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Astronomers express outrage after regulators approve ‘space mirror’ permit

Super-loud gravitational waves offer a new way to study black hole event horizons

Region near the "surface of no return" was previously only accessible with theoretical models

Artist's impression of the region of space around a black hole's event horizon. A doughnut-shaped region of space warps and blurs the starry black background

First medical X-ray images taken in space achieve diagnostic quality

Diagnostic X-ray images recorded during an orbital spaceflight exhibited similar contrast and spatial resolution to those taken preflight on Earth

Latest news

Vera C Rubin Observatory kicks off 10-year quest to map the cosmos

Jessica Dempsey takes up post as head of the Square Kilometre Array Observatory

Dark energy survey unveils the largest 3D map of the universe

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Research headlines

Metasurface grating gives solar telescopes a boost

Photo of a person's gloved hand using tweezers to hold a transparent disk that contains a greyish circle 6 mm across, as shown by a 25 mm scale bar superimposed on the photo

Satellite-based sensor system designed to detect nuclear weapons in space

Powerful cosmic winds may have destroyed galaxies in the early universe

Artist's impression of a galaxy with a huge plume of gas blowing out of it. The galaxy appears as a cluster of bright light against the blackness of space, and dark purple jets are coming out of either side of it

Does the Bullet Cluster contain a lot less dark matter than we thought?

New analysis of JWST observations suggests that the Bullet Cluster of galaxies might only have half as much dark matter as previously believed

Can we create a shield to protect Earth from solar storms?

A space-based system could help deflect potentially catastrophic interplanetary weather

Cosmic crisis averted as supernovae put dark energy back on track

New study confirms accelerating expansion of the universe

Soot from rocket launches is polluting Earth’s upper atmosphere

Problem set to worsen as launch numbers increase, say UCL researchers

Asymmetric weather pattern reveals exoplanet’s true atmosphere

New observations by the JWST provide a much clearer understanding of clouds on a distant world

Novel gravitational-wave model sheds light on dark matter

Dark matter may alter the dynamics of colliding black holes and leave a signature in their gravitational-wave emission.

Explore more in astronomy and space

**‘Amaze, amaze, amaze’: in Project Hail Mary, science and friendship save the day**

Andrew Glester and Tushna Commissariat delve into the science and story of Project Hail Mary

Spaceships from the movie Project Hail Mary

Ken’ichi Nomoto and Stanford Woosley share the 2026 Shaw Prize in Astronomy

Pair are honoured for their work on supernovae and nucleosynthesis

Photos of Ken’ichi Nomoto and Stanford Woosley

Soviet institutes, Martian neighbours, Whovian science, stellar patterns and dystopian predictions: micro reviews of recent books

Condensed natter: Physics World editors give their compressed verdicts on top new books

A mosaic depicting five scientists on the wall of a science facility

‘Galactic archaeologists’ share the 2026 Kavli Prize in Astrophysics

Laureate Amina Helmi and Per Barth Lilje of the prize committee are our guests

Photos of Amina Helmi and Per Barth Lilje

Back to the Moon: inside the Artemis II mission

Exploring the first crewed Artemis mission, the future of lunar exploration and how spaceflight could help inspire greener technologies on Earth

Artemis crew taking part in an integrated ground systems test at Kennedy Space Center in Florida

Building a better laser on the Moon

Ultrastable devices could be housed in dark lunar craters

Radio gaga: surfing the long wavelengths of the universe

Benjamin Giblin reviews Radio Universe: How to Explore Space Without Leaving Earth by Emma Chapman

Several large telescopes on a snowy mountain plateau with a person walking past in the foreground

Earth’s magnetic field could be ‘ringing’ with dark matter

Existing magnetometer measurements constrain dark-matter properties

Gravitational waves could leave traces in light from cold atoms

New theoretical work suggests that the pattern of light emitted by atoms could be used to detect gravitational waves at frequencies outside the range of traditional detectors

Artist's illustration showing two black holes coming together and emitting gravitational waves that radiate outwards, warping a grid of space-time as they go. In the foreground, little Bohr-model atoms are emitting different colours of light in different directions, and a graph below is keeping track of the emissions. Everything is set against a background of stars and glowing gas.

Thumbs up to Artemis II: a jigsaw puzzle

Can you reconstruct the space image we’ve pulled apart?

Four astronauts floating in a space capsule holding thumbs up and smiling

One giant leap: Artemis II returns humanity to the Moon

Artemis II has returned humanity to the Moon, gripping the whole world. Keith Cooper follows the mission’s journey and looks at what comes next for humans in spa...

Orion module in foreground with the Moon behind and then in the far distance a crescent of Earth

Gap in neutrino energy spectrum raises questions about cosmic environments

New analyses by the IceCube observatory could help scientists understand where neutrinos form and what is producing them

A photo of a detector buried deep in solid ice, connected to the surface by a cable

Evidence for a ‘forbidden range’ of black hole masses emerges in gravitational wave observations

Stars in this range may form a long-predicted type of supernova instead

Artist's impression of a star exploding. The star is a bright blue spiky burst of light, and it appears against a star-dotted black background. Two circular areas of the background, representing a black hole binary, are completely black and starlight is warped around them.

Newton’s law describes gravity on cosmological scales, galaxy clusters reveal

Observations appear to rule out MOND, but not everyone agrees

Gravitational effects could shed more light on the Hubble tension

Two new ways to measure the Hubble constant

NASA launches crewed Artemis II mission to the Moon

Craft will conduct a flyby of the Moon before returning to Earth

Perseverance finds evidence for an ancient river delta on Mars

New analyses of the Jezero impact crater reveal signs of flowing water

Image data of the potential Martian delta

Exploring the astrophysics behind Project Hail Mary

Author Andy Weir and astrophysicist Becky Smethurst unpack the physics in the new Hollywood space epic

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Particle and nuclear | Workshop 26th Hellenic School and Workshops on Elementary Particle Physics and Gravity 19 April — 21 September 2026 | Corfu, Greece
Astronomy and space | Meeting UK Space Weather and Space Environment Meeting IV 14—17 September 2026 | Newcastle-upon-Tyne, UK
Astronomy and space | Conference Eighth Spacetime Conference 14—17 September 2026 | Albena, Bulgaria

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