Explainer

Women are increasingly using anabolic steroids, driven by rising participation in strength sports, social media influence, and encouragement from peers or coaches. This shift raises health concerns, with unique risks for women, prompting calls for targeted education, stigma-free healthcare, and better online harm-reduction strategies

New Zealand’s plan to add feral cats to its Predator Free 2050 target marks a major cultural shift, raising ethical and welfare concerns. While feral cats are classified as pests, their overlap with domestic cats complicates control methods and sparks wider debates about human–animal relationships

President Donald Trump intensified anti-immigrant rhetoric, calling Somali immigrants “garbage” during a Cabinet meeting. His statements, echoing past xenophobic language, target asylum seekers, refugees, and Rep. Ilhan Omar, drawing domestic and international condemnation while influencing U.S. immigration debates and Republican supporters

American zoologist Laurie Marker has maintained a cheetah sperm bank in Namibia for 35 years, preserving genetic diversity as wild populations drop to under 7,000. The bank serves as a last-resort conservation tool to prevent potential cheetah extinction

A new study shows coral reefs have regulated Earth's climate and marine evolution for over 250 million years. Reef growth and collapse affected ocean alkalinity, carbon absorption, and plankton evolution, revealing long-term climate recovery processes relevant to modern CO₂ increases

Severe, late-season storms and heavy rains have unleashed deadly floods across Southeast Asia, overwhelming governments and exposing weak preparedness. Scientists warn these increasingly destructive, unpredictable events reflect a climate-driven “new normal,” with rising losses, vulnerable communities hit hardest, and adaptation funding still insufficient

India has mandated active SIM linkage for messaging apps such as WhatsApp, Telegram and Signal, citing rising digital fraud. While telecom operators have welcomed the move for enhancing traceability, major tech firms have urged the government to pause implementation and review legal concerns

Israeli Prime Minister Benjamin Netanyahu has requested a presidential pardon to halt his years-long corruption trial, citing national security demands. Critics warn the move threatens judicial independence and reflects his efforts to secure political survival ahead of elections expected next year

A study of 738 UK harbour porpoises (1990–2021) shows mercury levels rising about 1% annually, nearly doubling since the 1990s. Higher mercury burdens increased the risk of death from infectious disease, revealing persistent ocean contamination despite the Minamata Convention

International enrolment at US colleges dipped slightly this fall, but new foreign student arrivals plunged 17% amid visa delays and policy tightening under the Trump administration. Graduate programmes were hit hardest, straining budgets, while other countries ramped up efforts to attract students

Recently released House Oversight Committee emails reveal Jeffrey Epstein maintained extensive ties with global political figures, academics and business elites long after his 2008 conviction. The messages show exchanges on politics, introductions and personal advice, highlighting his persistent influence until his 2019 arrest

President Donald Trump signed a funding bill ending a 43-day US government shutdown that strained workers and divided Congress. The compromise funds key agencies, restores worker protections, and delays the Affordable Care Act subsidy debate, leaving healthcare and tax credit disputes unresolved

China is rapidly advancing toward its first crewed lunar landing by 2030, developing new spacecraft, rockets, and spacesuits. Its steady progress rivals NASA’s Artemis program, raising geopolitical stakes and highlighting Beijing’s growing technological, strategic, and symbolic ambitions in space exploration

New York’s newly elected mayor, Zohran Mamdani, faced online ridicule for eating with his hands, exposing lingering colonial hierarchies around race, civility, and culture. The controversy sparked debates on identity, diaspora hypocrisy, and how colonial-era notions of refinement still shape global attitudes

China has officially commissioned its third and most advanced aircraft carrier, *Fujian*, designed and built domestically. Featuring an electromagnetic launch system, the carrier marks a major leap in Beijing’s naval power and global ambitions as it seeks to rival US maritime dominance

‘Vibe coding,’ coined by AI expert Andrej Karpathy to describe creating software through natural language, was named Collins Dictionary’s Word of the Year 2025. The term highlights AI’s accessibility and impact, alongside trending words like glaze, aura farming, and biohacking

A global study published in *Science* reveals that agricultural drones are transforming farming worldwide, spreading rapidly from East Asia to the US. Used for spraying, seeding, and monitoring, drones boost efficiency and safety but risk displacing workers and causing environmental concerns

US President Donald Trump has ordered the Pentagon to resume nuclear weapons testing, risking a renewed global arms race. The move threatens the Comprehensive Nuclear Test Ban Treaty, raises environmental concerns, and comes amid rising proliferation and stalled arms-control negotiations

King Charles has stripped Prince Andrew of all royal titles following the release of Virginia Giuffre’s posthumous memoir Nobody’s Girl, detailing her abuse by Jeffrey Epstein and others. Giuffre’s revelations reignited global outrage, exposing systemic failures and prompting renewed calls for accountability

South Korea hosts the APEC summit amid global trade tensions driven by U.S. President Trump’s tariff policies. The meeting is expected to be overshadowed by Trump–Xi talks, as Seoul seeks to balance ties while promoting free trade, AI cooperation and economic stability

Stem cells offer medical promise, but their capabilities vary. Adult, embryonic and induced pluripotent stem cells each have strengths and limits. While therapies exist for blood diseases, broader treatments need rigorous research, regulation and public trust to distinguish genuine advances from unproven hype

Pressure mounts to end the prolonged US federal shutdown as millions risk losing food assistance, federal workers miss pay, and travel delays worsen. Lawmakers remain deadlocked over health care demands, leaving service members and SNAP beneficiaries facing severe uncertainty

FutureGuessr, a free online game launched in 2025, uses AI-generated images to show how locations might look in 2100 due to climate change. It blends fun with climate education, inspiring awareness, conversations and collective action on environmental impacts and sustainable game development

Astronomers at the Indian Institute of Astrophysics have discovered that radiation and jets from supermassive black holes suppress star formation in galaxies. Studying 538 active galactic nuclei using optical and radio data, the team confirmed black hole activity regulates galactic evolution and growth