Atoms

A widely shared statistic compares the pace of global warming to the energy of four Hiroshima atomic bombs being added to the climate system every second. The figure, promoted on a dedicated website, illustrates the sheer scale of excess heat trapped by greenhouse gases, mostly absorbed by the oceans. Commenters debate whether such dramatic analogies help communicate the urgency of climate change or risk numbing the public.

New analysis of surviving uranium cubes from Germany's wartime nuclear program indicates Nazi scientists were far from building an atomic bomb. The findings, reported by Science, suggest the German effort never came close to the critical mass of fissile material needed, reinforcing historians' view that the project lagged far behind the Manhattan Project.

The Bulletin of the Atomic Scientists has published an argument that warnings of catastrophic artificial intelligence rest on weak science while conveniently serving corporate interests. The piece contends that AI doomerism, rather than curbing powerful companies, actually helps them by shifting focus toward speculative existential risk and away from present harms, regulation and business practices.

A new precision experiment, described as an "atomic cannon," could test whether Einstein's theory of general relativity holds up under conditions never before measurable. By firing atoms and observing how they behave under gravity, researchers hope to detect deviations from Einstein's predictions. Physicists say the work could mark a significant step in the search for a deeper theory of gravity.

The Bulletin of the Atomic Scientists, the magazine behind the Doomsday Clock, argues that claims about artificial intelligence posing existential risks amount to bad science. The publication contends AI doomerism relies on speculation and analogies to nuclear weapons that do not hold up, and says the debate should be grounded in evidence rather than fear.

Researchers in Singapore have built what is described as the world's most accurate clock, a device so precise it would lose only one second over 260 billion years. The claim, reported by Yahoo News, has drawn attention as a landmark in timekeeping precision, far surpassing the accuracy of existing atomic clocks used for global time standards.

Researchers have proposed a new statistical ensemble for describing how fermions thermalise, refining the theoretical framework used to explain how interacting quantum particle systems reach equilibrium. The work could matter for studies of quantum many-body dynamics, cold-atom experiments and thermalisation in systems where standard ensembles fall short. Details of the proposal and its reception among physicists remain limited.

Nobel Prize-winning physicist Konstantin Novoselov, who shared the 2010 physics prize for isolating graphene, has given an exclusive interview. The conversation covers his views on the state of physics research and his pioneering work on graphene, the atom-thin material expected to shape future technology. Details of what was discussed have drawn interest from science followers.

Nikkei Asia argues that the atomic bombings of Hiroshima and Nagasaki hold a cautionary lesson for how the world governs artificial intelligence. The piece draws a parallel between humanity's delayed response to nuclear technology and the current race to manage AI risks, suggesting societies should build international safeguards before harm occurs rather than after.

Quotes attributed to the German theoretical physicist Arnold Sommerfeld are being shared and discussed on social media under science and philosophy hashtags. Sommerfeld, a pioneer of atomic theory and quantum physics mentor to several Nobel laureates, remains a popular figure for reflections on science. The engagement is modest, indicating a niche audience of physics enthusiasts.

Two young people from Malta met with survivors of the atomic bombings in Japan, according to Maltese broadcaster TVMnews. The encounter brought together Maltese youth and hibakusha, the survivors of the Hiroshima and Nagasaki attacks, reportedly as part of efforts to pass on firsthand testimonies of the bombings to a younger generation and promote peace and nuclear disarmament.

Researchers report that tin oxide deposited by atomic layer deposition improves perovskite solar cell performance, but only when the layer sits underneath the perovskite absorber rather than on top. The finding on layer order offers a practical guidance for cell architecture design, and is drawing attention in the solar energy field as perovskite technology moves closer to commercial deployment.

The International Atomic Energy Agency has issued Update 369, a statement from Director General Rafael Grossi on the situation in Ukraine. The regular briefings track nuclear safety and security at Ukrainian nuclear facilities, including the Zaporizhzhia Nuclear Power Plant, which has been under Russian occupation since the early months of the war and remains a persistent source of international concern.

Italy's Senate has given final approval to a law from Giorgia Meloni's government establishing a new framework for producing nuclear energy, nearly four decades after the country abandoned nuclear power following the 1987 referendum. The government plans to focus on new-generation nuclear technology. Supporters see it as a step toward energy security and lower emissions, while critics recall Italy's long-standing opposition to atomic power.

Muriel Howorth, a British enthusiast, founded the Atomic Gardening Association in 1959, recruiting hundreds of members who experimented with irradiated seeds in the hope of growing bigger, better plants. The story has resurfaced as a curiosity from the atomic age, when peaceful uses of nuclear technology captured the public imagination.

A decades-long design problem is drawing attention: how to warn people thousands of years from now about buried nuclear waste, when languages and civilizations may have vanished. Proposed solutions range from hostile architecture and eerie earthworks to atomic 'ray cats' bred to change color near radiation, with semioticians and physicists still debating whether any message can truly outlast time.

New analysis of uranium cubes from Germany's wartime nuclear program indicates Nazi Germany was far from building an atomic bomb. The findings, reported by Science, suggest the program lacked the material, scale and coordination needed to produce a weapon, reinforcing historians' view that the German effort never came close to matching the Manhattan Project.

The International Atomic Energy Agency says its director general is negotiating a new local ceasefire around the Zaporizhzhia nuclear power plant, following drone strikes near the facility. The UN nuclear watchdog has repeatedly warned that fighting near the Russian-occupied Ukrainian plant raises the risk of a nuclear accident. A limited truce around the site would aim to protect its safety and personnel.

Fifth Wall co-founder Brendan Wallace spoke with Forbes about Travis Kalanick's new venture Atoms and the wider future of property technology. Wallace discussed how technology is reshaping real estate and what the Uber co-founder's entry into the proptech space could signal for investors and the built world.

Physicists report a tabletop experiment using ultracold atoms to simulate the creation of particles, mimicking processes normally associated with quantum fields in extreme environments such as the early universe. By controlling atoms cooled to near absolute zero, researchers can reproduce conditions where quantum fluctuations turn into real excitations. The work, published by the American Physical Society, offers a new way to test fundamental physics that is otherwise out of reach of direct experiments.

The International Atomic Energy Agency has referred Iran to the UN Security Council, a formal move tied to concerns over Iran's nuclear activities and compliance with safeguard obligations. The referral puts the issue before the Council's fifteen members, where it could lead to resolutions, renewed pressure or further diplomacy over Tehran's nuclear programme.

A Nature retrospective revisits the 1966 Nobel Prize in Physics, awarded to Alfred Kastler for the discovery and development of optical methods for studying atomic spectra, work known as optical pumping. The piece highlights how the achievement rested on collaboration across laboratories and laid foundations for later developments in atomic physics and laser science.

Physicists have announced the most accurate atomic clock ever built, an advance so precise it could prompt a redefinition of the second itself. Reports say the clock's accuracy exceeds that of the current standard used to keep global time, marking a milestone in precision measurement and potentially reshaping how time is defined and kept worldwide.

The International Atomic Energy Agency has launched medical assistance for nuclear workers in Ukraine, offering support to staff operating the country's nuclear facilities during the ongoing war. The aid is aimed at protecting the health of workers who have continued running nuclear plants under difficult and dangerous wartime conditions.

Analysis of surviving uranium cubes from Germany's wartime nuclear program indicates Nazi scientists were nowhere close to developing an atomic bomb. The findings, reported by Science, reinforce the historical view that the German effort lagged far behind the Manhattan Project in scale, materials, and understanding.

Commentators are pushing back against the increasingly common comparison between today's artificial intelligence race and the Manhattan Project, the US programme that built the first atomic bomb. The Financial Times argues the analogy misleads: AI development is commercial, diffuse and competitive, unlike the secretive, state-run wartime effort. The debate reflects wider unease over framing AI as an existential, arms-race-style undertaking.

New analysis of surviving uranium cubes from Germany's wartime nuclear programme indicates Nazi Germany was never close to developing an atomic bomb. The findings suggest the country's research effort was too small, disorganised and under-resourced to produce a working weapon before the end of the Second World War.