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Jeremy Hansen, a Canadian astronaut on NASA's Artemis II flight, opened a live transmission on day three with the words "Bonjour tout le monde" while the Integrity spacecraft was about 125,000 miles (≈200,000 km) from Earth. This was the first recorded instance of the French language being spoken from deep space.Context: Weeks earlier, Air Canada CEO Michael Rousseau resigned after delivering a tribute video in which he used only two words of French, sparking outrage from Quebec’s francophone community (≈80% of the province’s population).Mission moment: Hansen’s greeting was captured on camera and later highlighted by Canadian parliamentarians as a historic linguistic milestone.Reactions: Former Bank of Canada governor Mark Carney praised Hansen, saying the French greeting was "incredible" and a source of pride for Canadians.Broader impact: Political scientist Stéphanie Chouinard noted that the effort, not perfection, resonated with francophones and reinforced the cultural importance of bilingual representation.Key takeaways:Symbolic repair: Hansen’s French salute acted as a public apology and cultural bridge after the Air Canada scandal.National identity: By speaking French from space, Hansen underscored Canada’s bilingual identity on a global stage.Educational value: The event highlights how language learning fosters broader worldviews, countering narratives that AI and technology diminish the need for multilingualism.Beyond the diplomatic applause, Hansen’s gesture also linked Indigenous perspectives—he referenced the Anishinaabe moon calendar and wore a mission patch designed by artist Henry Guimond—showing a layered commitment to Canada’s diverse cultural heritage.

The Guardian’s latest science podcast examines the worldwide campaign to wipe out Guinea worm disease, a parasitic infection that could become the second human disease ever eradicated after smallpox. Hosted in 2026, the episode highlights why the disease remains a focal point for public‑health leaders and what its elimination would mean for global health security.Guinea worm, transmitted through contaminated water, has been the target of an intensive eradication effort led by the World Health Organization and partners in endemic regions. The podcast underscores the progress made: cases have plummeted from millions in the 1980s to just a handful today, illustrating the power of coordinated surveillance, safe‑water interventions, and community education.Despite the gains, experts caution that complete eradication is not guaranteed. Residual hotspots in remote villages, logistical challenges in delivering clean water, and the need for sustained funding pose ongoing risks. The discussion stresses that a lapse in commitment could allow the parasite to rebound, undoing decades of progress.Historically, smallpox remains the only disease humanity has fully eradicated, a milestone achieved in 1980 after a global vaccination campaign. The potential success of the Guinea worm program would mark a watershed moment, demonstrating that eradication is feasible beyond vaccine‑preventable illnesses and could inspire similar initiatives for other neglected tropical diseases.Listeners are encouraged to support the effort through the Guardian’s science podcast platform, where additional resources and ways to contribute are provided. As the episode concludes, the hosts reiterate that the fight against Guinea worm is both a test of global solidarity and a template for future disease‑elimination campaigns.

North Korea has conducted a series of ballistic missile launches towards the sea off its eastern coast, as reported by South Korea and Japan. The incident occurred on Sunday, marking North Korea's seventh ballistic missile launch this year and its fourth in April.The missiles were fired near the city of Sinpo on North Korea's east coast at approximately 6:10 am local time on Sunday, equivalent to 21:10 GMT on Saturday. In response, South Korea has bolstered its surveillance posture and is closely exchanging information with the United States and Japan.According to Japan's government, the ballistic missiles are believed to have fallen near the east coast of the Korean Peninsula, with no incursion into Japan's exclusive economic zone confirmed. South Korea's presidential office has held an emergency security meeting to address the situation.These missile tests violate United Nations Security Council resolutions against North Korea's missile programme. However, North Korea rejects the UN ban, citing its sovereign right to self-defence.The launches come ahead of a summit between China and the US in mid-May, where Chinese President Xi Jinping and US President Joe Biden are expected to discuss North Korea. This development follows North Korea's recent assertion that its status as a nuclear-armed state is irreversible, with leader Kim Jong Un emphasizing the importance of expanding its "self-defensive nuclear deterrent" for national security.

In a groundbreaking achievement, a humanoid robot has shattered the world record at a Beijing half-marathon, showcasing the rapid advancements in Chinese technology. The robot, equipped with an autonomous navigation system and sponsored by Chinese smartphone maker Honor, completed the approximately 21km course in 50 minutes and 26 seconds, averaging a speed of about 25km/h (15.5mph).This remarkable feat surpasses the current men's world record of 57:20, held by Ugandan runner Jacob Kiplimo. The event, held in Yizhuang, Beijing, featured over 100 humanoid robots, a significant increase from last year's 20 entries. Spectators witnessed a range of robots, from highly agile ones mimicking famous runners like Usain Bolt to those with more basic capabilities.The rapid progress in robotics has sparked both excitement and concern among onlookers. Han Chenyu, a 25-year-old student, described the event as 'pretty cool' but also expressed worries about the potential impact on jobs due to advancing technology. Xie Lei, a 41-year-old observer, noted that humanoid robots could become integral to daily life within several years, potentially assisting with tasks like housework, elderly care, or dangerous jobs.The humanoid half-marathon aims to encourage innovation and popularize the technologies used in creating and operating such machines. The industry's strength is evident, with 73.5 billion yuan ($10.8bn) invested in robotics and embodied AI in China in 2025, according to a government agency study. As technology continues to advance, it raises questions about humanity's role and the potential for robots to surpass human capabilities in various fields.

Venice, a city renowned for its rich history and cultural heritage, is facing an unprecedented threat from rising sea levels. The Mose flood defence system, which was launched in 2020, has saved the city from potential flooding 154 times. However, despite its success, the city authorities are already seeking a plan B due to the accelerating sea level rise.The Mose system, which stands for modulo sperimentale elettromeccanico (experimental electromechanic module), was designed to protect Venice from frequent acque alte (high waters) caused by storm surges. The system consists of massive, luridly coloured flood barriers sunk into the seabed at three inlets between the lagoon and the Adriatic. The barriers have been effective in preventing flooding, but their frequent use is damaging the lagoon's ecosystem.Rising sea levels due to the climate crisis mean engineers are forced to raise the flood barriers more frequently, which encourages an excess growth of algae. When the algae die, they decompose, sucking out all the oxygen in the water and killing off fish and other marine flora. The tides create a natural exchange of water and sediment between the Venice lagoon and the Adriatic, but the raised flood barriers block the flow of water, leading to a deterioration of the lagoon's ecosystem.Andrea Rinaldo, the head of the scientific committee of the newly appointed Lagoon Authority, warns that an estimated extra metre of sea level rise by the end of the century represents a 'death knell for the city'. He stresses that immediate action is necessary to prevent the city's destruction. 'You won't have a lagoon. You won't have a city. And all of this could happen in a timeframe that is comparable with the time that we had to design and build the Mose.'The city authorities are exploring alternative solutions, including redirecting Venice's economy away from its reliance on tourism, which is a major threat to the city. Rinaldo plans to put out a global call for ideas from leading thinkers across various disciplines to devise a proposal for the city's future.

The Manx shearwaters have made their way back to the Isle of Man, a journey of 10,000km from their wintering quarters off Brazil and Argentina. The birds, which are named after the island, were spotted on the Langness peninsula on St Michael's Isle, a regular haunt for the species.The return of the Manx shearwaters is a significant event, especially given the challenges the species has faced in the past. A large shearwater colony on the Calf of Man, an island off the south-west corner of the Isle of Man, was devastated by rats from a shipwreck. However, after a rodent eradication programme by the Manx Wildlife Trust, numbers have rebounded to more than 1,500 breeding pairs.The Manx shearwaters are special birds for many, with their distinctive sweeping flight making them a prized sighting for birdwatchers. The birds will occupy their nest burrows on the Calf, raise a single chick, and then leave it in July or August to make the epic journey back to the southern hemisphere.

The Lead: Tesla's Texas Expansion Tesla is expanding its fully driverless operations, expanding its robotaxi service to Dallas and Houston to join Austin as the third Texas market. Despite the rollout, the fleet size appears significantly smaller than in Austin, and safety metrics remain a critical point of scrutiny following 14 reported crashes in the initial market.The Event Details: Rolling Out in Dallas & Houston Tesla announced the expansion via social media, confirming that "Robotaxi is now rolling out in Dallas & Houston 🤠." The company released a video demonstrating vehicles navigating city streets without human monitors or drivers in the front seat. This move marks a significant step in Tesla's broader strategy to transition from a traditional automaker to a mobility-as-a-service provider, building upon the foundation established in Austin.Fleet Size Disparity: Austin vs. New Markets While the expansion is a strategic milestone, the scale of deployment reveals a stark contrast between markets. Crowdsourced data from the Robotaxi Tracker indicates that while Austin hosts 46 active vehicles, only a single vehicle is currently registered in both Dallas and Houston. This suggests that Tesla is prioritizing infrastructure and regulatory approval in its home state before aggressively scaling the fleet to new territories.Safety Implications and Regulatory Scrutiny The expansion comes at a time when safety remains a major hurdle for autonomous vehicle (AV) companies. A February filing revealed that Tesla's robotaxis in Austin have been involved in 14 crashes since the service launched. As Tesla pushes into major metropolitan areas like Dallas and Houston, regulators are likely to intensify their oversight, potentially demanding higher safety standards or clearer liability frameworks for fully driverless rides.The Future of Fully Autonomous Mobility The Dallas and Houston expansion signals Tesla's intent to dominate the autonomous driving market in the South. However, the disparity in fleet numbers suggests a cautious approach. We can expect Tesla to focus on optimizing its software and safety protocols in these new cities before a wider rollout. Ultimately, the success of this expansion will hinge on whether Tesla can reduce the accident rate in its existing markets to gain public trust and regulatory approval in high-density urban environments.

President Donald Trump signed an executive order on Saturday in the Oval Office, joined by podcaster Joe Rogan, to fast‑track the federal review of psychedelic drugs such as ibogaine, aiming to broaden treatment options for serious mental illness.The ceremony highlighted Rogan’s long‑standing advocacy for ibogaine, a plant‑derived compound used by some veteran groups to address post‑traumatic stress. Rogan recounted texting Trump about the drug, to which the president replied, “Sounds great. Do you want FDA approval? Let’s do it.”Trump framed the order as a lifeline for patients: “Today’s order will ensure that people suffering from debilitating symptoms might finally have a chance to reclaim their lives and lead a happier life.” He added that successful outcomes could have “a tremendous impact.”In a brief moment of levity, Trump joked, “Can I have some, please? I’ll take some.” He quickly refocused, noting he has no time for depression and stays busy instead.The move enjoys rare bipartisan backing, despite ibogaine and other psychedelics remaining classified under the federal government’s most restrictive drug schedule.Health Secretary Robert F. Kennedy Jr. had previously pledged to ease medical access to psychedelics, a stance echoed in the new order, which directs the Department of Health and Human Services to allocate at least $50 million to states developing programs for serious mental‑health conditions.Simultaneously, the FDA is set to issue “national priority” vouchers for three psychedelic candidates. Commissioner Marty Makary said the vouchers will enable rapid approval “if they align with our national priorities.”The agency also plans the first human trials of ibogaine in the United States, overcoming earlier concerns about potential fatal heart effects.Ibogaine’s origins trace back to the Bwiti religious ceremonies in West‑Central Africa, where the plant has been used for centuries in spiritual contexts.Former Navy SEAL Marcus Luttrell, also present at the event, praised ibogaine, stating, “It absolutely changed my life for the better.”Rogan’s endorsement and the executive order have added a new dimension to Trump’s 2024 campaign narrative, even as he has publicly questioned the administration’s stance on the war with Iran.

Moroccan authorities have been criticized for their handling of Sudanese refugees attempting to cross into the country. The refugees are facing significant bureaucratic hurdles that are preventing them from seeking safety.The situation highlights the complexities of refugee crises in North Africa, where migrants often find themselves trapped between borders and struggling with administrative challenges.