Science & Technology
Explainer: What to know about October’s ‘ring of fire’ solar eclipse
Millions of people in the Americas will be in a position to witness an astronomical treat on Oct. 14 with a solar eclipse in which – weather permitting – the moon will be seen passing in front of the sun.
The eclipse is due to be visible along a path covering parts of the United States, Mexico and several countries in Central America and South America, Reuters reported.
Here is an explanation of the type of solar eclipse that will occur and where it will be visible.
WHAT IS AN ANNULAR SOLAR ECLIPSE?
A solar eclipse happens when the moon journeys between Earth and the sun, blocking the view along a small path of Earth of some or all of the sun’s face as it passes. The one that will occur on Oct. 14 is a type called an “annular solar eclipse.” This occurs when the moon passes between Earth and the sun at a time when the moon is at or close to its farthest point from our planet. It does not completely obscure the face of the sun, unlike in a total solar eclipse.
WHY DOES IT LOOK LIKE A RING OF FIRE?
Because the moon is farther than usual from Earth during an annular solar eclipse, the moon will not completely obscure the sun, instead looking like a dark disk superimposed atop the sun’s larger, bright face in the sky. As a result, the eclipse will momentarily look like a ring of fire surrounding the dark disc of the moon. A total solar eclipse is due to occur on April 8, 2024, passing over Mexico, the United States and Canada.
WHERE WILL IT BE VISIBLE AND WHAT IS ITS PATH?
According to the U.S. space agency NASA, the path in the United States where the maximum obscuring of the sun will occur on Oct. 14 runs through parts of several states beginning at 9:13 a.m. PDT (12:13 p.m. EDT/1613 GMT) in Oregon, then California, Nevada, Utah, Arizona, New Mexico and Texas. The path then crosses over parts of Mexico, Guatemala, Belize, Honduras, Nicaragua, Panama, Colombia and Brazil before ending at sunset in the Atlantic Ocean. People in much larger parts of North America, Central America and South America will be able to see lesser obscuring of the sun – still an impressive sight.
HOW BIG ARE THE EARTH, MOON AND SUN?
The moon will nearly cover the sun’s face, as visible from Earth, only because the moon – in actuality much smaller than the sun – is so much closer to our planet. The moon’s diameter is 2,159 miles (3,476 km), compared to the sun’s diameter of about 865,000 miles (1.4 million km) and Earth’s diameter of 7,918 miles (12,742 km).
WHAT IS THE SAFEST WAY TO WATCH AN ECLIPSE?
Experts warn that it is unsafe to look directly at the bright sun without using specialized eye protection designed for solar viewing, risking eye injury. Because the sun is never fully blocked by the moon in an annular solar eclipse, it is never safe to look directly at it without such eye protection. Viewing it through a camera lens, binoculars or telescope without making use of a special-purpose solar filter can cause severe eye injury, according to these experts. They advise using safe solar viewing glasses or a safe handheld solar viewer at all times during an annular solar eclipse, noting that regular sunglasses are not safe for viewing the sun.
HOW DO SOLAR ECLIPSES DIFFER FROM LUNAR ECLIPSES?
Lunar eclipses occur when Earth is positioned between the moon and the sun and our planet’s shadow is cast upon the lunar surface. This leaves the moon looking dim from Earth, sometimes with a reddish color. Lunar eclipses are visible from half of Earth, a much wide area than solar eclipses.
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.
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.
Science & Technology
James Webb Telescope captures clearest-ever view of exoplanet’s surface
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.
Science & Technology
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.
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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