Scientists have observed what they believe to be among the brightest explosions in the universe caused by the death of a star.
The collapsing star allowed them to observe the longest period of "gamma-ray afterglow" – an enormous radiation burst that is produced after a large star's core collapses and creates a black hole.
An artist's impression of the event portrays an epic burst of light shooting from the dying star.
We were really sitting in the front row when this gamma-ray burst happened
It is additionally believed to be one of the nearest gamma-ray bursts observed so far, with a distance of about one billion light years away.
That is considered by scientists to be in Earth's "cosmic backyard" as previous ones have usually been 20 billion light years away.
The High Energy Stereoscopic System telescopes recorded the event in 2019, with findings now published in the Science journal.
Scientists are now challenging the idea of how X-rays and gamma rays are produced in stellar explosions through these observations.
"We were really sitting in the front row when this gamma-ray burst happened," said Dr Andrew Taylor, co-author of the study at Germany's Deutsches Elektronen-Synchrotron research centre.
"We could observe the afterglow for several days and to unprecedented gamma-ray energies.”
Nasa's Fermi and Swift satellites first detected a gamma-ray burst in the constellation of Eridanus.
X-rays from the burst were also detected by the Swift satellite in Earth's orbit. The very-high-energy gamma rays entered the atmosphere and caused air showers that were observed by the high energy telescopes on the ground in Namibia.
The telescopes also caught the explosion’s afterglow when it became visible.
The gamma-ray burst’s energy was measured at 3.3 tera-electronvolts – about trillion times as energetic as the photons of visible light.
Edna Ruiz-Velasco, another co-author, said the observations were significant because the afterglow was present for three days.
“This is what's so exceptional about this gamma-ray burst - it happened in our cosmic backyard where the very-high-energy photons were not absorbed in collisions with background light on their way to Earth, as it happens over larger distances in the cosmos,” she said.
The observations have challenged previous theories that say X-ray and very-high energy gamma-ray emission are produced from separate mechanisms. Scientists have now discovered similarities between the two after studying this recent burst’s afterglow.
Dmitry Khangulyan, another co-author, said: "It is rather unexpected to observe such remarkably similar spectral and temporal characteristics in the X-ray and very-high energy gamma-ray energy bands, if the emission in these two energy ranges had different origins.”
The wonders of space - in pictures
Neil Thomson – THE BIO
Family: I am happily married to my wife Liz and we have two children together.
Favourite music: Rock music. I started at a young age due to my father’s influence. He played in an Indian rock band The Flintstones who were once asked by Apple Records to fly over to England to perform there.
Favourite book: I constantly find myself reading The Bible.
Favourite film: The Greatest Showman.
Favourite holiday destination: I love visiting Melbourne as I have family there and it’s a wonderful place. New York at Christmas is also magical.
Favourite food: I went to boarding school so I like any cuisine really.
The Perfect Couple
Starring: Nicole Kidman, Liev Schreiber, Jack Reynor
Creator: Jenna Lamia
Rating: 3/5
if you go
The flights
Air Astana flies direct from Dubai to Almaty from Dh2,440 per person return, and to Astana (via Almaty) from Dh2,930 return, both including taxes.
The hotels
Rooms at the Ritz-Carlton Almaty cost from Dh1,944 per night including taxes; and in Astana the new Ritz-Carlton Astana (www.marriott) costs from Dh1,325; alternatively, the new St Regis Astana costs from Dh1,458 per night including taxes.
When to visit
March-May and September-November
Visas
Citizens of many countries, including the UAE do not need a visa to enter Kazakhstan for up to 30 days. Contact the nearest Kazakhstan embassy or consulate.
SPEC%20SHEET%3A%20APPLE%20M3%20MACBOOK%20AIR%20(13%22)
%3Cp%3E%3Cstrong%3EProcessor%3A%3C%2Fstrong%3E%20Apple%20M3%2C%208-core%20CPU%2C%20up%20to%2010-core%20CPU%2C%2016-core%20Neural%20Engine%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EDisplay%3A%3C%2Fstrong%3E%2013.6-inch%20Liquid%20Retina%2C%202560%20x%201664%2C%20224ppi%2C%20500%20nits%2C%20True%20Tone%2C%20wide%20colour%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMemory%3A%3C%2Fstrong%3E%208%2F16%2F24GB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStorage%3A%3C%2Fstrong%3E%20256%2F512GB%20%2F%201%2F2TB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EI%2FO%3A%3C%2Fstrong%3E%20Thunderbolt%203%2FUSB-4%20(2)%2C%203.5mm%20audio%2C%20Touch%20ID%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EConnectivity%3A%3C%2Fstrong%3E%20Wi-Fi%206E%2C%20Bluetooth%205.3%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBattery%3A%3C%2Fstrong%3E%2052.6Wh%20lithium-polymer%2C%20up%20to%2018%20hours%2C%20MagSafe%20charging%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECamera%3A%3C%2Fstrong%3E%201080p%20FaceTime%20HD%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EVideo%3A%3C%2Fstrong%3E%20Support%20for%20Apple%20ProRes%2C%20HDR%20with%20Dolby%20Vision%2C%20HDR10%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EAudio%3A%3C%2Fstrong%3E%204-speaker%20system%2C%20wide%20stereo%2C%20support%20for%20Dolby%20Atmos%2C%20Spatial%20Audio%20and%20dynamic%20head%20tracking%20(with%20AirPods)%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EColours%3A%3C%2Fstrong%3E%20Midnight%2C%20silver%2C%20space%20grey%2C%20starlight%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EIn%20the%20box%3A%3C%2Fstrong%3E%20MacBook%20Air%2C%2030W%2F35W%20dual-port%2F70w%20power%20adapter%2C%20USB-C-to-MagSafe%20cable%2C%202%20Apple%20stickers%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPrice%3A%3C%2Fstrong%3E%20From%20Dh4%2C599%3C%2Fp%3E%0A
RACE CARD
6.30pm: Al Maktoum Challenge Round-3 – Group 1 (PA) $65,000 (Dirt) 2,000m
7.05pm: Handicap (TB) $65,000 (Turf) 1,800m
7.40pm: Meydan Classic – Listed (TB) $88,000 (T) 1,600m
8.15pm: Nad Al Sheba Trophy – Group 3 (TB) $195,000 (T) 2,810m
8.50pm: Dubai Millennium Stakes – Group 3 (TB) $130,000 (T) 2,000m
9.25pm: Meydan Challenge – Listed Handicap (TB) $88,000 (T) 1,400m
The Voice of Hind Rajab
Starring: Saja Kilani, Clara Khoury, Motaz Malhees
Director: Kaouther Ben Hania
Rating: 4/5
If%20you%20go
%3Cp%3EThere%20are%20regular%20flights%20from%20Dubai%20to%20Kathmandu.%20Fares%20with%20Air%20Arabia%20and%20flydubai%20start%20at%20Dh1%2C265.%3Cbr%3EIn%20Kathmandu%2C%20rooms%20at%20the%20Oasis%20Kathmandu%20Hotel%20start%20at%20Dh195%20and%20Dh120%20at%20Hotel%20Ganesh%20Himal.%3Cbr%3EThird%20Rock%20Adventures%20offers%20professionally%20run%20group%20and%20individual%20treks%20and%20tours%20using%20highly%20experienced%20guides%20throughout%20Nepal%2C%20Bhutan%20and%20other%20parts%20of%20the%20Himalayas.%3C%2Fp%3E%0A
The six points:
1. Ministers should be in the field, instead of always at conferences
2. Foreign diplomacy must be left to the Ministry of Foreign Affairs and International Co-operation
3. Emiratisation is a top priority that will have a renewed push behind it
4. The UAE's economy must continue to thrive and grow
5. Complaints from the public must be addressed, not avoided
6. Have hope for the future, what is yet to come is bigger and better than before
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Dresos%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%20September%202020%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Vladimir%20Radojevic%20and%20Aleksandar%20Jankovic%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%2C%20UAE%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EIndustry%3A%3C%2Fstrong%3E%20Fashion%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EFunding%3A%3C%2Fstrong%3E%20%24285%2C000%3B%20%24500%2C000%20currently%20being%20raised%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Crowdfunding%2C%20family%2C%20friends%20and%20self-funding%3C%2Fp%3E%0A
NYBL PROFILE
Company name: Nybl
Date started: November 2018
Founder: Noor Alnahhas, Michael LeTan, Hafsa Yazdni, Sufyaan Abdul Haseeb, Waleed Rifaat, Mohammed Shono
Based: Dubai, UAE
Sector: Software Technology / Artificial Intelligence
Initial investment: $500,000
Funding round: Series B (raising $5m)
Partners/Incubators: Dubai Future Accelerators Cohort 4, Dubai Future Accelerators Cohort 6, AI Venture Labs Cohort 1, Microsoft Scale-up
Going grey? A stylist's advice
If you’re going to go grey, a great style, well-cared for hair (in a sleek, classy style, like a bob), and a young spirit and attitude go a long way, says Maria Dowling, founder of the Maria Dowling Salon in Dubai.
It’s easier to go grey from a lighter colour, so you may want to do that first. And this is the time to try a shorter style, she advises. Then a stylist can introduce highlights, start lightening up the roots, and let it fade out. Once it’s entirely grey, a purple shampoo will prevent yellowing.
“Get professional help – there’s no other way to go around it,” she says. “And don’t just let it grow out because that looks really bad. Put effort into it: properly condition, straighten, get regular trims, make sure it’s glossy.”
Match info
Uefa Nations League Group B:
England v Spain, Saturday, 11.45pm (UAE)
Pharaoh's curse
British aristocrat Lord Carnarvon, who funded the expedition to find the Tutankhamun tomb, died in a Cairo hotel four months after the crypt was opened.
He had been in poor health for many years after a car crash, and a mosquito bite made worse by a shaving cut led to blood poisoning and pneumonia.
Reports at the time said Lord Carnarvon suffered from “pain as the inflammation affected the nasal passages and eyes”.
Decades later, scientists contended he had died of aspergillosis after inhaling spores of the fungus aspergillus in the tomb, which can lie dormant for months. The fact several others who entered were also found dead withiin a short time led to the myth of the curse.