Physics in the World
A weekly pupil-friendly look at real physics discoveries, breakthroughs and applications. We take complex science, check reliable sources, and connect it to ideas you already meet in GCSE, AS and A Level Physics.
Latest featured brief
9 min read
Rare Particle Decay at CERN: What LHCb's One-in-Ten-Billion Result Means
What would count as evidence for something that happens about once in ten billion decays? LHCb's new result is a useful way into quarks, antiparticles and the problem of finding a small signal in a huge amount of data.
Read the briefExplore by topic
Weekly archive
Week beginning 2 November 2026
Rare Particle Decay at CERN: What LHCb's One-in-Ten-Billion Result Means
What would count as evidence for something that happens about once in ten billion decays? LHCb's new result is a useful way into quarks, antiparticles and the problem of finding a small signal in a huge amount of data.
Leonid Meteor Shower 2026 UK: When to Watch and What Shooting Stars Are
The Leonids return in November as Earth crosses a trail of comet debris. Here is when to try watching from the UK, what you might realistically see and why a tiny grain can make a bright streak across the sky.
Is It Cheaper to Leave the Heating On All Day? The Physics of Heat Loss
A house is not a flask that stays warm once it has been heated. Follow where its energy goes, why reheating does not automatically erase a saving, and why advice for a gas boiler cannot simply be copied onto a heat pump.
What Is a Superconductor? Zero Resistance and New Research Explained
A superconducting coil can carry a large current without ordinary resistive heating. That is useful, but it does not make an entire machine energy-free. Start with resistance, then see what this week's research adds to a much harder question.
Week beginning 26 October 2026
How Does the Large Hadron Collider Work? A Guide for Physics Pupils
The Large Hadron Collider gives particles energy, brings them into collisions and measures what comes out. Follow a proton around the machine to see how electric fields, magnets and detectors make that possible.
ATLAS Observes a Rare Way to Make Top Quarks at the LHC
ATLAS has identified a rare way of producing a top quark in earlier Large Hadron Collider (LHC) data. The useful questions are what a top quark is, what makes this interaction different and how researchers know the signal is there.
Week beginning 19 October 2026
Hunter's Moon 2026 UK: When to See October's Full Moon and Why It Looks Orange
October's full Moon is on Monday 26 October. You can look for it on the surrounding evenings without staying up for the exact moment. Here is what to watch for, why it may look orange and how to test whether it really looks bigger.
Why Are Fireworks Different Colours? The Physics Behind Bonfire Night
A firework display gives you two good physics questions: what makes the colours, and why do you see the flash before hearing the bang? Start with the simple explanation, then connect the display to photons and electron energy levels.
Do Solar Panels Work in Winter and on Cloudy Days? The Physics Explained
Yes, solar panels can generate electricity in winter and under cloud. The useful questions are how much light reaches them, for how long, and how much becomes electrical energy. Cold weather and low winter output are not the same thing.
Week beginning 12 October 2026
When Do the Clocks Go Back in 2026? Why UK Evenings Get Darker
At 2am on Sunday 25 October, UK clocks return to 1am. Here is what changes, what happens to sunset times, and why turning a clock back cannot change the amount of daylight.
Why Is There Condensation on My Windows? The Physics Explained
A wet window on a cold morning is a change of state happening in your home. Follow the water from the air to the glass, then see what temperature, ventilation and insulation each change.
ESA Hera Mission 2026: Can We Deflect an Asteroid?
NASA hit an asteroid with DART in 2022. ESA's Hera will examine the result up close. The useful physics starts with a collision, a change in momentum and the debris thrown out afterwards.
Can Light and Sound Exchange Energy? A New Optical-Fibre Experiment
An optical fibre can carry light and vibrations at the same time. New research shows a particularly strong interaction between them during a single pass. Here is what that means, starting with the waves you know from school.
Week beginning 5 October 2026
Why Do Black Holes Ring? Damped Oscillations and Quantum Cores
A black hole can send out a fading gravitational-wave signal after a merger. A new study asks how that signal might change if the black hole has a quantum-inspired core. To understand the idea, start with a damped oscillator.
Nobel Prize in Physics 2026 Explained: What Are Neutrinos and How Does IceCube Detect Them?
A neutrino is a tiny particle with no electric charge that rarely interacts with matter. Francis Halzen won the 2026 Physics Nobel for helping turn these elusive particles into a way of studying space. Here is how the detector works.
Week beginning 28 September 2026
Draconid Meteor Shower 2026 UK: Peak Date, Time and Where to Look
The Draconids peak on 9 October 2026 and are best watched after nightfall. You do not need a telescope, but you do need realistic expectations: this is usually a quiet shower.
Northern Lights UK: What Causes Them and How to Check the Forecast
A good aurora forecast is only part of the story. You also need darkness, clear skies and the right view. Here is how to read UK alerts and understand the light you are looking for.
Why Do Electric Cars Lose Range in Cold Weather?
An electric car has more jobs to do in winter, especially heating the cabin and managing its battery temperature. Cold batteries also behave differently. The energy has not simply vanished.
Week beginning 21 September 2026
Saturn Opposition 2026 UK: When and How to See Saturn's Rings
Saturn reaches opposition on Sunday 4 October. You can spot the planet without a telescope, but seeing its rings is a different challenge. Here is what to expect and the physics behind the view.
Orionid Meteor Shower 2026 UK: Peak Dates, Best Time and What to Expect
You do not need a telescope to watch the Orionids. You need a clear sky, patience and realistic expectations about the Moon. The shower also answers a good physics question: how can a tiny grain make such a bright streak?
NASA PRIMA Space Telescope: How It Differs from James Webb
NASA announced the next development step for PRIMA on 23 September. It is not a replacement for James Webb: it is designed to measure longer-wavelength infrared light and answer different questions.
How Do Heat Pumps Work in Cold Weather? The Physics of 300% Efficiency
A heat pump can supply more heat than the electrical energy it uses. The missing part of the explanation is an extra input: energy taken from outdoors. Here is how that still works when the air feels cold.
Week beginning 7 September 2026
Has Dark Matter Been Detected? What the LUX-ZEPLIN Result Really Means
One unusual event in an underground detector has put dark matter back in the headlines. Here is what was measured, what remains uncertain, and how school physics helps us judge the evidence.
How Does Regenerative Braking Work? Electric Cars, Trains and Energy Recovery Explained
An electric car can charge its battery while slowing down. Follow the energy from the wheels to the battery, and discover why regenerative braking is useful but cannot recover everything.
NASA Finds 84 Mysterious X-Ray Sources: What Are Hypersoft X-Ray Objects?
These objects stand out in one X-ray image and almost disappear in another. Their unusual light may help astronomers understand exploding stars and the gas between them.
BepiColombo Mercury Arrival 2026: Date, Mission and Why Reaching Mercury Is So Hard
Getting to Mercury is not simply a matter of pointing a rocket towards the Sun. BepiColombo has spent years reshaping its orbit so that it can stay beside a fast-moving planet instead of rushing past.
Week beginning 31 August 2026
Harvest Moon 2026 UK: When to See It and Why the Moon Looks Orange
Look east on the evening of Saturday 26 September. September's full Moon is a chance to see familiar physics at work: reflected sunlight, atmospheric scattering and an illusion you can test with a camera.
Roman Space Telescope Turns On Its Planet Imager: How a Coronagraph Works
A planet can be bright enough to detect and still disappear in its star's glare. Roman's newly activated coronagraph tackles that problem by controlling light, not simply by making a bigger picture.
Week beginning 24 August 2026
Why Does a Football Curve? The Physics of Free Kicks and the Magnus Effect
A football curves when an off-centre kick gives it spin. The spinning ball changes the airflow and pushes its wake sideways, so the air pushes back on the ball in the opposite direction. That sideways Magnus force continually changes the direction of the ball's velocity and bends its path.
Autumn Equinox 2026 UK: Exact Time, When Autumn Starts and Why Days Get Shorter
The 2026 autumn equinox occurs at 1:06am BST on Wednesday 23 September. It is the exact instant when neither hemisphere is tilted towards the Sun. It marks the start of astronomical autumn for many people in the UK, but day and night will not be exactly 12 hours each.
GCSE Physics Equation Sheet 2027: What AQA and OCR Pupils Get
Yes. Pupils taking AQA or OCR GCSE Physics and Combined Science exams in 2027 will receive a printed equation sheet. You do not need to memorise every equation, but you still need to choose, rearrange and apply them correctly. The official 2027 board downloads are due by 1 September 2026.
Roman Space Telescope Launch 2026: UK Time, How to Watch and What It Will Discover
NASA is targeting Sunday 30 August for the launch of the Nancy Grace Roman Space Telescope. Here is the UK launch time, where to watch, how Roman differs from Hubble and Webb, and how it will use infrared light, gravitational microlensing and a coronagraph to investigate exoplanets, dark matter and dark energy.
Week beginning 10 August 2026
GCSE Results Day 2026: Should I Take A-Level Physics?
GCSE results day can turn a provisional subject choice into a real timetable. A-level Physics is a strong option if you enjoy explaining how things work, can persist with multi-step problems and are willing to practise the maths.
A-Level Physics Results 2026: UK Grades, AS Trends and What to Do Next
UK A-level physics entries reached 45,800 in 2026, up 1.9% in a year. This guide gives the key grade figures and AS trend, explains what the progression data means, and sets out what to do if your result was not what you hoped for.
UK Partial Lunar Eclipse 2026: Time, Where to See It and Why the Moon Turns Red
Before dawn on Friday 28 August, Earth's shadow will cover most of the full Moon. The partial lunar eclipse is visible across the UK, reaching maximum at 05:12 BST while the Moon is low in the west-south-west.
UK solar eclipse 2026: what pupils will see and why it happens
On Wednesday 12 August, the Moon will cover around 90-96% of the Sun across the UK and Ireland. Here is when to look, why the eclipse happens, what the umbra and penumbra mean, and how to watch or photograph the low evening Sun without risking your eyesight.
Week beginning 3 August 2026
Nuclear fusion in metal foils: why quantum tunnelling matters at low energies
Experiments with deuterium-loaded palladium and titanium foils found that fusion yields stopped falling as expected below about 2 keV. The result suggests that a solid material can change the environment in which nuclei tunnel and react, although the absolute fusion rate remains far too small for power generation.
Why pressure can make electric-car batteries last longer
University of Cambridge researchers found that keeping lithium-ion pouch-cell electrodes under a carefully controlled stack pressure could double their cycle life. Too little pressure encouraged cathode cracking, while too much promoted lithium plating, so the result is about finding a narrow engineering balance rather than simply squeezing a battery harder.
How heat-transfer fins help phase-change materials store energy faster
Three-dimensional simulations show that several well-spaced fins can melt a phase-change material more effectively than one large fin. The reason is not just extra conduction: liquid in the gaps starts circulating and transfers energy, while fins placed too close together can interfere with one another.
Week beginning 20 July 2026
Euclid discovers the most ancient quasars: how redshift lets us see the early Universe
ESA's Euclid telescope has found 31 extremely early quasars, including the record-holder at redshift 7.77. Their stretched light shows how spectra and infrared observations let physicists study the young Universe.
Room-temperature quantum material controls quantum light on a chip
A Nature study reports a patterned gold-chip material that can sort and preserve selected quantum properties of light at room temperature, pointing to new photonic technologies without claiming a room-temperature quantum computer.
CERN sees a wake in quark-gluon plasma
CMS scientists at CERN have observed a diffusion wake left by fast quarks and gluons in quark-gluon plasma, giving physicists a new way to study matter that filled the Universe shortly after the Big Bang.
Week beginning 13 July 2026
Why AI data centres use so much electricity
AI is rapidly increasing data-centre demand, but the physics is clearer than the headlines: electrical power runs the processors, and nearly all of that energy ultimately has to leave the building as heat.
Tiny infrared chip could spot heat leaks and gases more clearly
MIT researchers have made a chip-based infrared device whose tiny pixels can be controlled independently, potentially helping compact cameras detect heat leaks, gases and atmospheric pollutants.
Scientists recreate rotating black-hole wave physics without a black hole
A CUNY team has used a stationary ring of rapidly modulated electronic resonators to reproduce rotational super-radiance: a wave can gain energy from effective rotation and leave amplified.
Week beginning 6 July 2026
Quantum computers model molten salt for fusion fuel
Oak Ridge National Laboratory, Cleveland Clinic and IBM have used a hybrid quantum-classical workflow to calculate how tritium interacts with FLiBe, a molten salt being studied for future fusion reactor blankets.
AI helps physics models predict rare extreme heatwaves
Researchers have combined fast AI weather forecasts with physics-based climate modelling so rare, dangerous heatwaves can be sampled more efficiently and studied with better statistics.
TESS discovers its first planet using gravitational microlensing
NASA's TESS telescope has found its first gravitational microlensing planet: a super-Jupiter nearly 40,000 light-years away whose gravity briefly magnified a more distant star.
Optical-fibre experiment reveals Hawking radiation backreaction
A fibre-optic analogue of a black-hole horizon has revealed a direct process for stimulated Hawking-like radiation and measured how that radiation changes the light field that produced it.
Week beginning 29 June 2026
Attosecond microscope tracks electron tunnelling in space and time
An ultrafast scanning tunnelling microscope has followed electron wave packets over attoseconds and atomic distances, revealing a 500-attosecond response delay and a practical space-time limit for electron imaging.
Single trapped ion maps tiny electromagnetic fields above a chip
ETH Zurich researchers moved one laser-cooled beryllium ion through three dimensions to map electric and magnetic fields above a chip, detecting oscillating fields as small as 10 nanovolts per metre.
Quantum computer simulates quark string breaking with 104 qubits
A 104-qubit IBM processor has reproduced string breaking in a simplified particle-physics model, showing how quantum hardware could eventually help physicists calculate the formation of hadrons after collisions.
Graphene hosts superconducting states strengthened by magnetic fields
Four- and five-layer rhombohedral graphene produced several zero-resistance states, including superconductivity that survived 8.5-tesla fields and became stronger under conditions that usually destroy electron pairing.
Week beginning 22 June 2026
European XFEL test shows electrons behave differently in warm dense matter
An experiment at the European XFEL found that a widely used model overestimated electron oscillation energies in hot, compressed aluminium by up to 25%, improving how physicists study planets, materials and fusion fuel.
Superallowed alpha decay seen for the first time
Physicists have directly observed the extremely fast alpha decay of tellurium-104, giving pupils a clear example of nuclear decay, half-life and quantum tunnelling.
Hubble sees an early galaxy clearing the Universe's hydrogen fog
Hubble observations of the early galaxy MXDFz4.4 show young stars letting ultraviolet light escape, helping explain how the early Universe became transparent.
Week beginning 15 June 2026
Quantum entanglement found in a centimetre-sized strange metal
Neutron-scattering measurements of a strange metal have revealed quantum entanglement spread through a much larger piece of matter than pupils might expect.
Quantum atom sensor clears a path to dark matter and gravitational wave searches
A prototype atom interferometer has shown how laser noise can be cancelled, making future quantum sensors more useful for fundamental physics.
CERN finds the missing member of a doubly charmed particle family
Physicists working with the LHCb experiment have observed a new particle made from two charm quarks and one strange quark.
Webb watches an exoplanet heat up during a close pass by its star
The James Webb Space Telescope has observed a giant planet on a stretched orbit as it is heated strongly by its star.
Week beginning 25 May 2026
Week beginning 13 April 2026
Thinking about where physics can take you?
Explore Physics Careers to find career clusters, employers and subject combinations that match your interests.