 years! 

Historical eclipses in Wales 

Total solar eclipses are very rare in Wales but there are records of them. The last one was in June 1927, but the weather was bad with dark clouds and heavy rain.  

For the eclipse of 1836, Wales fared better. The following poetic report appeared in Y Seren Ogleddol (The Western Star) afterwards. The original inhabitants of the Rhyd y Car cottages and Cilewent Farmhouse at St Fagans National Museum of History would have witnessed this eclipse in much the same way as this writer. 

DIFFYG AR YR HAUL

Cymerodd y peth anarferol hwn le, Sabbath y 15 o Fai, yn union yn yr amser. Mewn rhai mannau yn y dywysogaeth, dywedir bod y brain yn mynd i'w coedwigoedd, yr adar yn mynd i'w nythod, a'r ystlum yn dangos ei hun; yr ieir yn chwilio am eu clwydau. Yr oedd natur wedi llawn prydferthwch, felpetai wedi ei daro â syndod a rhyfeddod; yr awyr yn oer a thywyll, fel pe bai rhywbeth annormal yn dod i'r ddaear; ac wedi i'r gwanwyn godi, dyma natur yn codi o farwolaeth i fyw, yr ystlumod yn dianc i'w tyllau, a'r adarbach yn canu'n hapus i'w Creawdwr, a phob peth yn edrych mor brydferth a dymunol a cynharach. 

SOLAR ECLIPSE

This unusual event took place on Sabbath, 15th May, exactly at that time. In some parts of the county, it is said that the crows went to their woods, the birds went to their nests, and the bats appeared; the hens went to roost. Nature that was full of beauty, appeared as if struck with wonder and amazement; the air was cold and dark, as if something abnormal was coming to the earth; and after the sun reappeared, nature arose from death to life, the bats escaped to their holes, and the little birds sang happily to their Creator, and everything looked as beautiful and pleasant as before.

What will happen on 12th August 2026?  

6.17pm (Cardiff): The Moon will first cover part of the disk of the Sun.  

The Moon will move slowly in front of the Sun until roughly 90% of the Sun is covered.  

7.12pm (Cardiff): The eclipse maximum, where enough of the Sun will be covered to make a noticeable difference in the temperature and light levels. The sky will not actually become dark.  

After the maximum, the Moon will slowly move off the Sun’s disk until only a small sliver remains. 

8.06pm (Cardiff): the eclipse ends. 

As this will happen as the Sun is setting, the Sun and Moon will become increasingly low on the horizon as the eclipse goes on. The best way to see the eclipse will be from a high point with a clear view of the western horizon. We can only cross our fingers for cloudless skies! 

Your view will also depend on where you are in Wales – Pembrokeshire will have the best views. There 94% of the Sun will be covered by the Moon.  

If you’re planning to view the eclipse on the 12th August, why not visit Helios for a close-up view of the Sun beforehand to discover what the Sun looks like up close?

Composite image of eclipse from NASA’s Johnson Space Center in Houston, 21st August 2017

Composite image of eclipse from NASA’s Johnson Space Center in Houston, 21st August 2017. NASA Image and Video Library.

How to view a solar eclipse  

You should never look directly at the Sun, even during an eclipse. Doing so can severely damage your eyes.  

We will be making eclipse viewers throughout the day on the 12th August so why not come along to make your own. 

You can safely watch the 12th August partial solar eclipse using:  

1. Eclipse glasses – Special eclipse glasses can block out the Sun’s harmful rays and enable you to look at the eclipse safely. Normal sunglasses are not safe to use! Make sure your eclipse glasses have safety certification ‘ISO 12312-2' printed on them. Don’t reuse any old eclipse glasses: they may not be safe. Even a microscopic scratch in the lenses could damage your eyesight.

Eclipse glasses

Eclipse Glasses, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

2. A solar telescope – Check with your local astronomical society to see if they’re running any eclipse-viewing events on 12 August. They may have a few telescopes fitted with special solar filters, which are safe to use to observe the Sun. you should never use normal telescopes or binoculars to look at the Sun.  

3. Make a pinhole projector – There are a few ways you can make a ‘pinhole projector’, which will allow you to see the eclipse by projecting the Sun’s light, and the bite being taken out of it, onto another surface. Try this one: Make your own pinhole camera | The Schools' Observatory. You can even use a kitchen colander to project an image of the eclipse safely on the ground!  

Diagram of a pinhole projector

Book your free tickets here - Museum Lates: Solar Eclipse

Helios by Luke Jerram

Sensory Toy Boxes at National Museum Cardiff

The Summer holiday period saw the launch of the new sensory toy boxes at National Museum Cardiff. There are 5 boxes which are inspired by our collections and galleries. The boxes were developed to engage younger visitors and enhance their museum visit through multi sensory play. The boxes are located in five of our galleries and correspond with the objects on display such as woodland wildlife, sealife, dinosaurs and historical and contemporary art.

The boxes include a varied selection of toys and books which are accessible for children of all ages and needs. In museum spaces where collections on display cannot be handled, sensory resources allow children to learn through play and can spark intergenerational conversations about our collections.  

Visitors to the museum are encouraged to find all 5 boxes and share any feedback and photographs with us on X at @Amgueddfa_Learn.

Contemporary art sensory toy box

The Roots of 'Unknown Wales': A Conference to Celebrate Welsh Wildlife

‘Unknown Wales’ is an exciting day of free public natural history talks held each autumn at National Museum Cardiff. It features top speakers from all over Wales, talking about their newest nature discoveries and projects. The talks are short and accessible, and often great fun!

First held in 2011, the bilingual event is a collaboration between Amgueddfa Cymru and the Wildlife Trust of South & West Wales. The conference is a popular highlight in our calendar, regularly attracting over 200 visitors in person and online. The Reardon Smith Lecture Theatre provides a impressive atmosphere in which to hear from people who work on the front line of natural history and nature conservation.

The event was initially created to meet two needs. The first was for a free public conference dedicated to the whole natural history of Wales. From the outset the intention was to cover Zoology, Botany, and Geology – three fundamental aspects of nature that aren’t always dealt with together. It aims to offer an event (and a platform) for everyone with an interest in natural history. The questions from the audience at the end of each talk give a flavour of the enthusiasm that’s out there, as well as the depth of each speakers’ knowledge! Held on a Saturday, the day is unusual in our events calendar in being aimed largely at adults (though anyone aged 12 and over can attend).

The second need was to emphasise that new discoveries are always being made, hence the name “Unknown Wales”. While the event always features famous Welsh nature reserves, familiar species, and well-worn conservation practices, we’ve always encouraged interest in frontiers. Many talks feature recent scientific discoveries (including those made at the Museum itself), or new approaches that are changing how people look at and live with Welsh nature. On occasion there has been controversy, as speakers grapple with the environmental issues and policies of the day. The variety of organisations and projects covered provide inspiration for those looking for career, study or volunteering opportunities in biodiversity.

In total over 80 speakers have helped build Unknown Wales into what it is, and to all of them we are most grateful. Particularly memorable talks include Tim Birkhead on birdsong evolution, Lynne Boddy on the diversity of fungi, Anne Bunker on Welsh seaweeds, and Derek Gow on beaver reintroduction (a situation that has changed drastically since 2011). TV celebrities Rhys Jones, Miranda Krestovnikoff, and Iolo Williams (twice!) have all taken part to lend their support to the initiative.

Subjects covered range from river pollution to heritage trees, caves, coal tips, dolphins, dinosaurs, and eDNA surveys. We have featured the latest updates on iconic species like Red Squirrels, Marsh Fritillaries, Natterjack Toads, and Manx Shearwaters. Plus, of course, the Glutinous Snail…an icon-in-waiting? Another good thing about covering the whole of Wales, including its more remote and quieter places, is that nearly everyone’s milltir sgwâr (square mile) has had a mention!

Several talks have come about through audience suggestions, helping the event evolve. We have sometimes toyed with the format, exhibiting specimens from the Museum collections, supplying goodie-bags, or holding a poster competition, book sale or quiz during the interval. The event moved online in the 2020 pandemic, before adopting the present hybrid event, which allows more people to take part.

Will there be more Unknown Wales to come? You bet! Welsh nature is always full of frontiers and mysteries, which move as times and techniques change. We look forward to the next event, and to many other opportunities to share these with other wildlife lovers.

Details for Unknown Wales 2023 are here.

Installing The Lost Words - Partnership in Action

In June of this year Ulrike Smalley, Aled Williams and I travelled to Trawsfynydd, Gwynedd, to assist in the installation of Geiriau Diflanedig -The Lost Words at Yr Ysgwrn. This shared exhibition is the result of a partnership between Amgueddfa Cymru, Pembrokeshire Coast National Park Authority and Awdurdod Parc Cenedlaethol Eryri. 

 

Celebrating the relationship between language and the natural world, and the spark of imagination that can spring from it, this display of works on paper together with a small number of items could not be better suited to its location. Yr Ysgwrn’s cultural centre, housing a gallery, café and learning space sits in the stunning landscape of Eryri. A converted stable, it is part of the farmstead that was the home of Ellis Humphrey Evans, better known by his bardic name, Hedd Wyn. 

Raised a farmer, Ellis was encouraged in his poetry writing by his parents.  He won his first bardic chair aged 20 and would win a further four before his death nine years later on the Western Front. He died never knowing that he had achieved his ambition of winning the chair at the National Eisteddfod. The beautifully carved oak chair was transported by train and then horse and cart to his childhood home, where it has remained on public display ever since. Hedd Wyn remains a symbol of that lost generation of men who went to war and never returned. His former home, however, has remained a place of discovery, education and sometimes pilgrimage for those wanting to know more about his life and of the things he held so dear.

Hedd Wyn was often inspired by the beauty of his natural surroundings. The images created by artist Jackie Morris in Geiriau Diflanedig -The Lost Words draw on much of that same beauty, celebrating its presence and lamenting its potential loss. Her watercolour and goldleaf paintings focus on objects and creatures from nature including the magpie, conker, otter and wren, and are truly beautiful. The artworks are accompanied by poems written by Robert MacFarlane and translated into Welsh by Mererid Hopwood. 

Before our team could begin installing Geiriau Diflanedig -The Lost Words, the original stone walls of the gallery were faced with painted MDF board to hang the 25 works. Aled and Ulli discussed and organized the layout while I condition checked the items. With some assistance from Naomi and Kevin at Yr Ysgwrn, the works and the accompanying poetry panels were positioned and hung, sealed open-top school desks laid out with objects from the natural world, overhead lights adjusted, mirror plates covered and painted, vinyls adhered, floors swept, glass polished, and giant wicker dragonflies suspended from the ceiling.

We repeated the process at Oriel Y Parc gallery and visitor centre in St Davids in Pembrokeshire, where the other half of the exhibition is installed with the addition of specimens from Amgueddfa Cymru’s natural history collections.

If you are heading to North or West Wales over the next 9 months, please take the time to visit these sites. You will not be disappointed.

March is for mulching

If you are visiting St. Fagans this month you will notice an army of gardeners and volunteers marching around the gardens with wheelbarrows full of organic matter to condition the soil of our beautiful gardens. As winter comes to an end, spring arrives with a promise of growth. This is a crucial moment in the gardening calendar to prepare for the warmer months ahead. 

Because of the over-emittance of greenhouse gases, the Earth’s surface temperature is increasing rapidly. We are noticing summer months that are hotter and drier than ever, only last year we witnessed temperatures around 40°C in some areas of the UK. The excessive heat and prolonged drought have devastating effects on our local flora and fauna. 

One of the most important tasks for this month is to mulch the soil by adding a layer of organic matter to the soil surface. Mulching brings numerous benefits to plants including moisture retention in periods of drought, weed suppression, improvement of soil structure and fertility, reducing the need for artificial fertilisers, prevention of soil erosion, and encouragement of beneficial organisms such as earthworms, soil bacteria and fungi. Additionally, it attracts wildlife to our gardens, one of my favourite memories is of being followed by Robins as we mulch the garden in spring. They patiently wait for a feast of earthworms, while gifting us with their beautiful bird song announcing the arrival of spring. 

There are many different types of mulching materials and each with their own benefits and uses. Most of our gardens are mulched with well-rotted farmyard manure sourced from Llwyn-yr-eos farm in St. Fagans and from a local farmer. The manure is gradually incorporated into the soil by the activity of earthworms and other microorganisms, which improves the soil structure and supplies the plants with nutrients. This nitrogen rich material is ideal to be used on herbaceous borders, vegetable beds, roses and newly planted trees and shrubs.

However not all plants like nutrient rich mulches, plants that are adapted to growing in hot and dry conditions often do not cope well with excessive moisture and high fertility. For example, in the Herb Garden where we have Mediterranean plants such as lavender, rosemary, sage and thyme we have opted for mulching the beds with gravel. This is an inorganic material that does not break down; therefore it does not release nutrients to the soil. In addition, gravel is great at promoting good drainage, suppressing weeds, and adding aesthetic value to the garden.  

This year we are trying new methods of mulching as a sustainable way to utilise the maximum of our local resources. We have started using raw wool provided by the Llwyn-yr-Eos farm to mulch the vines in the greenhouse. This will help with water conservation and prevention of weeds. Besides the wool fleece degrades slowly releasing nutrients into the soil and feeding the vines. Another advantage is that wool can help retain heat during colder months, keeping the root of the vines warm in winter. 

In March we cut back the ornamental grasses and perennials of the Dutch garden and a large amount of material usually ends up in the compost heap. This year we decided to skip this process and instead we added the dried grass clippings directly to the surface of the pumpkin patch. We have sprinkled a fine layer of manure on top to weigh down the grasses and prevent them from blowing in the wind. This will also aid the process of decomposition by introducing nitrogen to this carbon rich material.  While the farmers make hay for a rainy day, the gardeners mulch with hay for a hotter day.

When choosing mulches or growing mediums for your garden, prefer materials from sustainable and local sources in order reduce the carbon footprint from transportation. It is also important to avoid peat-based composts at all costs. The extraction of peat has a negative impact in the environment, it destroys the natural habitat of many species that live in peatlands, besides it releases tons of carbon dioxide into the atmosphere contributing to the greenhouse effect. 
For the home gardener the most sustainable and cost-effective option is to mulch using homemade compost or leaf mould. Why not try making your own compost using kitchen and garden waste? You will be surprised at the benefits you can reap from your compost heap.