John Jumper, who shared the 2024 Nobel Prize in Chemistry for co-developing AlphaFold, announced Thursday he is leaving Google DeepMind after nine years to join Anthropic. AlphaFold solved the protein-folding problem, the challenge of predicting how an amino acid chain folds into a three-dimensional structure, after fifty years of failed attempts. Since its 2020 release, the system has mapped the structures of more than 200 million proteins, covering most of the proteins known to science, and has accelerated drug discovery work for diseases including malaria and Parkinson's. Jumper has not announced his specific role at Anthropic, but the company has been building AI-for-science infrastructure this year, opening wet labs and forming partnerships with the Allen Institute for Biology and the Howard Hughes Medical Institute. The move adds a leading scientific figure to Anthropic as the company extends its work beyond language modeling.
AlphaFold, released by DeepMind in 2020 and updated in 2022, solved a problem structural biologists had worked on since the 1970s. Before AlphaFold, determining a single protein structure required months of X-ray crystallography or cryo-electron microscopy work. Jumper shared the Nobel with DeepMind CEO Demis Hassabis and David Baker, who developed a separate method for designing new proteins from scratch.
Norway announced a ban on generative AI use by students in grades 1 through 7, covering children aged 6 to 13, taking effect this fall. Students aged 14 to 16 may use AI only with teacher supervision; those 17 and older are encouraged to use it responsibly. Prime Minister Jonas Gahr Stoere argued that AI allows younger students to skip the foundational practice that builds literacy and numeracy, and that schools should refocus on reading, writing, and mathematics. The policy follows Norway's 2024 smartphone ban in schools, part of a government effort to reverse declining scores on international standardized assessments. Norway joins a small group of countries that have moved from enthusiasm about AI in education toward formal restrictions, particularly for younger children, where regulators worry that AI tools bypass rather than support skill development.
Norway's 2024 ban on smartphones in classrooms drew international attention and was credited by the government with improving classroom focus and teacher authority. The country's education authorities had also restricted TikTok and social media on school networks. The AI ban extends the same logic to generative tools like ChatGPT and Copilot.
Hyundai Motor Group completed its purchase of the remaining 9.65 percent stake in Boston Dynamics from SoftBank on Thursday, paying $325 million to make the Massachusetts robotics firm a wholly owned subsidiary. The deal values Boston Dynamics at roughly $3.4 billion, more than three times the implied valuation when Hyundai first bought a majority stake in 2021. SoftBank exercised a put option to exit entirely. Boston Dynamics is best known for Spot, a quadruped robot sold for industrial inspection, and Atlas, a humanoid robot scheduled for commercial deployment this year. Hyundai's plan is to embed robotics into its automotive manufacturing plants alongside electric vehicle production. The deal drew nearly 350 comments on Hacker News, where it was among the most-discussed tech stories of the day.
Boston Dynamics was founded at MIT in 1992 and became known through viral videos of robots doing parkour and gymnastics. Google acquired it in 2013, SoftBank bought it in 2017 for about $165 million, and Hyundai purchased a controlling stake in 2021 for $880 million. Spot is now sold commercially for industrial inspection; Atlas is being developed for factory floor tasks.
Israel and Hezbollah agreed Thursday to a renewed ceasefire brokered by the US and Qatar, after an exchange of fire that killed at least 47 people in southern Lebanon and four Israeli soldiers. The agreement took effect at 4 p.m. local time. US officials said the concern driving the deal was that continued fighting would destabilize the broader memorandum of understanding with Iran signed earlier this month. Hezbollah officials accused Israel of violating the agreement shortly after it went into force. The Lebanon front has remained active even as the US and Iran negotiated their deal. Israel's ongoing conflict with Hezbollah, which Iran funds and arms, was not addressed in the US-Iran agreement, leaving it as an unresolved flashpoint that has now produced two ceasefire negotiations in under a month.
Hezbollah, Lebanon's Iranian-backed militant group, opened a front against Israel in late 2023 in solidarity with Hamas following the October 7 attacks. A ceasefire brokered in late 2024 largely held until this year, when fighting resumed during the broader US-Iran military confrontation. Iran's ties to Hezbollah are one reason the US-Iran deal remains contentious — it does not constrain Iran's support for armed groups in the region.
The Trump administration announced Thursday it will cut approximately $400 million per year in HIV and AIDS funding to South Africa through PEPFAR, the American program that has been the world's largest bilateral HIV initiative since 2003. South Africa has more than 8 million people living with HIV, the highest number in any country, and relies on PEPFAR-funded clinics for antiretroviral treatment for millions of them. The stated rationale focuses on South African government policies the administration says inadequately protect the Afrikaner minority, the same reasoning behind its offer of refugee status to Afrikaners earlier this year. South Africa's health ministry said it had not been informed in advance and is working toward alternative funding, but no mechanism exists that could replace PEPFAR at that scale.
PEPFAR — the President's Emergency Plan for AIDS Relief — was launched under George W. Bush in 2003 and has provided more than $100 billion in HIV treatment and prevention globally. South Africa's HIV epidemic peaked in the early 2000s and has never been fully contained despite decades of treatment programs. The Trump administration cut PEPFAR funding to several countries in early 2025, citing foreign policy priorities.
Australia confirmed its first case of H5N1 bird flu on Friday, found in a brown skua at Cape Le Grand National Park in Western Australia, making Australia the last continent where the virus has now appeared. A second sick bird, a giant petrel, was also quarantined near the site. The finding marks an epidemiological milestone: H5N1, an avian influenza strain with a high fatality rate in humans and severe mortality in some wild animal populations, has spread continuously since a new wave began in 2021 to reach all seven continents. Australia had been considered a potential buffer zone because of its geographic isolation and strict biosecurity laws. Prime Minister Anthony Albanese said the government would take action to contain the strain. No human infections have been linked to the Australian outbreak.
H5N1 bird flu emerged as a significant strain in 1997 in Hong Kong. A new wave that began spreading through wild birds in 2021 has been far more extensive than earlier outbreaks, causing mass die-offs in seabirds, seals, and other wildlife on every landmass. Human cases remain rare but carry a fatality rate above 50 percent when they do occur.
All irrational numbers resist exact expression as fractions, but mathematicians have known for over a century that some resist it far more than others. A theorem proved by Dirichlet in the 19th century showed that every irrational number can be approximated by a fraction within a margin that shrinks with the square of the denominator. The golden ratio, roughly 1.618, turns out to be the hardest number to approximate this way, because its continued fraction representation consists entirely of 1s — the smallest possible partial quotients — causing fractions to converge to it more slowly than to any other irrational. This hierarchy is captured by the Lagrange numbers, an infinite sequence of mathematical constants measuring how well each real number can be cornered by fractions. A boundary called the Freiman constant, discovered in 1968, marks where the Lagrange spectrum shifts from a discrete countable set to a continuous range, and why it sits precisely there remains an open problem.
Continued fractions express any real number as an infinite sequence of integers. A number with small partial quotients, like the golden ratio, has rational approximations that converge to it slowly, making it hard to pin down with a fraction. Diophantine approximation, the branch of number theory studying this, connects to dynamical systems and theoretical computer science.
Trump visited a Boeing 747 at Joint Base Andrews on Friday that Qatar donated to the US government, calling it the most luxurious presidential aircraft ever built. Qatar gifted the jet, valued at approximately $400 million, as part of the deepening US-Qatar relationship during the Iran negotiations. The plane underwent a separate $400 million military overhaul to install secure communications systems and anti-missile defenses, receiving the designation VC-25B Bridge. Trump announced it would conduct a ceremonial flyover on July 4 as part of America's 250th anniversary celebrations. The gift ranks among the largest ever received by the US government from a foreign power. Critics have raised concerns about whether accepting it violates the Constitution's Emoluments Clause, which limits federal officials from receiving foreign government gifts without congressional consent.
The US Air Force currently flies two VC-25A jets as Air Force One, Boeing 747s delivered in 1990. Boeing contracted in 2018 to build two replacements, but the project has faced years of delays and cost overruns. The Qatar gift is intended to bridge that gap. Qatar has also hosted the US-Iran nuclear negotiations this year and maintains significant US military infrastructure including Al Udeid Air Base.
Leaders from more than 80 African and Caribbean nations gathered in Accra, Ghana for a three-day conference that concluded Friday with a 19-point declaration demanding formal apologies from former slave-trading powers, along with debt relief and financial reparations. Ghana's President John Mahama told delegates that recognition creates responsibility. The conference followed a March 2026 UN resolution designating the transatlantic slave trade as the gravest crime against humanity and calling for a reparations fund. Specific amounts and mechanisms were left to future negotiations, with the declaration framing apologies as a necessary first step before any material redress. The conference concluded the day after Juneteenth, the US federal holiday marking June 19, 1865, when enslaved people in Texas received news of emancipation — the last large group in the United States to hear it.
The transatlantic slave trade transported an estimated 12.5 million Africans to the Americas between the 15th and 19th centuries. Britain, France, Portugal, and the Netherlands were the main slave-trading nations. Reparations discussions have accelerated in recent years, driven by Caribbean nations and African Union member states pushing through international forums including the United Nations.
The Justice Department opened a civil rights investigation Thursday into Major League Baseball, examining whether the league engaged in religious discrimination during a San Francisco Giants Pride Night game. Three Giants pitchers, Landen Roupp, JT Brubaker, and Ryan Walker, wore rainbow caps inscribed with Bible verses and MLB disciplined all three for violating uniform rules. The DOJ's theory centers on a double standard: it noted that MLB allowed players to wear Black Lives Matter patches in 2020 but prohibited the Bible verse expression during Pride Night, arguing this constitutes viewpoint discrimination based on religion. Assistant Attorney General Harmeet Dhillon announced the probe. MLB has not commented publicly. The investigation fits a pattern of DOJ actions under the current administration targeting what it characterizes as inconsistent treatment of religious viewpoints relative to other protected expressions.
Pride Night games, where MLB teams wear rainbow gear in support of LGBTQ+ fans, have been held across the league since at least 2015. Some religiously conservative players have previously declined to wear the gear. In 2020, MLB briefly allowed Black Lives Matter patches following George Floyd's death. The Harmeet Dhillon-led Civil Rights Division has focused on what it calls viewpoint discrimination against religious expression since early 2025.
