Viettel has launched Vietnam’s first commercial 5G network, offering early access with faster speeds and enhanced connectivity in select areas as the country moves into the 5G era.

The official enrollment of Vietnam’s first commercial 5G network is expected from Viettel on Oct. 15, marking the 20th anniversary of the military-run telecom service provider.

However, users can already sign up for the service and experience high-speed connectivity in covered areas ahead of the official launch.

One such early adopter is Tran Duc, who lives in Ho Chi Minh City. Duc mentioned that he first noticed 5G advertisements at the end of last month but was initially skeptical, given the repeated delays in 5G commercialization.

Upon visiting a telecom store earlier this week, staff confirmed that “registration is now available,” with prepaid packages starting from VND135,000 (US$5.43).

“After registering, whenever I enter a 5G-covered area, my phone automatically switches to the network,” Duc shared. Unlike previous free trial periods, his app now tracks data usage as it depletes.

Since early this month, prepaid subscribers have been able to sign up for 5G via various Viettel sales websites. By Thursday, postpaid packages were also introduced.

Over the weekend, users across several places, including Ho Chi Minh City, Hanoi, and provinces near the capital like Thai Binh and Nam Dinh, reported seeing unexpected 5G signals, though the connection later disappeared. After subscribing to the service, the signal reappeared.

Viettel Telecom has not yet commented on the rollout. Earlier, the company launched the “Nine” package, which ranges from VND200,000 to VND2 million and offers “priority early 5G access” to subscribers.

As the service is still under development and not officially launched, some users have experienced registration difficulties.

Minh Thanh, another HCMC resident, noted that he has not been able to switch to 5G due to using a SIM card with an annual 4G plan. The telecom app does not display the 5G service, requiring users to register through SMS, USSD codes, or by contacting customer service.

Users should also ensure their area has 5G coverage before switching.

Globally, 5G technology has been commercially deployed for five years, ushering in an era of hyperconnectivity and enabling the Internet of Things (IoT).

In China, 5G is used across industries such as manufacturing, mining, power grids, ports, and healthcare, while many countries are still in the testing phase.

For regular users, 5G offers significantly faster speeds, with ideal maximums reaching 10 Gbps. In practical use, speeds of 1 Gbps—10 times faster than the 100 Mbps of 4G—are common, improving online work, study, and entertainment experiences.

Other key advantages of 5G include ultra-low latency and the ability to support many devices simultaneously, enabling technologies like autonomous vehicles, remote surgical device control, and virtual and augmented reality experiences. However, 5G stations cover smaller areas due to higher frequencies, requiring more stations compared to 4G.

To use 5G, in addition to subscribing to the service, users need a compatible device. High-end smartphones such as the iPhone 12, Galaxy S20 Ultra, Galaxy Z Fold2, and newer models already support 5G. Many mid-range and budget Android phones released in the last 2-3 years are also equipped with this connectivity.

The S.O. immediately begins the restoration of the grid (called black start), usually within the hour of the collapse.

All GenCos (Zungeru, Egbim, Alaoji, Afam, Omotosho, Papalanto, Shiroro, Jebba, Kainji etc) will gradually initiate generation and synchronisation.

Both National & Regional Control Centers in Osogbo/Shiroro/Lagos monitors load generation+transmission (synchronization) and with more emphasis on distribution Discos maintaining specific load allocation in other not to collapse the system yet, again.

The Eleven Discos through their Dispatch Offices initiates standby for power supply to be restored to sensitive Areas. Example: In Abuja, AEDC Dispatch Offices initiates immediate restoration to Aso Rock State House, NIA, DSS, MILITARY FORMATIONS, RADIO AND TV HQs, FORCE HQ, Sensitive Government offices and residences, etc

Bulk load to consumers will be strategically despatch to priority location while ensuring stability.

If everything goes well, 50% generation or higher may likely be restored before 6 am tomorrow morning.

Abuja & Lagos likely to get light this night, with not 100% coverage and assurance.

In a few hours, a spacecraft should blast-off from Florida on the hunt for signs of alien life.

Its destination is Europa, a deeply-mysterious moon orbiting the distant planet Jupiter.

Trapped under its icy surface could be a vast ocean with double the amount of water on Earth.

The Europa Clipper spacecraft will chase a European mission that left last year, but using a cosmic piggyback, it will overtake and arrive first.

That won’t be until 2030 but what it finds could change what we know about life in our solar system.

A moon five times brighter than ours

Years in the making, the Europa Clipper launch was delayed at the last minute after hurricane Milton blasted Florida this week.

The spacecraft was rushed indoors for shelter, but after checking the launchpad at Cape Canaveral for damage, engineers have now given the go-ahead for lift-off at 1206 local time (1706 BST) on 14 October.

“If we discover life so far away from the Sun, it would imply a separate origin of life to the earth,” says Mark Fox-Powell, a planetary microbiologist at the Open University.

“That is hugely significant, because if that happens twice in our solar system, it could mean life is really common,” he says.

Located 628m km from Earth, Europa is just a bit bigger than our moon, but that is where the similarity ends.

If it was in our skies, it would shine five times brighter because the water ice would reflect much more sunlight.

Its icy crust is up to 25km thick, and sloshing beneath, there could be a vast saltwater ocean. There may also be chemicals that are the ingredients for simple life.

The spacecraft is just longer than a professional basketball court and weighs around the same as an African elephant
© BBC

Scientists first realised Europa might support life in the 1970s when, peering through a telescope in Arizona, they saw water ice.

Voyager 1 and 2 spacecrafts captured the first close-up images, and then in 1995 Nasa’s Galileo spacecraft flew past Europa taking some deeply puzzling pictures. They showed a surface riddled with dark, reddish-brown cracks; fractures that may contain salts and sulfur compounds that could support life.

The James Webb telescope has since taken pictures of what might be plumes of water ejected 100 miles (160 kilometers) above the moon’s surface

But none of those missions got close enough to Europa for long enough to really understand it.

Flying through plumes of water

Now scientists hope that instruments on Nasa’s Clipper spacecraft will map almost the entire moon, as well as collect dust particles and fly through the water plumes.

Britney Schmidt, associate professor of earth and atmospheric sciences at Cornell university in the US, helped to design a laser onboard that will see through the ice.

The strange surface of Europa – captured by Galileo spacecraft in the 1990s
© NASA/JPL-Caltech/SETI Institute

“I’m most excited about understanding Europa’s plumbing. Where’s the water? Europa has the ice version of Earth’s subduction zones, magma chambers and tectonics – we’re going to try to see into those regions and map them,” she says.

Her instrument, which is called Reason, was tested in Antarctica.

But unlike on Earth, all the instruments on Clipper will be exposed to huge amounts of radiation which Prof Schmidt says is a “major concern.”

The spacecraft should fly past Europa about 50 times, and each time, it will be blasted with radiation equivalent to one million X-rays.

“Much of the electronics are in a vault that’s heavily shielded to keep out radiation,” Prof Schmidt explains.

The spaceship is the largest ever built to visit a planet and has a long journey ahead. Travelling 1.8 billion miles, it will orbit both the Earth and Mars to propel itself further towards Jupiter in what is called the sling-shot effect.

Europa Clipper will travel for five and a half years to reach Jupiter
© BBC

It cannot carry enough fuel to motor itself all the way alone, so it will piggyback off the momentum of Earth and Mars’s gravitational pull.

It will overtake JUICE, the European Space Agency’s spaceship that will also visit Europa on its way to another of Jupiter’s moons called Ganeymede.

Once Clipper approaches Europa in 2030 it will switch on its engines again to carefully manoeuvre itself into the right orbit.

The left image shows the natural appearance of Europa, and the right image uses colour to highlight the water-ice crust
© NASA/JPL/DLR

Space scientists are very cautious when talking about the chances of discovering life- there is no expectation that they will find human-like creatures or animals

“We are searching for the potential for habitability and you need four things – liquid water, a heat source, and organic material. Finally those three ingredients need to be stable over a long enough period of time that something can happen,” explains Michelle Dougherty, professor of space physics at Imperial College in London.

And they hope that if they can understand the ice surface better, they will know where to land a craft on a future mission.

An international team of scientists with Nasa, the Jet Propulsion Lab and the Johns Hopkins Applied Physics Lab will oversee the odyssey.

At a time when there is a space launch virtually every week, this mission promises something different, suggests Professor Fox-Powell.

“There’s no profit being made. This is about exploration and curiosity, and pushing back the boundaries of our knowledge of our place in the universe,” he says.