All parts of the UK have been witnessing a partial solar eclipse, which started at about 08:18 GMT in southern England and peaked at around 09:36
The Faroe Islands and Svalbard in the Arctic Circle were the only places to experience a total eclipse
The amount of the sun's disc which is obscured varied from 96% in northern Scotland to 83% in southern England
How are you planning to watch the eclipse? Are you having an eclipse party? Or have you travelled far afield to get the best view? Let us know!
You can email haveyoursay@bbc.co.uk with your experience. Please include a telephone number if you are willing to be contacted by a BBC journalist.
Image source, APThese enthusiasts are ready and waiting for a total eclipse in Torshavn, the capital city of the Faroe Islands.
Dr Lucie Green, solar scientist at Mullard Space Science Laboratory, UCL says:
'Scientists will be investigating why the Sun's atmosphere is so hot. The energy source is known to come from the magnetic field in the atmosphere, but the exact details are still being unravelled.'
Dr Huw Morgan, physicist at Aberystwyth University, says:
'We will have many sets of custom-built telescopes all focused on the eclipse, all collecting light at different wavelengths - giving additional information on conditions in the mysterious solar corona.'
Prof Richard Harrison, MBE, Head of Space Science at Rutherford Appleton Laboratory says:
'Space-based instruments provide wonderful views of the Sun, and we are learning much about how our star works and how it influences us. But there is still much you can do from the ground… during an eclipse you can use large instruments in a way that you cannot from space.'
A reminder - as if you need it - not to take a selfie with the eclipse. You can seriously damage the back of your eyes if you look at the sun directly through your smartphone.
You You Xue in Leicester emails: I've just travelled from Canterbury to Leicester to avoid the clouds and catch the eclipse. I'll be attempting to photograph the eclipse from a park near the space centre.
And here it is! The first contact has been made in parts of the UK, as this image taken with a special camera in Newlyn, Cornwall, shows.
How much of the eclipse is likely to be visible from where you are? This map should help:
So how can you see the eclipse safely? BBC iWonder has everything you need to know here.
One of the first to see the eclipse, all being well, should be BBC reporter John Maguire who is in Newlyn, Cornwall. He tweets, external: "I know I know there's cloud - but the sun is brightening - the camera filters are on!!"
A partial eclipse has begun in the south of the UK. People in Cornwall are "first contact" - this is the very first moment the Moon begins to pass in front of the Sun.
Is it worth stopping to watch a solar eclipse, even if it's not total? We ask Kevin Kilburn from the Manchester Astronomical Society:
'Any eclipse is worth seeing and a 90% partial will be an unforgettable sight.
'I'm very much looking forward to this eclipse, the longest in the UK since 1999. Nearly a generation has passed since then and it's a timely reminder that eclipses have been important events in our history.'
BBC correspondent Ben Ando tweets, external: "In my practical and stylish eclipse goggles we are at Leicester where it's clear and currently cloud free!!"
While relatively few people are lucky enough to get the chance of seeing a total eclipse, a partial eclipse will be visible in many countries today, as this image shows.
Solar scientist Dr Lucie Green emails:
'If you are able to see a total eclipse look for the shapes in the pearly glow of the corona, these are being created by the Sun's magnetic field. If you are watching a partial eclipse watch how the shape and size of the crescent Sun change over time.'
Watch the total eclipse at 09:00 using the "live coverage" tab above.
Interactive: Click to reveal the eclipse key moments
Image source, BBC Stargazing Flickr John Dinning in Leeds emails: Working away in Leeds today, I have my camera equipment ready, although it's half cloudy now but there's still time for clear skies... I have a good position for the event.
The Sun's rays are so intense you can feel their warmth from 150m km away. So looking at the Sun directly, even for a few seconds, can seriously damage your eyes. It allows ultraviolet (UV) light to flood in and burn the light-sensitive cells - causing blurry vision and blind spots.
Watching an eclipse with normal sunglasses provides virtually no protection. But there are cheap and easy ways you can see an eclipse safely - such as making a pinhole viewer, building a projector using binoculars or wearing special eclipse glasses.
BBC science correspondent Pallab Ghosh is having slightly better luck, weather-wise.
He tweets, external: "Breaks in the clouds here @Jodrellbank to see #Eclipse2015."
We've got BBC correspondents out across the UK keeping their fingers crossed for a good view of the eclipse.
Carol Kirkwood is on the Isle of Lewis where it is currently looking a tad cloudy and rainy. She tells BBC Breakfast she might need windscreen wipers on her special eclipse-viewing glasses, if things don't improve.
But what everyone wants to know is: What will the weather be like? BBC Weather presenter Alex Deakin has the answers.
"There will be a lot of cloud across the UK at 9.30 [GMT] but Wales, south west England the Midlands and Lincolnshire are going to have the clearest weather. North east England and eastern Scotland should have some breaks in the cloud too.
"Elsewhere, it's looking unlikely - but there could be some small breaks. The cloudiest areas will be East Anglia, south east England, Northern Ireland and western Scotland."
Bristol and Cardiff are the major cities set to get the best show.
Astronomers understood what caused solar eclipses by about 20 BC. Before then, different civilisations came up with various stories to explain the Sun's disappearance:
Consumed: The Vikings blamed wolves for chasing and eating the Sun. In Vietnam it was devoured by a giant frog. In ancient China, a dragon was responsible.
Theft: Korean folklore tells of fire dogs that try to steal the Sun. The mythical beasts always fail to capture it, but they'd leave their bite marks in the Sun's disc during the eclipse.
Fight: Accordingly to the Batammaliba people of Western Africa, a solar eclipse was the result of a fight between the Sun and the Moon.