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Fractal conceptual illustration of supersymmetry or superstrings. Supersymmetry (SUSY) is a particle physics theory that proposes a type of spacetime symmetry relating two basic classes of elementary particles: bosons, which have an integer-valued 'spin', and fermions, which have a half-integer spin. If supersymmetry is a true symmetry of nature, it would explain many mysterious features of particle physics and would help solve paradoxes such as the cosmological constant problem. There is only indirect evidence for the existence of supersymmetry, primarily in the form of evidence for gauge coupling unification. Direct confirmation would entail production of superpartners at collider experiments, such as at the Large Hadron Collider.

Space

A crisis in cosmology may mean hidden dimensions really exist

Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the possibility that our reality contains extra dimensions

Features

Space

NASA’s Artemis moon exploration programme is getting a major makeover

News

Space

How worried should you be about an asteroid smashing into Earth?

Analysis

From images taken by NASA spacecrafts, this picture mosaic was created of six of the planets in our solar system and the Earth's moon. In the foreground is the Earth rising over the lunar surface with the sun flare at the edge of Earth. Venus is the first planet above the moon, and at the top left to right are the planets Jupiter, Mercury, Mars and Saturn. Photo credits are as follows: Earth - Apollo 17; Lunar Surface - Apollo 8; Sun - Apollo 12; Venus - Pioneer Venus; Jupiter - Voyager I; Mercury - Mariner 10; Saturn - Pioneer 11.

Space

What to read this week: Ripples on the Cosmic Ocean by Dagomar Degroot

Culture

Astronauts practise tasks in simulated moon environment and underwater. Astronauts have been practising walking on the Moon as their next-generation spacesuit passes milestone testing. NASA astronauts and spacesuit engineers recently simulated lunar surface operations and tasks underwater wearing the new suits, built by Axiom Space, to demonstrate safety and mobility. The space agency reported Thursday (Feb 12) that the spacesuit has passed a contractor-led technical review and is hoped to be used for the Artemis III mission as NASA prepares to send humans to the Moon???s South Pole for the first time. NASA said:

Space

Amazing sneak peek of NASA's spacesuit tests as moon mission nears

Regulars

Illustration depicting a tidal disruption event (TDE). TDEs are causes when a star passes close to a supermassive black hole and get torn apart by the gravity of the latter. The debris forms a fan-shaped pattern around the black hole before eventually falling in.

Space

A new 'brief history' of the universe paints a wide picture

Culture

The weird rules of temperature get even stranger in the quantum realm

Physics

The weird rules of temperature get even stranger in the quantum realm

Comment

Dark Matter distribution

Space

The best map of dark matter has revealed never-before-seen structures

News

�鶹��ý’s guide to the 21 best ideas of the 21st century

Humans

�鶹��ý’s guide to the 21 best ideas of the 21st century

Features

tardigrades

Life

Giving astronauts tardigrade toughness will be harder than we hoped

The protein that protects tardigrade DNA from radiation and mutagenic chemicals was thought to be harmless, but can in fact have major downsides

News

Space

Distant 'little red dot' galaxies may contain baby black holes

News

Space

NASA is performing an unprecedented medical evacuation from the ISS

News

Comment

The science-fiction films to look forward to in 2026

Culture

Space

I'm calling it – 2026 is going to be the year of the galaxy

Comment