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Dams burst in northeastern Brazil as region hit by floods

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Two dams gave way in the northeastern Brazilian state of Bahia after weeks of heavy rains, swamping already swollen local rivers as flooding hit towns across the region, authorities said on Sunday, Reuters reported.

According to the report the Igua dam, on the Verruga river near the city of Vitoria da Conquista in southern Bahia, collapsed on Saturday night, forcing authorities to evacuate residents, mainly in the town of Itambe.

A second dam gave way to rising water levels in Jussiape, 100 kilometers to the north, on Sunday morning, bringing more alerts for residents to move to safer ground.
There were no reports of deaths or injuries caused by the dam failures, though bridges and roads were damaged.

Further towards the coast in Itabuna, a city of 200,000 inhabitants, fire brigade teams rescued residents trapped in their homes in the downtown area that was under water, Reuters reporters said.

“It’s crazy by the bridge, there are waves almost 2 meters high,” shopkeeper Luiz Constancia told Reuters.

Rescuers rowed dinghies along flooded streets to reach trapped families or take them supplies. One man paddled on an inflatable mattress to reach a home.

Residents said the level of the Cachoeira river that runs through the town located 30 kms from the coastal port city of Ilheus was the highest in 50 years, read the report.

In Vitoria da Conquista, Mayor Sheila Lemos, said all residents close to the collapsed Igua dam had been evacuated.

In a posting on the city’s website, Lemos said the flooding threatened to cut off the BR-116 highway, a major truck route between northeastern and southern Brazil.

Bahia Governor Rui Castro said at least 400,000 people have been impacted by the heavy rains and thousands evacuated from some 67 towns facing emergency situationsdue to floods caused by heavy rainfall for almost two months.

“Thousands of people have had to leave their homes because the water rose one or two meters, even three meters in some places,” he told reporters on Saturday.

The rains have caused 18 deaths in Bahia since the beginning of November, including a 60-year-old ferry owner who drowned on the swollen Rio das Contas river, civil defense officials said.

According to the Reuters in the state capital of Salvador, weather officials said December rainfall has been six times greater than the average.

Science & Technology

Meta turns off Instagram’s private messaging encryption worldwide

Meta said the decision was based on low user adoption, though critics argue optional privacy tools often see limited use because users must manually activate them.

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Instagram has disabled its end-to-end encrypted (E2EE) direct messaging feature worldwide, marking a major reversal by parent company Meta on its previous commitment to stronger user privacy protections.

The move means Instagram users can no longer send ultra-private direct messages protected by E2EE — a security system that allows only the sender and recipient to read messages. Without the feature, Instagram can technically access the content of direct messages, including photos, videos and voice notes.

Meta had previously promoted encryption as “the future is private.” In 2019, CEO Mark Zuckerberg pledged to expand the technology across the company’s platforms.

Facebook Messenger adopted E2EE in 2023, while Instagram introduced it as an optional feature with plans to make it standard.

However, Meta has now abandoned the wider Instagram rollout and updated the app’s terms in March to confirm encrypted messaging would no longer be supported after 8 May 2026.

Meta said the decision was based on low user adoption, though critics argue optional privacy tools often see limited use because users must manually activate them.

The move has divided opinion. Child protection groups, including the NSPCC, welcomed the change, saying encryption can make it harder to detect child grooming and abuse online.

Privacy advocates criticised the decision. Maya Thomas of Big Brother Watch warned the move weakens online privacy protections and could increase pressure on other social media companies to scale back encryption.

End-to-end encryption remains standard on platforms including WhatsApp, Signal, Apple’s iMessage and Google Messages, while other platforms continue to take mixed approaches to private messaging.

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James Webb Telescope captures clearest-ever view of exoplanet’s surface

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Astronomers using NASA’s James Webb Space Telescope have obtained the clearest view yet of the surface of a rocky exoplanet, revealing a scorched, atmosphere-free world that scientists say resembles a giant version of Mercury.

The planet, known as LHS 3844 b and nicknamed “Kua’kua,” appears to be a barren, uninhabitable world with extreme temperature swings and no detectable atmosphere, according to a study published this week in Nature Astronomy.

Researchers said the planet’s surface is likely covered in dark volcanic rock and ancient regolith — loose rocky debris formed over billions of years from relentless bombardment by radiation and micrometeorite impacts.

“This planet is not a nice place,” said astronomer Laura Kreidberg, senior author of the study. “It’s a hellish, barren rock — much more similar to Mercury than Earth.”

Located about 49 light-years away, LHS 3844 b orbits a small red dwarf star and completes a full orbit every 11 hours. The planet is tidally locked, meaning one side permanently faces its star while the other remains in darkness — similar to how the Moon always shows the same face to Earth.

Scientists found the planet’s dayside reaches roughly 1,340 degrees Fahrenheit (725 degrees Celsius), while the nightside showed almost no detectable heat.

Using Webb’s infrared instruments, researchers were able to directly analyze light coming from the planet’s surface — a major breakthrough for exoplanet science.

“Different rocks have different spectral fingerprints,” said lead author Sebastian Zieba. “Dark volcanic rocks like basalt matched our observations much better than brighter rocks like granite.”

The findings mark a new phase in exoplanet research, shifting beyond atmospheric studies toward direct analysis of alien geology and surface composition.

Since becoming operational in 2022, the Webb telescope has transformed scientists’ understanding of planets beyond the solar system, helping identify atmospheric chemistry, weather patterns and now even the nature of distant planetary surfaces.

Researchers said the absence of an atmosphere on LHS 3844 b means there is little protection from stellar radiation and virtually no possibility of liquid water — a key ingredient for life.

“So overall, this is almost certainly not a habitable world,” Zieba said.

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Afghanistan launches first 5G trial in Kabul to boost telecom services

According to ministry spokesperson Enayatullah Alokozai, AWCC has upgraded 74 telecom antennas in Kabul to 5G on a trial basis.

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Afghanistan has launched its first-ever 5G telecommunications trial in Kabul, marking a major milestone in efforts to modernise the country’s digital infrastructure.

The announcement followed a meeting between Hamdullah Nomani, Minister of Communications and Information Technology, and Aliullah Sarwari, head of the Afghan Wireless Communication Company (AWCC), where discussions focused on expanding telecom coverage, improving service quality, and extending connectivity to remote regions.

According to ministry spokesperson Enayatullah Alokozai, AWCC has upgraded 74 telecom antennas in Kabul to 5G on a trial basis. Once technical preparations and testing are completed, the company plans to extend 5G services to other provinces.

Officials also reported steady progress on broader infrastructure development. Eight telecom sites approved during previous official visits to northern and southeastern provinces have been completed, one is nearing completion, and construction continues on two additional sites expected to become operational soon.

In parallel, the Afghanistan Telecom Regulatory Authority (ATRA) has approved eight more telecom sites under the Telecom Development Fund (TDF), with implementation scheduled in the coming months.

Sarwari noted that since the beginning of 2026, AWCC has built and activated 46 telecom sites using its development budget, while work continues on a further 186 sites nationwide.

He also thanked the Ministry of Communications and Information Technology for its ongoing support in facilitating sector growth and improving service delivery.

Nomani meanwhile emphasised that telecommunications play a crucial role in national development and said the government remains committed to working closely with operators to expand modern, high-quality digital services.

Officials added that cooperation between the ministry, regulators, and telecom companies will continue across all operational and regulatory areas to strengthen Afghanistan’s communications network.

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