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New Study: Methylene Blue Could Work as Effective Sunscreen

A school of fish swim above a staghorn coral colony as it grows on the Great Barrier Reef off the coast of Cairns, Australia, Oct. 25, 2019. (Reuters Photo)
A school of fish swim above a staghorn coral colony as it grows on the Great Barrier Reef off the coast of Cairns, Australia, Oct. 25, 2019. (Reuters Photo)
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New Study: Methylene Blue Could Work as Effective Sunscreen

A school of fish swim above a staghorn coral colony as it grows on the Great Barrier Reef off the coast of Cairns, Australia, Oct. 25, 2019. (Reuters Photo)
A school of fish swim above a staghorn coral colony as it grows on the Great Barrier Reef off the coast of Cairns, Australia, Oct. 25, 2019. (Reuters Photo)

A new US study published in the latest issue of the journal Scientific Reports found that Methylene Blue has proven effective in protecting from UV irradiation as well as being safe for coral reefs, providing an alternative solution to protecting human skin and the environment.

Around 80% of current sunscreens are harmful to corals as they contain Oxybenzone as a chemical UV blocker, a product known to detrimentally affect corals. In response, many countries have forbidden its use to limit the damage to coral reefs. Additionally, it could cause a lot of damages when used in sunscreen products.

The team of scientists from the University of Maryland examined the UV protection benefits of Methylene Blue from several perspectives. Human keratinocytes and skin fibroblasts were considered from young and old donors and compared UV damage with Oxybenzone.

Results showed that Methylene Blue not only absorbs UVA and UVB as the traditional sunscreen actives do, it also helps repair the DNA damage caused by UV irradiation, leading to overall better cell survival.

The team then exposed the soft Xenia umbellate coral to both Oxybenzone and Methylene Blue. The coral individuals were kept in isolated tanks as researchers monitored the growth and responses to both chemicals. The results showed Oxybenzone-treated Xenia corals suffered drastic bleaching and die-off in less than a week after exposure, while Methylene Blue exposure had no negative effects on coral health even at a relatively high concentration (1 micromolar).

In addition, the researchers also compared Methylene Blue with other skincare antioxidants such as Vitamin A (Retinol) and Vitamin C. This was to examine potential differences in their ability to reduce cellular oxidative stress.

"We are extremely excited to see that skin fibroblasts, derived from both young and old individuals, have improved so much in terms of proliferation and cellular stress in a methylene blue-containing cell culture medium. We found that the combination of Methylene Blue and Vitamin C could deliver amazing anti-aging effects, particularly in skin cells from older donors, suggesting a strong synergistic reaction between these two beneficial antioxidants," said Dr. Kan Cao, senior author and professor of cell biology and molecular genetics at the University of Maryland, in a report.

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China's LandSpace Hopes to Complete Rocket Recovery in Mid-2026

Zhuque-3 rocket by China’s private rocket firm LandSpace, takes off from the Jiuquan Satellite Launch Center, China, December 3, 2025, in this screengrab taken from handout drone footage provided by LandSpace. LandSpace/Handout via REUTERS
Zhuque-3 rocket by China’s private rocket firm LandSpace, takes off from the Jiuquan Satellite Launch Center, China, December 3, 2025, in this screengrab taken from handout drone footage provided by LandSpace. LandSpace/Handout via REUTERS
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China's LandSpace Hopes to Complete Rocket Recovery in Mid-2026

Zhuque-3 rocket by China’s private rocket firm LandSpace, takes off from the Jiuquan Satellite Launch Center, China, December 3, 2025, in this screengrab taken from handout drone footage provided by LandSpace. LandSpace/Handout via REUTERS
Zhuque-3 rocket by China’s private rocket firm LandSpace, takes off from the Jiuquan Satellite Launch Center, China, December 3, 2025, in this screengrab taken from handout drone footage provided by LandSpace. LandSpace/Handout via REUTERS

Chinese rocket developer LandSpace plans to successfully recover a reusable booster in mid-2026, a company executive said in an interview, underscoring the Beijing-based firm's ambition to become China's answer to SpaceX.

The ability to return, recover, and reuse a rocket's engine-packed first stage, or booster, after launch is crucial to reducing costs and making it easier for countries to send satellites into orbit, and to turn space exploration into a commercially viable business similar to civil aviation, Reuters reported.

Earlier this month, privately-owned LandSpace ‌became the first ‌Chinese entity to conduct a full reusable rocket ‌test, when ⁠Zhuque-3 ​blasted off ‌from a remote area in northwest China for its maiden flight, drawing comparisons to US aerospace giant SpaceX.

SECOND ATTEMPT PLANNED

While LandSpace failed to complete the crucial final step of landing and recovering the rocket's engine-packed booster, it hopes to clear this challenge in mid-2026 with a second test flight, Zhuque-3 deputy chief designer Dong Kai told Chinese podcast Tech Early Know in an interview published on Tuesday.

"If the second flight's recovery (stage) succeeds, we ⁠plan that on the fourth flight we will use a reused first stage to launch," Dong said.

So far, ‌the only company that has mastered reusable rocket technology is ‍SpaceX, founded by the world's richest ‍person Elon Musk. SpaceX's Falcon 9 launches around 150 times a year, or roughly ‍three times per week, with its booster reused dozens of times if necessary.

Musk said in October that LandSpace's Zhuque-3 design could allow it to beat the Falcon 9, but went on to state that the Chinese challenger's launch cadence would take more than five years to ​reach that of SpaceX's workhorse model, at which point the US firm would have transitioned to its heavier, new-generation model Starship and "doing over ⁠100 times the annual payload to orbit of Falcon".

INITIAL PUBLIC OFFERING

LandSpace's Dong said that, while the company was already building an engine for a future Starship-like model, he was not optimistic that in five years Falcon 9's work rate could be surpassed, noting that all rocket models in China combined this year totalled only around 100 launches.

"It's very difficult for a single company to reach that kind of frequency. It requires the support of an entire ecosystem," Dong said, adding that LandSpace had 10 launches planned next year for all its models.

Other executives have previously said that the financial cost of a high-frequency testing and launch regimen was crucial to SpaceX's success, and that LandSpace's only ‌hope of amassing enough funds to sustain a similar programme would be by tapping China's capital markets, pointing to plans for an initial public offering next year.

 

 

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Russia Plans a Nuclear Power Plant on the Moon within a Decade

November's full moon, also known as Beaver Moon, rises over Fort-de-France in the French overseas island of Martinique, on November 5, 2025. (AFP)
November's full moon, also known as Beaver Moon, rises over Fort-de-France in the French overseas island of Martinique, on November 5, 2025. (AFP)
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Russia Plans a Nuclear Power Plant on the Moon within a Decade

November's full moon, also known as Beaver Moon, rises over Fort-de-France in the French overseas island of Martinique, on November 5, 2025. (AFP)
November's full moon, also known as Beaver Moon, rises over Fort-de-France in the French overseas island of Martinique, on November 5, 2025. (AFP)

Russia plans to put ​a nuclear power plant on the moon in the next decade to supply its lunar space program and a joint Russian-Chinese research station as major powers rush to explore the earth's only natural satellite.

Ever since Soviet cosmonaut Yuri Gagarin became the first human to go into space in 1961, Russia has prided itself as ‌a leading power in ‌space exploration, but in recent ‌decades ⁠it ​has fallen ‌behind the United States and increasingly China.

Russia's ambitions suffered a massive blow in August 2023 when its unmanned Luna-25 mission smashed into the surface of the moon while attempting to land, and Elon Musk has revolutionized the launch of space vehicles - once a Russian specialty.

Russia's state space corporation, Roscosmos, ⁠said in a statement that it planned to build a lunar power ‌plant by 2036 and signed a contract ‍with the Lavochkin Association ‍aerospace company to do it.

Roscosmos said the purpose of ‍the plant was to power Russia's lunar program, including rovers, an observatory and the infrastructure of the joint Russian-Chinese International Lunar Research Station.

"The project is an important step towards the creation of ​a permanently functioning scientific lunar station and the transition from one-time missions to a long-term lunar exploration program," ⁠Roscosmos said.

Roscosmos did not say explicitly that the plant would be nuclear but it said the participants included Russian state nuclear corporation Rosatom and the Kurchatov Institute, Russia's leading nuclear research institute.

The head of Roscosmos, Dmitry Bakanov, said in June that one of the corporation's aims was to put a nuclear power plant on the moon and to explore Venus, known as earth's "sister" planet.

The moon, which is 384,400 km (238,855 miles) from our planet, moderates the earth's wobble ‌on its axis, which ensures a more stable climate. It also causes tides in the world's oceans.

Varieties

Seasonal Rains Transform Saudi Arabia’s Rawdat Muhanna into Natural Lake

People visit Rawdat Muhanna after recent rainfall. (SPA)
People visit Rawdat Muhanna after recent rainfall. (SPA)
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Seasonal Rains Transform Saudi Arabia’s Rawdat Muhanna into Natural Lake

People visit Rawdat Muhanna after recent rainfall. (SPA)
People visit Rawdat Muhanna after recent rainfall. (SPA)

Rawdat Muhanna, or Muhanna's Garden, located near the town of Al-Nabqiyah in the eastern part of Saudi Arabia’s Qassim region, has witnessed a notable influx of visitors and picnickers in recent days following rainfall that filled the Rawdat with water, transforming it into a vast natural lake.

The rare and striking scene has drawn residents and visitors from within and outside the region, reported the Saudi Press Agency on Tuesday.

Stretching over more than 10 kilometers, Rawdat Muhanna has become a breathtaking natural landscape amid the sands of Al-Thuwairat. The contrast between the blue waters and the red desert sand has created a picturesque panorama, making the site a favored destination for nature enthusiasts and photographers.

Rawdat Muhanna is one of the region’s prominent seasonal parks, as several valleys flow into it, most notably Wadi Al-Mustawi. These valleys contribute to the accumulation of large volumes of water, which in some seasons can remain for nearly a year, boosting the site’s ecological value and making it one of the most beautiful natural areas in the Qassim desert.

Visitors said Rawdat Muhanna has become an ideal destination for outdoor recreation and relaxation.