The largest solar flare in four years hit Earth’s atmosphere on Saturday, causing radio blackouts over the Atlantic Ocean and surrounding coastal areas.
Huge blasts of X-rays from the Sun travelled at the speed of light towards Earth after a newly formed sunspot – a dark blotch on the Sun strongly indicative of a solar explosion – exploded, only eight minutes after formation.
The largest in four years, it was classified as an X-flare, the brightest and strongest type of solar flare.
Known to be the largest explosions in the solar system, solar flares send out electromagnetic radiation that can damage satellites and cause power cuts.
“Yesterday, sunspot AR2838 burst through the surface of the Sun and promptly unleashed the strongest solar flare in four years,” Spaceweather.com reported.
“A pulse of X-rays ionised the top of Earth’s atmosphere, causing a short-wave radio blackout over the Atlantic Ocean. Mariners, aviators and amateur radio operators may have noticed unusual propagation effects below 30 megahertz just after 14.29 UT,” or 6.29pm, UAE time.
A solar flare is caused when built-up magnetic energy in the solar atmosphere is released.
There are three categories – C are small, M are medium and X are huge. The higher the number, the greater the intensity.
For instance, the one that hit Earth on Saturday was classified as an X.15-class solar flare.
The largest flare ever recorded was the X28-class in 2003, when a series of large solar storms formed above the Sun’s surface. Engineers had to switch some satellites to “safe mode” and astronauts aboard the International Space Station were asked to seek shelter from radiation.
The events were known as the “Halloween Storms” because they occurred in the autumn.
Increased solar activity is an indication that the new solar cycle, Solar Cycle 25, is reaching its height, meaning more sunspots and eruptions could be expected.
In November, a medium-sized solar flare narrowly missed Earth, but scientists had said the risk had not gone away. It also caused radio blackouts in the South Atlantic, despite not erupting in the direction of the Earth.
“We can measure the number of sunspots, but you can’t really predict solar eruptions – they can happen any time,” Dr Ilias Fernini, deputy general director for research laboratories and observatory at the Sharjah Academy, previously told The National.
“Everything is digital these days and if we lose any satellite or internet connection, we’d be in big trouble. That’s why we have to predict these activities, but anything could happen.”
Stunning images of space - in pictures
WHAT IS A BLACK HOLE?
1. Black holes are objects whose gravity is so strong not even light can escape their pull
2. They can be created when massive stars collapse under their own weight
3. Large black holes can also be formed when smaller ones collide and merge
4. The biggest black holes lurk at the centre of many galaxies, including our own
5. Astronomers believe that when the universe was very young, black holes affected how galaxies formed
UAE currency: the story behind the money in your pockets
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UAE currency: the story behind the money in your pockets
The winners
Fiction
- ‘Amreekiya’ by Lena Mahmoud
- ‘As Good As True’ by Cheryl Reid
The Evelyn Shakir Non-Fiction Award
- ‘Syrian and Lebanese Patricios in Sao Paulo’ by Oswaldo Truzzi; translated by Ramon J Stern
- ‘The Sound of Listening’ by Philip Metres
The George Ellenbogen Poetry Award
- ‘Footnotes in the Order of Disappearance’ by Fady Joudah
Children/Young Adult
- ‘I’ve Loved You Since Forever’ by Hoda Kotb
Wicked: For Good
Director: Jon M Chu
Starring: Ariana Grande, Cynthia Erivo, Jonathan Bailey, Jeff Goldblum, Michelle Yeoh, Ethan Slater
Rating: 4/5
BUNDESLIGA FIXTURES
Friday (All UAE kick-off times)
Borussia Dortmund v Eintracht Frankfurt (11.30pm)
Saturday
Union Berlin v Bayer Leverkusen (6.30pm)
FA Augsburg v SC Freiburg (6.30pm)
RB Leipzig v Werder Bremen (6.30pm)
SC Paderborn v Hertha Berlin (6.30pm)
Hoffenheim v Wolfsburg (6.30pm)
Fortuna Dusseldorf v Borussia Monchengladbach (9.30pm)
Sunday
Cologne v Bayern Munich (6.30pm)
Mainz v FC Schalke (9pm)
Overview
What: The Arab Women’s Sports Tournament is a biennial multisport event exclusively for Arab women athletes.
When: From Sunday, February 2, to Wednesday, February 12.
Where: At 13 different centres across Sharjah.
Disciplines: Athletics, archery, basketball, fencing, Karate, table tennis, shooting (rifle and pistol), show jumping and volleyball.
Participating countries: Algeria, Bahrain, Comoros, Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Morocco, Oman, Palestine, Saudi Arabia, Sudan, Syria, Tunisia, Qatar and UAE.
Arabian Gulf League fixtures:
Friday:
- Emirates v Hatta, 5.15pm
- Al Wahda v Al Dhafra, 5.25pm
- Al Ain v Shabab Al Ahli Dubai, 8.15pm
Saturday:
- Dibba v Ajman, 5.15pm
- Sharjah v Al Wasl, 5.20pm
- Al Jazira v Al Nasr, 8.15pm
UAE v Gibraltar
What: International friendly
When: 7pm kick off
Where: Rugby Park, Dubai Sports City
Admission: Free
Online: The match will be broadcast live on Dubai Exiles’ Facebook page
UAE squad: Lucas Waddington (Dubai Exiles), Gio Fourie (Exiles), Craig Nutt (Abu Dhabi Harlequins), Phil Brady (Harlequins), Daniel Perry (Dubai Hurricanes), Esekaia Dranibota (Harlequins), Matt Mills (Exiles), Jaen Botes (Exiles), Kristian Stinson (Exiles), Murray Reason (Abu Dhabi Saracens), Dave Knight (Hurricanes), Ross Samson (Jebel Ali Dragons), DuRandt Gerber (Exiles), Saki Naisau (Dragons), Andrew Powell (Hurricanes), Emosi Vacanau (Harlequins), Niko Volavola (Dragons), Matt Richards (Dragons), Luke Stevenson (Harlequins), Josh Ives (Dubai Sports City Eagles), Sean Stevens (Saracens), Thinus Steyn (Exiles)
