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Scientists Develop 'Space Bricks' for Construction on Mars

An illustration of NASA’s “Perseverance” rover casting off its spacecraft’s cruise stage, minutes before entering the Martian atmosphere, photo obtained on Feb. 15, 2021. (NASA Handout via AFP)
An illustration of NASA’s “Perseverance” rover casting off its spacecraft’s cruise stage, minutes before entering the Martian atmosphere, photo obtained on Feb. 15, 2021. (NASA Handout via AFP)
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Scientists Develop 'Space Bricks' for Construction on Mars

An illustration of NASA’s “Perseverance” rover casting off its spacecraft’s cruise stage, minutes before entering the Martian atmosphere, photo obtained on Feb. 15, 2021. (NASA Handout via AFP)
An illustration of NASA’s “Perseverance” rover casting off its spacecraft’s cruise stage, minutes before entering the Martian atmosphere, photo obtained on Feb. 15, 2021. (NASA Handout via AFP)

In collaboration with the Indian Space Research Organization (ISRO), a team of researchers from the Indian Institute of Science (IISc) has developed a sustainable method for making bricks out of Martian soil, using bacteria and urea.

These “space bricks” can be used to construct building-like structures on Mars that could facilitate human settlement on the red planet.

The method for making these space bricks has been outlined in a study published in the journal PLOS One.

A slurry is first created by mixing Martian soil with guar gum, a bacterium called Sporosarcina pasteurii, urea and nickel chloride (NiCl2). This slurry can be poured into molds of any desired shape, and over a few days the bacteria convert the urea into crystals of calcium carbonate. These crystals, along with biopolymers secreted by the microbes, act as cement holding the soil particles together.

An advantage of this method is the reduced porosity of the bricks, which has been a problem with other methods used to consolidate Martian soil into bricks, says Aloke Kumar, associate professor in the Department of Mechanical Engineering at IISc, one of the senior authors of the paper.

The research group had previously worked on making bricks out of lunar soil, using a similar method. However, the previous method could only produce cylindrical bricks, while the current slurry-casting method can also produce bricks of complex shapes.

The slurry-casting method was developed with the help of Koushik Viswanathan, assistant professor in the Department of Mechanical Engineering, IISc, whose lab works on advanced manufacturing processes. In addition, extending the method to Martian soil proved challenging.

“Martian soil contains a lot of iron, which causes toxicity to organisms. In the beginning, our bacteria did not grow at all. Adding nickel chloride was the key step in making the soil hospitable to the bacteria,” explains Kumar.

The group plans to investigate the effect of Mars’ atmosphere and low gravity on the strength of the space bricks. The Martian atmosphere is 100 times thinner than Earth’s atmosphere, and contains over 95% carbon dioxide, which may significantly affect bacterial growth.

The researchers have constructed a device called MARS (Martian AtmospheRe Simulator), which consists of a chamber that reproduces the atmospheric conditions found on Mars in the lab. The team has also developed a lab-on-a-chip device that aims to measure bacterial activity in micro-gravity conditions.

“The device is being developed keeping in mind our intention to perform experiments in micro-gravity conditions in the near future. With ISRO’s help, the team plans to send such devices into space, so that they can study the effect of low gravity on the bacterial growth,” explains Rashmi Dikshit, a co-author of the study.

“I'm so excited that many researchers across the world are thinking about colonizing other planets. It may not happen quickly, but people are actively working on it,” says Kumar.

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Egypt Reveals Restored Colossal Statues of Pharaoh in Luxor

Visitors watch the two giant reassembled alabaster statues of Pharoah Amenhotep III, in the southern city of Luxor, Egypt, Sunday, Dec. 14, 2025. (AP Photo/Amr Nabil)
Visitors watch the two giant reassembled alabaster statues of Pharoah Amenhotep III, in the southern city of Luxor, Egypt, Sunday, Dec. 14, 2025. (AP Photo/Amr Nabil)
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Egypt Reveals Restored Colossal Statues of Pharaoh in Luxor

Visitors watch the two giant reassembled alabaster statues of Pharoah Amenhotep III, in the southern city of Luxor, Egypt, Sunday, Dec. 14, 2025. (AP Photo/Amr Nabil)
Visitors watch the two giant reassembled alabaster statues of Pharoah Amenhotep III, in the southern city of Luxor, Egypt, Sunday, Dec. 14, 2025. (AP Photo/Amr Nabil)

Egypt on Sunday revealed the revamp of two colossal statues of a prominent pharaoh in the southern city of Luxor, the latest in the government’s archaeological events that aim at drawing more tourists to the country.

The giant alabaster statues, known as the Colossi of Memnon, were reassembled in a renovation project that lasted about two decades. They represent Amenhotep III, who ruled ancient Egypt about 3,400 years ago.

“Today we are celebrating, actually, the finishing and the erecting of these two colossal statues,” Mohamed Ismail, secretary-general of the Supreme Council of Antiquities, told The Associated Press ahead of the ceremony.

Attempts to revive a prestigious temple Ismail said the colossi are of great significance to Luxor, a city known for its ancient temples and other antiquities.

They’re also an attempt to “revive how this funerary temple of king Amenhotep III looked like a long time ago,” Ismail said.

Amenhotep III, one of the most prominent pharaohs, ruled during the 500 years of the New Kingdom, which was the most prosperous time for ancient Egypt.

The pharaoh, whose mummy is showcased at a Cairo museum, ruled between 1390–1353 BC, a peaceful period known for its prosperity and great construction, including his mortuary temple, where the Colossi of Memnon are located, and another temple, Soleb, in Nubia.

The colossi were toppled by a strong earthquake in about 1200 BC that also destroyed Amenhotep III’s funerary temple, said Mohamed Ismail, secretary-general of the Supreme Council of Antiquities.

They were fragmented and partly quarried away, with their pedestals dispersed.

Some of their blocks were reused in the Karnak temple, but archaeologists brought them back to rebuild the colossi, according to the Antiquities Ministry.

In late 1990s, an Egyptian German mission, chaired by German Egyptologist Hourig Sourouzian, began working in the temple area, including the assembly and renovation of the colossi.

“This project has in mind ... to save the last remains of a once-prestigious temple,” she said.

The statues show Amenhotep III seated with hands resting on his thighs, with their faces looking eastward toward the Nile and the rising sun. They wear the nemes headdress surmounted by the double crowns and the pleated royal kilt, which symbolizes the pharaoh’s divine rule.

Two other small statues on the pharaoh’s feet depict his wife, Tiye.

The colossi — 14.5 meters (48 feet) and 13.6 meters (45 feet) respectively — preside over the entrance of the king’s temple on the western bank of the Nile.

The 35-hectare (86-acre) complex is believed to be the largest and richest temple in Egypt and is usually compared to the temple of Karnak, also in Luxor.

The colossi were hewn in Egyptian alabaster from the quarries of Hatnub, in Middle Egypt. They were fixed on large pedestals with inscriptions showing the name of the temple, as well as the quarry.

Unlike other monumental sculptures of ancient Egypt, the colossi were partly compiled with pieces sculpted separately, which were fixed into each statue’s main monolithic alabaster core, the ministry said.

Sunday’s unveiling in Luxor came just six weeks after the inauguration of the long-delayed Grand Egyptian Museum, the centerpiece of the government’s bid to boost the country’s tourism industry. The mega project is located near the famed Giza Pyramids and the Sphinx.

“This site is going to be a point of interest for years to come,” said Tourism and Antiquities Minister Sherif Fathy, who attended the unveiling ceremony. “There are always new things happening in Luxor.”

A record number of about 15.7 million tourists visited Egypt in 2024, contributing about 8% of the country’s GDP, according to official figures.

Fathy has said about 18 million tourists are expected to visit the country this year, with authorities hoping for 30 million visitors annually by 2032.

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National Wildlife Center Launches 2nd Phase to Regulate Unlicensed Species in Saudi Arabia

National Wildlife Center Launches 2nd Phase to Regulate Unlicensed Species in Saudi Arabia
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National Wildlife Center Launches 2nd Phase to Regulate Unlicensed Species in Saudi Arabia

National Wildlife Center Launches 2nd Phase to Regulate Unlicensed Species in Saudi Arabia

The National Center for Wildlife (NCW) has launched the second phase of its initiative to regulate the status of unlicensed wildlife species in the Kingdom, representing one of the most prominent national efforts to control wildlife possession, document ownership, and ensure that all practices related to housing, breeding, and trading comply with the Environmental Law and its implementing regulations, according to SPA.

The regularization period extends until the end of February 2026 and targets those who keep or handle wildlife on a large scale, including private collections (farms) containing more than 10 species, facilities engaged in breeding and housing wildlife, and businesses involved in selling wildlife products or derivatives.

This phase follows the success of the first, which focused on regulating the status of falcons, and reinforces the Kingdom's role in curbing illegal practices that could harm natural environments or threaten the survival of wildlife species. The initiative reflects a growing national commitment to protecting biodiversity and developing a more regulated system for managing wildlife within the Kingdom.

The regulation aims to build an accurate database of wildlife, enhance monitoring, and improve housing standards in accordance with environmental and health considerations.

The NWC emphasizes that this step aligns with national efforts to protect wildlife, support ecosystem sustainability, and address the challenges of illegal wildlife trafficking. It calls on all owners and relevant facilities to take advantage of the grace period, review the regulations through the "Fitri" platform, and contribute to a safer and more balanced ecosystem

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Islamabad Puts Drivers on Notice as Smog Crisis Worsens

This picture taken on December 9, 2025, shows buildings engulfed in dense smog due to severe air pollution in Islamabad. (Photo by Aamir QURESHI / AFP)
This picture taken on December 9, 2025, shows buildings engulfed in dense smog due to severe air pollution in Islamabad. (Photo by Aamir QURESHI / AFP)
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Islamabad Puts Drivers on Notice as Smog Crisis Worsens

This picture taken on December 9, 2025, shows buildings engulfed in dense smog due to severe air pollution in Islamabad. (Photo by Aamir QURESHI / AFP)
This picture taken on December 9, 2025, shows buildings engulfed in dense smog due to severe air pollution in Islamabad. (Photo by Aamir QURESHI / AFP)

Truck driver Muhammad Afzal was not expecting to be stopped by police, let alone fined, as he drove into Islamabad this week because of the thick diesel fumes emanating from his exhaust pipe.

"This is unfair," he said after being told to pay 1,000 rupees ($3.60), with the threat of having his truck impounded if he did not "fix" the problem.

"I was coming from Lahore after getting my vehicle repaired. They pressed the accelerator to make it release smoke. It's an injustice," he told AFP.

Checkpoints set up this month are part of a crackdown by authorities to combat the city's soaring smog levels, with winter months the worst due to atmospheric inversions that trap pollutants at ground level.

"We have already warned the owners of stern action, and we will stop their entry into the city if they don't comply with the orders," said Dr Zaigham Abbas of Pakistan's Environmental Protection Agency (EPA), as he surveyed the checkpoint at the southeast edge of the capital.

For Waleed Ahmed, a technician inspecting the vehicles at the site, "just like a human being, a vehicle has a life cycle. Those that cross it release smoke that is dangerous to human health".

While not yet at the extreme winter levels of Lahore or the megacity Karachi, where heavy industry and brick kilns spew tons of pollutants each year, Islamabad is steadily closing the gap.

So far in December it has already registered seven "very unhealthy" days for PM2.5 particulates of more than 150 micrograms per cubic meter, according to the Swiss-based monitoring firm IQAir.

Intraday PM2.5 levels in Islamabad often exceed those in Karachi and Lahore, and in 2024 the city's average PM2.5 reading for the year was 52.3 micrograms -- surpassing the 46.2 for Lahore.

Those annual readings are far beyond the safe level of five micrograms recommended by the World Health Organization.

Built from scratch as Pakistan's capital in the 1960s, the city was envisioned as an urban model for the rapidly growing nation, with wide avenues and ample green spaces abutting the Himalayan foothills.

But the expansive layout discourages walking and public transport remains limited, meaning cars -- mostly older models -- are essential for residents to get around.

"The capital region is choked overwhelmingly by its transport sector," which produces 53 percent of its toxic PM2.5 particles, the Pakistan Air Quality Initiative, a research group, said in a recent report.

"The haze over Islamabad... is not the smoke of industry, but the exhaust of a million private journeys -- a self-inflicted crisis," it said.

Announcing the crackdown on December 7, EPA chief Nazia Zaib Ali said over 300 fines were issued at checkpoints in the first week, with 80 vehicles impounded.

"We cannot allow non-compliant vehicles at any cost to poison the city's air and endanger public health," she said in a statement.

The city has also begun setting up stations where drivers can have their emissions inspected, with those passing receiving a green sticker on their windshield.

"We were worried for Lahore, but now it's Islamabad. And that's all because of vehicles emitting pollution," said Iftikhar Sarwar, 51, as he had his car checked on a busy road near an Islamabad park.

"I never needed medicine before but now I get allergies if I don't take a tablet in the morning. The same is happening with my family," he added.

Other residents say they worry the government's measures will not be enough to counter the worsening winter smog.

"This is not the Islamabad I came to 20 years ago," said Sulaman Ijaz, an anthropologist.

"I feel uneasy when I think about what I will say if my daughter asks for clean air -- that is her basic right."