For years, astronomers have been picking up strange bursts of energy from the cosmos — signals that last just milliseconds yet carry more power than the Sun releases in days. These puzzling flashes, known as fast radio bursts (FRBs), have become one of the greatest unsolved mysteries in astronomy.
What exactly are FRBs?
Fast radio bursts are ultra-bright pulses of radio waves that appear suddenly and then vanish. Some flare only once, while others repeat at irregular intervals.
The first FRB was detected in 2007 in archived telescope data from Australia. Since then, thousands more have been observed, but their origins remain elusive.
“It’s like someone is flicking a cosmic light switch on and off,” said Duncan Lorimer, the astrophysicist who first described the phenomenon. “But we don’t know who — or what — is behind it.”
Why are they so baffling?
Each FRB unleashes as much energy in a fraction of a second as 500 million Suns. “The sheer intensity is staggering,” noted Harvard astronomer Avi Loeb. “Whatever produces them must be among the most powerful engines in the universe.”
Pinpointing the origins is difficult. Some FRBs come from billions of light-years away, scattered across the universe. Theories include magnetars (super-magnetic neutron stars), collapsing stars, black holes colliding, and in the more speculative camp, even advanced alien technology.
While most bursts are one-offs, some repeat with odd rhythms. One discovered in 2020 emitted bursts every 16 days. “It’s like hearing a drumbeat from space,” said Kenzie Nimmo, an FRB researcher. “But the drummer is invisible.”
On their way to Earth, FRBs travel through cosmic gas, plasma and magnetic fields that bend and smear the signals. By the time they arrive, they’re so warped that tracing them back to their precise birthplace is almost impossible.
What do scientists know so far?
Why it matters
Solving the FRB mystery could open a new window into the universe. They could reveal the secrets of dark matter, measure how fast the universe is expanding, or uncover unknown forms of physics.
“Every time we think we’ve got it figured out, the universe throws us a curveball,” said Shami Chatterjee of Cornell University. “That’s what makes FRBs so exciting, they constantly defy expectations.”
The bottom line
Fast radio bursts are not proof of alien life, but they’re not fully explained by current science either. They sit in the tantalising gap between known physics and the unknown.
Whether they’re the work of collapsing stars, hyper-magnetised neutron stars, or something humanity has yet to imagine, FRBs remind us that the universe is still full of mysteries, and that sometimes, the cosmos whispers in bursts of static across the stars.
U.S. President Donald Trump says Washington is not seeking an extension of its memorandum of understanding with...
Iran says it will use all diplomatic and legal channels to determine the fate of three Air Force pilots it believes are being held in Qatar after t...
Nearly a week after a powerful 7.4-magnitude earthquake struck western Colombia, hopes of finding more survivors are fading as rescue teams search ...
At least 11 people were killed in Israeli strikes on southern Lebanon on Saturday, among the deadliest since a June ceasefire. Meanwhile, Qatar denied holding Iranian pilots. It said it had found the remains of one pilot after an airspace violation and had contacted Iran to coordinate a handover.
U.S. President Donald Trump says Washington is not seeking an extension of its memorandum of understanding with Iran, claiming the U.S. already controls the Strait of Hormuz through its naval blockade.
A wildfire in Croatia driven by strong winds descended on the tourist town of Omis overnight, engulfing houses, forcing about 1,000 people to evacuate to safety and injuring dozens, fire brigade and health officials said on Friday.
South Korea's presidential Blue House said on Monday it was reviewing U.S. President Donald Trump's comments on scaling back joint military drills. It added that it hoped a favourable relationship between Washington and Pyongyang could lead to meaningful talks.
Residents of villages in eastern Indonesia hit by a deadly earthquake that killed at least 54 people were awaiting aid on Monday as rescuers prepared to comb through collapsed buildings in search of people trapped beneath the rubble.
Nearly a week after a powerful 7.4-magnitude earthquake struck western Colombia, hopes of finding more survivors are fading as rescue teams search collapsed buildings and communities confront widespread destruction.
Central Asia has become a major focus for Eurasian transport investment, with $71.7 billion committed to 114 projects, according to the Eurasian Development Bank’s 2026 Transport Observatory.
The European Union is preparing what foreign policy chief Kaja Kallas has described as its most far-reaching sanctions package against Russia since the war in Ukraine began.
Weeks after thousands of students protested in New Delhi over alleged failures in India’s examination system, the so-called Cockroach movement is taking its campaign to the grassroots, launching audits of state-run schools.
UNESCO Director-General Khaled El-Enany visited Ukraine for the first time since taking office, meeting Foreign Minister Andrii Sybiha in Kyiv on 15 August to discuss protecting the country’s cultural heritage amid continued Russian attacks.
You can download the AnewZ application from Play Store and the App Store.
What is your opinion on this topic?
Leave the first comment