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Two long-lost episodes of Doctor Who from the William Hartnell era, which had not been seen since 1965, have been released after being discovered in a private film collection. The episodes, 'The Nightmare Begins' and 'Devil’s Planet', are parts one and three of a mostly lost 12-part adventure called The Daleks’ Master Plan, written by Terry Nation, the creator of the Daleks, and broadcast as part of the third series of Doctor Who in November 1965.The episodes feature Peter Purves as the Doctor’s companion, Stephen. They were recovered by Film is Fabulous, a charitable trust dedicated to securing and preserving private film collections. The original 16mm telerecordings of the two Dalek episodes have been restored and made available on iPlayer in the UK.This discovery marks a significant milestone for fans, as it includes the first appearance of Nicholas Courtney in the show, playing Bret Vyon. Courtney later became a regular character, playing Alistair Gordon Lethbridge-Stewart, known as the Brigadier of Unit. 95 episodes of Doctor Who from the 1960s remain missing from the archives, having been wiped or junked by the BBC during the 1970s.

The increasing congestion of Earth's orbit with satellites is raising concerns about the environmental impact of space activities. A recent UN report highlighted the urgent need for sustainable practices to manage potential orbital congestion and environmental impacts.One of the most pressing issues is the risk of space debris, also known as 'space junk', which includes discarded rocket stages and defunct satellites. The surge in orbital activity has created a significant collision risk, and there have already been a handful of crashes. In 2007, a Chinese anti-satellite weapon test intentionally blew up a weather satellite, creating a dangerous cloud of space debris.Researchers fear that the impact of space activities on the ozone layer, which shields the planet from radiation, could be significant. A study found that roughly 10% of particles in the stratosphere contain metals that originated from space activities such as rocket launches.The Guardian has launched an interactive project to visualize the tens of thousands of human-made objects spinning around the globe. The project reveals a significant problem which, if left unchecked, could disrupt some of humanity's most important services such as the internet and weather prediction.As a global society, we rely on satellites constantly, not only to help us navigate around using Google Maps, but also to provide internet access and, critically, predict the weather. Space-based monitoring of the Earth also allows researchers to track deforestation, desertification, glacier and ice-cap melt, and the spread of oil spills.

SpaceX has submitted paperwork for an initial public offering that could debut as early as June or July, targeting a capital raise of $75 billion. If the market pricing aligns with analysts’ forecasts, the launch could lift the company’s valuation to nearly $1.5 trillion, roughly double its worth in December. Such a valuation would place founder Elon Musk on a clear trajectory toward becoming the planet’s first trillionaire, a milestone that would eclipse the $25.6 billion record set by Saudi Aramco’s 2019 IPO. Renaissance Capital’s data analyst Angelo Bochanis told Reuters that, much like Tesla, SpaceX’s market price will hinge on investor confidence in Musk’s long‑term vision. "Investors are clamouring for any exposure to SpaceX," he added. Despite Musk’s controversial public persona and his involvement in multiple high‑profile ventures, industry experts remain bullish. Kat Liu, vice‑president at IPOX, noted that SpaceX is "operationally mature, technologically ahead in several key areas, and profitable," providing a solid foundation for a public listing. The company’s recent merger with Musk’s artificial‑intelligence startup xAI and the continued dominance of its Starlink satellite network—now the world’s largest satellite communications platform—have reinforced investor interest. SpaceX’s ambitious roadmap includes a lunar base and a crewed Mars mission, though timelines remain uncertain. Musk has previously admitted a "50‑50 chance" of delivering an uncrewed Starship to Mars by the end of 2026. Financial data firm Pitchbook estimates the IPO could nearly double the company’s market cap, underscoring the scale of potential investor demand. If realized, the offering would not only reshape the space‑tech sector but also set a new benchmark for public market fundraising.

The Artemis moon mission is a landmark international project that embodies the spirit of unity and cooperation. Over 50 years ago, the Apollo astronauts' photographs of Earth from the moon had a profound impact on society, highlighting our planet's fragility and finiteness.This new mission, involving 11 nations and 61 countries that have signed the Artemis accords, aims to revive that sense of unity and shared purpose. The crew of Artemis II, comprising calm, curious, kind, and thoughtful individuals, will fly around the moon and take photographs of Earth from a distance, potentially streaming the experience live.The mission's commander, Reid Wiseman, emphasizes that "we are going as humanity," while astronaut Christina Koch notes that "any country that's interested in exploring, come, come along, be a part of this." Victor Glover, set to be the first African American to fly to the moon, adds that space exploration teaches us that "we're all brothers and sisters."As the Artemis astronauts prepare to experience the profound view of Earth from the moon, they are accompanied by a tiny silicon disc of goodwill messages from world leaders, placed on the lunar surface by the Apollo 11 crew. This message, from Eric Williams, then prime minister of Trinidad and Tobago, reads: "It is our earnest hope of mankind that while we gain the moon, we shall not lose the world."The Artemis mission has the potential to inspire a new generation and promote global cooperation, serving as a reminder that we are "riders on the Earth together."

David Attenborough’s voice returns to British screens in ‘Secret Garden’, a BBC One series launched to celebrate the network’s 100th birthday. Unlike his classic wildlife documentaries, the show turns the lens toward the UK’s own backyards, exploring how gardens can rival tropical rainforests in biodiversity.Series producer Bill Markham explains that the programme deliberately avoids the usual “lions and tigers” spectacle, aiming instead for a relatable, garden‑centred narrative. He notes that British gardens collectively cover more area than all national nature reserves combined, and that an average garden can host up to 2,600 different species.The series tackles the contentious issue of domestic cats. With 9.5 million pet cats in Britain, Attenborough reveals they may kill around 55 million birds each year. Simple measures—such as fitting cats with bells—can slash hunting success by one‑third, while raising bird feeders reduces fatalities further.Markham stresses that the current predator‑prey balance is “unfair on the prey”, noting that cats are “the biggest predator in our gardens” yet are constantly fed, leading to an unsustainable population. He cites ecologist Dr Davide Dominoni, who suggests that keeping cats indoors during the breeding months of April and May could dramatically lower bird deaths.Beyond cats, the series examines other garden‑linked wildlife challenges. Each year, over 30 million pheasants—an Asian species—are released into the countryside, where they prey on native insects, reptiles, and amphibians. Markham argues that despite the countryside lobby’s claim that pheasant shooting sustains rural jobs, the practice “mess‑es with the ecology”.‘Secret Garden’ also showcases rare footage, including a pine marten hunting sand martins, an otter preying on ducks, and intricate mayfly battles reminiscent of the famed “snakes vs. iguana” scene from Planet Earth II. These moments underline the hidden drama unfolding in everyday green spaces.Markham hopes the series will soothe the growing eco‑anxiety many feel about climate change. He points out that the UK boasts roughly 25 million gardens, with 80 % of the population having access. Simple actions—like planting a native tree to boost caterpillar supplies for birds—can make a measurable difference.While the show may provoke cat owners and countryside advocates, Markham believes the nation’s love for “animals, gardens and David Attenborough” will drive a collective re‑thinking of garden stewardship. As Attenborough reflects, his first encounter with nature likely occurred in his own garden, setting him on the path to becoming the world’s most renowned naturalist.‘Secret Garden’ airs from 5 April on BBC One and iPlayer.

The destruction of a US E-3 Sentry airborne warning and control system (AWACS) aircraft in an Iranian strike on a Saudi Arabian airbase has raised significant questions about how a critical surveillance asset was left unprotected and how Iran managed to launch such a precise direct strike.The plane was one of only 16 operational E-3s, which first entered production in the 1960s and carry sophisticated monitoring equipment allowing them to detect airborne threats such as missiles while surveilling assigned battle spaces including communications, troop movements, and air defense sites.The attack that destroyed the aircraft on March 27, while it was parked at Prince Sultan airbase, demonstrated Iran's continuing ability to strike high-value targets in the region despite a month of US and Israeli air raids.Images from the scene show a direct strike on the E-3's radar dome near the tail, suggesting a high degree of accuracy in the attack. The strike also injured US servicemen and damaged several in-flight refuelling aircraft.Ukraine's president, Volodymyr Zelenskyy, stated that Ukrainian intelligence had information indicating a Russian spy satellite photographed the base three times before the attack—on March 20, 23, and 25. Zelenskyy explained that multiple satellite images typically indicate preparation for an imminent attack.Zelenskyy's comments follow reports that Moscow was providing intelligence to Iran on the location of US forces in the Middle East, a claim denied by Russia's foreign minister, Sergei Lavrov.The destroyed E-3 was one of six such aircraft deployed to the Saudi Arabian base. These aging aircraft have long suffered from maintenance issues, with the US Air Force's E-3s reportedly having a mission-capable rate of only about 56% in 2024.The E-3 can track up to 600 targets simultaneously over a large area, acting as the eyes and ears for fighter pilots. The loss of this particular E-3 is considered incredibly problematic, as these aircraft serve as crucial battle managers for airspace deconfliction, aircraft coordination, targeting, and providing other lethal effects needed for battlefield operations.While US and Israeli commanders have claimed a decrease in Iran's missile capabilities, experts had anticipated a reduction in Tehran's launch intensity as it conserves military resources. Some analysts suggest Iran may be targeting key enablers of US airpower as part of a deliberate campaign following initial successes by the US and Israel in controlling Iranian airspace.

The recent open letter from 60 clergy members, addressed to the author, underscores a shared concern for planetary stewardship and acknowledges that human‑generated carbon emissions are warming the climate. However, the signatories and the author diverge sharply on the appropriate policy response. Marshall contends that an outright ban on fossil fuels is both impractical and ideologically driven, creating a collective‑action dilemma for the UK. He notes that while the nation pursues a rapid net‑zero transition, major emitters such as India and China operate on markedly different timelines, and the United States has withdrawn from the Intergovernmental Panel on Climate Change (IPCC). This leaves Britain navigating a path of unilateral economic disarmament. Industrial electricity rates in the UK have surged to two‑and‑a‑half to three times those in China and four times those in the United States. Such cost differentials are eroding the global competitiveness of sectors ranging from steel and oil refining to chemicals, automotive manufacturing, and emerging AI industries. The result, according to Marshall, is a wave of factory closures, investment pull‑backs, and significant job losses across the nation's industrial heartlands. Beyond macro‑economic concerns, the policy’s social toll is stark. Older and low‑income households are bearing the brunt of soaring energy bills, with an estimated 2,500 excess deaths last year attributed to an inability to adequately heat homes. This humanitarian impact, Marshall argues, contradicts the very notion of “human flourishing” that climate advocates champion. While acknowledging that every policy entails trade‑offs, Marshall warns that the clergy’s proposal would impose severe personal costs on working‑class Britons without delivering the promised climate benefits. He concludes that the current net‑zero trajectory is unlikely to curb global warming and instead jeopardizes the UK's economic vitality and social wellbeing. Paul MarshallChair, Marshall Wace; personal investor in GB News

Spain has taken a firm stance against the US-Israel war on Iran by closing its airspace to US military aircraft involved in attacks. This decision, confirmed by Defence Minister Margarita Robles, underscores Spain's position as a leading critic of the conflict in Europe. The move forces military planes, including those based in the UK and other European countries, to bypass Spain when heading to targets in the Middle East, except in emergency situations. This development comes after Spain denied the US permission to use its military bases for operations related to the war. “We don’t authorise either the use of military bases or the use of airspace for actions related to the war in Iran,” Robles stated, emphasising Spain's clear stance. She described the war as “profoundly illegal and profoundly unjust.” Spanish Prime Minister Pedro Sánchez has been vocal in his opposition to the war, calling for the US, Israel, and Iran to cease hostilities. His statements have previously drawn criticism from former US President Donald Trump, who threatened to cut off trade with Spain. The decision to restrict airspace access could potentially worsen Spain's already strained relations with the White House. However, Economy Minister Carlos Cuerpo reiterated that Spain's stance is part of its broader refusal to participate in or contribute to a war initiated unilaterally and against international law. While US military aircraft can still use Spanish bases for logistics support under a bilateral agreement, 15 American KC-135 refuelling planes were recently diverted from bases in Spain to those in France and Germany.

Donald Trump has issued a stark warning to Iran, threatening to "obliterate" its power stations and fresh water plants if a peace deal is not reached soon. This comes as the US and Israel's joint war against Iran enters its second month, with Tehran remaining defiant in the face of US peace proposals.The conflict has already had significant repercussions, including a record monthly rise in oil prices and concerns over a potential US ground operation to seize Kharg Island. Trump's threat to destroy civilian infrastructure, such as power and water facilities, has been condemned by human rights groups as a potential war crime.The White House has also suggested that Arab countries may be asked to help foot the bill for the war, adding a new dimension to the conflict. "It's an idea that I know that he has," said White House press secretary Karoline Leavitt.International pressure is mounting, with Spain closing its airspace to US planes involved in the conflict and the UK's prime minister reiterating that "this is not our war and we are not going to get dragged into it". Egypt's president, Abdel Fattah al-Sisi, has called on Trump to end the war, warning that "no one will be able to stop the war in our region".The conflict threatens to plunge the global economy into recession and trigger shortages of food and pharmaceuticals. The International Monetary Fund has warned that "all roads lead to higher prices and slower growth worldwide" if the conflict continues.