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China’s FAST telescope discovers world’s first persistently active repeating fast radio burst
By Wu Yuehui, People’s Daily
An international research team led by Li Di, a researcher with the National Astronomical Observatories (NAO) under the Chinese Academy of Sciences, lately detected and localized FRB 20190520B, the world’s first and only persistently active repeating fast radio burst (FRB) so far, with the help of China’s Five-hundred-meter Aperture Spherical Radio Telescope (FAST), known as the “China Sky Eye”.
The discovery was made through the Commensal Radio Astronomy FAST Survey (CRAFTS), a novel and unprecedented commensal drift scan survey of the entire sky visible conducted with FAST.
The study was published in international academic journal Nature on June 9, 2022, Beijing time.
FRB is the brightest radio burst known in the universe, and can release within one millisecond as much energy as that radiated by the sun in about a whole year. Nearly 500 FRBs have been reported worldwide, among which less than 10 are active with frequent bursts in certain phase windows. No persistently active repeating FRB had been found until now.
As the world’s largest single-dish radio telescope, the “China Sky Eye” began searches for FRBs several years ago. On May 20, 2019, scientists detected a repeating FRB using FAST, which was later named FRB 20190520B.
When it was first detected, the FRB already showed signs of activity, according to Niu Chenhui, first author of the paper and a young scholar at the NAO.
“We detected three bursts within 10 seconds under one wave beam. Twenty seconds later, we detected one more burst when another wave beam swept it,” Niu recalled.
Based on the time of these four earliest bursts detected through the drift scan survey using the FAST and the pointing location from the telescope, researchers narrowed down the source of the bursts, providing more accurate and reliable information about the FRB’s location for follow-up study.
Later, through observations carried out using multiple pieces of international astronomical equipment and on the basis of data from interferometer arrays and optical telescope, researchers concluded that the host galaxy of FRB 20190520B is a dwarf galaxy with a redshift of 0.241 that is 3.3 billion light-years away from the Earth.
According to Li, the world’s first persistently active repeating FRB has shown features that are more distinct in many aspects than those of FRB 20121102A, the first repeating FRB found by humankind in 2016.
While FRB 20121102A was only active in certain periods, active and repeated bursts of the FRB 20190520B have never ceased, with several hundred bursts already detected by the “China Sky Eye”, Li pointed out.
Continuous observations using the FAST are expected to help create a brand new evolution roadmap of the FRBs, Li said.
The discovery of the world’s first persistently active repeating FRB has challenged traditional views about chromatic dispersion analysis of FRBs, and laid a foundation for modeling the evolution of FRBs and understanding this violent and mysterious phenomenon in the universe, Li added.
After they were published, the preliminary results of the study have attracted widespread attention from the international astronomical community. The important discovery has been followed by several articles on FRB modeling, with their topics covering FRB scattering timescale models, supernova explosion explanations, etc.
The CRAFTS has found at least six new FRBs, making unique contributions to uncovering the mechanisms of this mysterious phenomenon in the universe and advancing research in this new field of astronomy.
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TAU reaffirms commitment to globally competitive learning
- As 16 graduands make First Class
Stephen Olufemi Oni, Ilorin
The Thomas Adewumi University (TAU), Oko-Irese, in the Irepodun local government area of Kwara State, has reaffirmed its commitment to strengthening quality education, innovation, and globally competitive learning.

Speaking at the institution’s 2nd Convocation ceremony in Oko-Irese, the Vice Chancellor of the University, Professor Francisca Onaolapo Oladipo, said TAU is living up to its ranking as the fastest growing institution in Science, Technology, Engineering, Medicine, and Innovation (STEM-i) ecosystem by surpassing more than 100 percent in its number of graduating students at the second convocation.
She said: “TAU emerged on April 8, 2021, as Nigeria’s fastest-growing Science, Technology, Engineering, Medicine and Innovations (STEM-i) ecosystem. Today, we rank 1st among the 20 private universities that were licensed in
2021, 4th among the 14 Universities in Kwara State, 5th among Nigeria’s over 170 private Universities and 50th nationally, an impressive rise reflecting our unwavering commitment to excellence.
”What a Moment of Extraordinary Significance today, we stand at a crossroads far more significant than words can adequately capture. Exactly one year ago, we gathered at this very Auditorium to celebrate our inaugural Convocation, a ceremony that marked the graduation of 26 pioneering students who dared to believe in a vision when others saw only impossibility. Those 26 trailblazers proved that Thomas Adewumi University was not just a dream, but a reality rooted in excellence. Today, as we honour 63 outstanding graduates, we witness something far more profound than numerical growth.
“This 142% increase in our graduating class is not merely a statistic to be recorded in annual reports, it is a declaration that Thomas Adewumi University has transcended the realm of promise and entered the domain of proof.
“We have moved from potential to performance, from aspiration to achievement, from vision to velocity.
This year, 63 graduands from 4 Faculties and 11 academic programmes are being conferred. It is noteworthy that we have 16 First Class graduates, 40 in Second Class Upper Division, and 7 in Second Class Lower Division. These results reflect the quality of training and mentorship provided at Thomas Adewumi University, and we are proud to contribute these innovators to both the Nigerian and global workforce, confident that they will make a meaningful
impact.
”Preparing Globally Competitive Graduates, these 63 graduands are not merely degree holders, they are comprehensively prepared global professionals equipped with exceptional advantages that set them apart from their peers nationwide. Through our international partnerships, these graduates have obtained additional microcredentials from MIT, Harvard, Stanford, Columbia, Berkeley, and Yale, world-class certifications from Alison, UK, RUDN professional University, Russia, World Bank’s Saylor Academy, Google, ICAN, and the Global Partnership for Sustainable Development initiatives in Data Science and Artificial Intelligence.
“Our Coursera collaboration provided them with additional industry certifications, while partnerships with Microsoft, IBM SkillsBuild, and MIT OpenCourseWare through our Global Campus initiative democratize access to cutting-edge knowledge. They are thus fully equipped to embark on meaningful and innovative careers in today’s technology-driven world.”
Earlier in his Convocation Lecture, titled “Crowdfunding Opportunities forstartups: Equiping Nigerian graduates for a sustainable future”, Dr. Bayo Williams Olugbemi charged the graduads on the mindset of job creation, saying “as a graduate, your future is not defined by what Nigeria gives you, but by what you create. The idea of crowdfunding is the idea of hope. It is proof that when people come together, ideas once impossible become achievable.
“I urge you not to think only about searching for jobs. Instead, think about creating value, and if capital is a barrier, remember: “The crowd can be your first investor.”
In his goodwill message, the Executive Secretary of the National University Commission, Professor Abdullahi Ribadu, represented by Esther I. Eyo, Esq commended the resilience of TAU management said “NUC acknowledges TAU sustained progress in advancing quality teaching, impactful research, innovation, and community engagement, all of which align with our national aspiration for a globally competitive and knowledge-driven university system.
“It would interest you to know that, in the accreditation exercise conducted in 2023, Thomas Adewumi University achieved a 100% Full Accreditation status across all programmes assessed a laudable feat that reflects the University’s strong commitment to maintaining high academic standards.”
Also speaking, the Founder/Chancellor of the institution, Dr. (Engr) Johnson Adewumi, urged the graduands to be good ambassadors of the University, adding: “Remember that your degree is not an end but a beginning, go forth with courage, humility, and a sense of responsibility. Strive to illuminate whatever space you occupy with the light of integrity, excellence and service.”
Highlight of the event was the conferment of an honorary doctorate degree on two distinguished personalities; Engr Oluseyi Afolabi and Pastor Oladokun Olatunde.
End
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photo
L-r Speaker, House of Representatives, Tajudeen Abbas; President of the Senate, Godswill Akpabio and Nigeria’s First Lady, Senator Oluremi Tinubu, during the dinner for members of the National Assembly by the First Lady yesterday. Photo: Senate President’s Office.
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JUST IN: Even Tinubu moves with too many police escorts – Senator Ndume
By Hassan Taiye
Senator Ali Ndume has criticised what he described as the excessive use of security convoys by top government officials, including President Bola Tinubu, warning that the practice leaves ordinary citizens exposed and vulnerable.
Speaking on Politics Today on Channels Television on Thursday, Ndume said many public office holders move with security details that are unnecessarily large, even when their positions do not warrant such heavy protection.
He recalled visiting the residence of a colleague and finding “more than 10 policemen” attached to him, despite the lawmaker being junior to him in the National Assembly.
Ndume further argued that the presidential convoy itself is excessively large, stressing that security efforts should be focused on protecting the overall environment rather than individual personalities.
He said: “I went to one of my colleagues’ house for dinner. And I saw more than 10 policemen. He is even my junior in the National Assembly. Some of them, if you see them coming, you will pull back thinking that maybe it’s the President or the Vice President that is coming.
“
You can see even the president, the convoy that the president goes about with is too much. Secure the place and when the president goes, you withdraw. Secure Abuja and the president can even drive out, you know, himself.
But when you secure personalities, and this is what is happening in Nigeria, then others, common people, as we call them, become vulnerable, and we don’t care. So if you secure Abuja, then you can drive at night. And let me tell you, this is what is happening in most countries”.
The lawmaker’s comments come just days after President Tinubu ordered the withdrawal of police officers from VIP escort and guard duties.
In a statement, the Special Adviser to the President on Information and Strategy, Bayo Onanuga, said the directive was aimed at redeploying police manpower to core law enforcement responsibilities.
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