Millions of people across the UK and Europe on Wednesday witnessed the most significant solar eclipse since 1999. For most of the UK, more than 90 per cent of the Sun was covered by the Moon and  it was also visible across large parts of Europe â a rare total eclipse could be seen in Iceland and Spain.
The skies above Iceland fell âinto total darkness on Wednesday afternoon as a full solar eclipse occurred over the countryâs westernmost coast. A break in the clouds allowed holidaymakers and locals to âglimpse the celestial phenomenon.
Live footage from Reykjavik showed that, despite the overcast sky, a cheer went up from the crowd gathered in front of Hallgrimskirkja church when everything went black above them.
Millions of people have gathered in Iceland and northern Spain to witness Western Europeâs first total solar eclipse in 27 years, with Spanish officials warning people to avoid areas where a heatwave has raised the risk of wildfires.
Authorities were expecting up to 6 million visitors in mostly rural areas âwithin the eclipseâs path across the north of Spain and the Balearic Islands, said Juan Cruz, Spainâs Secretary of State for Science.
âI hope that tonight will see the emergence of âa wonderful generation of astrophysicists,â he said. âItâs such a special moment.â
The eclipse will be quickly followed by the sunset in Spain, making the event â particularly alluring.
The uncanny sensation when day briefly turns into twilight and some animals fall quiet as the moon passes directly between Earth and the sun, was âoften treated as an omen in the past, a cosmic struggle or a sign of divine power.
Now, Spain sees it as a chance to showcase seldom-visited regions and draw tourists away from its overcrowded âbeach resorts, while also rolling out a massive police operation and public safety campaign to prevent them from causing wildfires.
Interior Minister Fernando Grande-Marlaska told reporters 25,000 police officers had been assigned to guarantee security around the eclipse observation while nearly 100 planes and helicopters were also being deployed.
He called on citizens to follow the eclipse from the hundreds of observation points set up by authorities and abide by the restrictions set up around some parks.
âLetâs not âforget that the wildfire risk is very high, itâs extreme due to high temperatures,â he said.
Lola Guerreiro spent the night in the mountains near Arcos de las Salinas in eastern Spain, home âto Galactica â Europeâs largest educational astronomy centre â as well as the Javalambre observatory, after making the long drive from Extremadura to view the eclipse.
âWatching a total solar eclipse has been a dream of mine for many, âmany years, and â I didnât want to miss the chance to experience it, even though it meant a seven-hour journey,â she said.
Sergio, a 60-year-old Italian, had made the trek in a camping van with his family to Arija in northern Spain.
âI do feel a little emotional. Yes, because I know I wonât have another chance in my life to see an eclipse, a phenomenon like this,â he said.
The Iberian Peninsula last saw a total solar eclipse in 1912. It is set to experience another one on August 2, 2027, and an annular eclipse in January 2028, completing the so-called âIberian Eclipse Trio.â
In Icelandâs capital Reykjavik, âglasses to allow people to look at the â phenomenon without damaging their eyes have been sold out for days as the Nordic country of roughly 400,000 people expects to welcome up to 80,000 visitors.
Totality reached Icelandâs westernmost coast at about 5:44 p.m. (1744 GMT), casting the far west of the island nation into total darkness for up to â2 minutes and 13 seconds, though most cities saw shorter periods of darkness. The moonâs shadow has since continued its trajectory eastwards.
Authorities had âwarned of heavy traffic and â urged viewers to arrive early.
Singer Björk was due to perform a DJ set at an eclipse-themed event south of Reykjavik.
U.S. space agency NASA plans to fly a high-altitude WB-57 aircraft from Iceland to follow the moonâs shadow, and NASA-funded teams will launch balloons to study how the sudden darkness and cooling affect the lower atmosphere.
Aside from casual observers, the event also draws âeclipse chasersâ, enthusiasts who crisscross the globe to â be in the âpath of totality whenever an eclipse occurs.
Gordon Telepun, a retired plastic surgeon and amateur astronomer from the U.S. who âhas photographed six total eclipses, said he would watch from the island of Mallorca because Spain checked all the boxes for eclipse chasers.