
Nasa's Mars Perseverance snaps a selfie as a Martian dust devil blows by
Resembling a small pale puff, the twirling dust devil popped up 5km (three miles) behind the rover during this month's photo shoot.
Released on Wednesday, the selfie is a composite of 59 images taken by the camera on the end of the rover's robotic arm, according to Nasa.
It took an hour to perform all the arm movements necessary to gather the images, 'but it's worth it,' said Megan Wu, an imaging scientist from Malin Space Science Systems, which built the camera.
03:06
Babies on Mars? Dutch firm conducts space sex research
Babies on Mars? Dutch firm conducts space sex research
'Having the dust devil in the background makes it a classic,' Wu said in a statement.
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South China Morning Post
21 hours ago
- South China Morning Post
Hong Kong universities shine at Silicon Valley tech festival with record 51 awards
Hong Kong has achieved record-breaking success at a US technology innovation event, securing 27 gold medals, 16 silver and eight special prizes. The innovation team from Lingnan University emerged as the biggest winner in its debut at the 11th Silicon Valley International Invention Festival, held in Santa Clara, California, from Friday to Sunday last week. It received 13 awards – eight gold medals and five prizes spanning fields such as artificial intelligence (AI), smart manufacturing and smart transport. Joe Qin, the university president and chair professor of data science, who led the delegation to the festival, said the achievement reflected international recognition of the scholars' high-quality research. He added that the win, along with successes in other competitions, also highlighted the university's strength in knowledge and technology transfer on the global stage. 'We are committed to becoming a leading liberal arts research university in the digital era and will continue to fully support our researchers in their pursuit of scientific breakthroughs,' Qin said. Among the university's winning projects is an AI-based fencing training system, which analyses fencers' movements and provides personalised feedback through wearable sensors and deep learning techniques. It won a gold medal as well as the Prize of the International Federation of Inventors' Association.


AllAfrica
a day ago
- AllAfrica
Space race next: US, China rushing to nuclearize the moon
The first space race was about flags and footprints. Now, decades later, landing on the moon is old news. The new race is to build there, and doing so hinges on power. In April 2025, China reportedly unveiled plans to build a nuclear power plant on the moon by 2035. This plant would support its planned international lunar research station. The United States countered in August, when acting NASA Administrator Sean Duffy reportedly suggested a US reactor would be operational on the moon by 2030. While it might feel like a sudden sprint, this isn't exactly breaking news. NASA and the Department of Energy have spent years quietly developing small nuclear power systems to power lunar bases, mining operations and long-term habitats. As a space lawyer focused on long-term human advancement into space, I see this not as an arms race but as a strategic infrastructure race. And in this case, infrastructure is influence. A lunar nuclear reactor may sound dramatic, but it's neither illegal nor unprecedented. If deployed responsibly, it could allow countries to peacefully explore the moon, fuel their economic growth and test out technologies for deeper space missions. But building a reactor also raises critical questions about access and power. Nuclear power in space isn't a new idea. Since the 1960s, the US and the Soviet Union have relied on radioisotope generators that use small amounts of radioactive elements – a type of nuclear fuel – to power satellites, Mars rovers and the Voyager probes. Nuclear energy in space isn't new – some spacecraft are nuclear-powered. This photo shows the nuclear heat source for the Mars Curiosity rover encased in a graphite shell. The fuel glows red hot because of the radioactive decay of plutonium-238. Photo: Idaho National Laboratory, CC BY The United Nations' 1992 Principles Relevant to the Use of Nuclear Power Sources in Outer Space, a nonbinding resolution, recognizes that nuclear energy may be essential for missions where solar power is insufficient. This resolution sets guidelines for safety, transparency and international consultation. Nothing in international law prohibits the peaceful use of nuclear power on the moon. But what matters is how countries deploy it. And the first country to succeed could shape the norms for expectations, behaviors and legal interpretations related to lunar presence and influence. The 1967 Outer Space Treaty, ratified by all major spacefaring nations including the US, China and Russia, governs space activity. Its Article IX requires that states act with 'due regard to the corresponding interests of all other States Parties.' That statement means if one country places a nuclear reactor on the moon, others must navigate around it, legally and physically. In effect, it draws a line on the lunar map. If the reactor anchors a larger, long-term facility, it could quietly shape what countries do and how their moves are interpreted legally, on the moon and beyond. Other articles in the Outer Space Treaty set similar boundaries on behavior, even as they encourage cooperation. They affirm that all countries have the right to freely explore and access the moon and other celestial bodies, but they explicitly prohibit territorial claims or assertions of sovereignty. At the same time, the treaty acknowledges that countries may establish installations such as bases — and with that, gain the power to limit access. While visits by other countries are encouraged as a transparency measure, they must be preceded by prior consultations. Effectively, this grants operators a degree of control over who can enter and when. Building infrastructure is not staking a territorial claim. No one can own the moon, but one country setting up a reactor could shape where and how others operate – functionally, if not legally. Building a nuclear reactor establishes a country's presence in a given area. This idea is especially important for resource-rich areas such as the lunar south pole, where ice found in perpetually shadowed craters could fuel rockets and sustain lunar bases. These sought-after regions are scientifically vital and geopolitically sensitive, as multiple countries want to build bases or conduct research there. Building infrastructure in these areas would cement a country's ability to access the resources there and potentially exclude others from doing the same. Dark craters on the moon, parts of which are indicated here in blue, never get sunlight. Scientists think some of these permanently shadowed regions could contain water ice. 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The U.N. Committee on the Peaceful Uses of Outer Space sets guidelines to govern how countries act in outer space. Photo: United States Mission to International Organizations in Vienna, CC BY-NC-ND The United States has an opportunity to lead not just in technology but in governance. If it commits to sharing its plans publicly, following Article IX of the Outer Space Treaty and reaffirming a commitment to peaceful use and international participation, it will encourage other countries to do the same. The future of the Moon won't be determined by who plants the most flags. It will be determined by who builds what and how. Nuclear power may be essential for that future. Building transparently and in line with international guidelines would allow countries to more safely realize that future. A reactor on the Moon isn't a territorial claim or a declaration of war. But it is infrastructure. And infrastructure will be how countries display power – of all kinds – in the next era of space exploration. Michelle L D Hanlon is professor of Air and Space Law, University of Mississippi This article is republished from The Conversation under a Creative Commons license. Read the original article.


South China Morning Post
2 days ago
- South China Morning Post
China's new stealth launcher is aimed at space debris. Can it also be used as a weapon?
Chinese scientists have unveiled a projectile launcher for use in space – a device designed to remove dangerous debris orbiting the Earth but with potential to also be used as a weapon. The compact and stealthy device draws on the principle of gunpowder propulsion dating back to 9th century China, but brings it into the new space age It was jointly developed by aerospace engineers in Nanjing, Shanghai and Shenyang and unveiled last month in the peer-reviewed Chinese journal Acta Aeronautica et Astronautica Sinica. The projectile launcher (left) was designed to tackle the growing problem of orbital debris. Photo: Nanjing University of Science and Technology Unlike conventional guns that can produce blinding flashes, intense vibrations and clouds of debris, the new device creates no smoke, no light and little vibration when fired, according to the paper. This is achieved through a closed-gas, energy-absorbing mechanism. That means a capsule – containing a net for capturing debris – can be precisely launched towards its target without any harmful jolt to the launch platform, said the team led by Yue Shuai, associate professor of mechanical engineering at Nanjing University of Science and Technology. When the launcher is fired, a small charge ignites that generates high-pressure gas which drives a piston forward. A specially designed weak section then breaks at a predetermined pressure, releasing the projectile. A ring angled at 35 degrees meets the projectile near the muzzle, taking most of the kinetic energy and vibration to bend like a flower collapsing inwards.