91av

91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

solar eclipse 2026

On 12 August 2026, a total solar eclipse will be visible from Greenland, Iceland and northern Spain, making it the first to pass over mainland Europe since 1999. Our stories cover all you need to know about eclipses, from how to make the most of this magical moment to how total solar eclipses have shaped human history.
artist's concept of comet 41P

Space

We’ve caught a comet switching its spin direction for the first time

A small comet has been spotted slowing down and then speeding up again – but in the opposite direction, which we have never seen before

News

Environment

Plug-in solar is coming – how dangerous is it and is it worth it?

News

Space

Earth may have formed from two separate rings around the sun

News

Space

Mysterious comet disintegration caught by telescope after lucky break

News

Space

We’ve spotted a huge asteroid spinning impossibly fast

News

Space

NASA changed an asteroid's orbit around the sun for the first time

News

Space

How to see six planets in the sky at once in rare celestial alignment

News

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

Space

Saturn’s rings may have formed after a huge collision with Titan

News

Environment

This state’s power prices are plummeting as it nears 100% renewables

South Australia is proving to the world that relying largely on wind and solar energy with battery back-up is incredibly cheap, with electricity prices tumbling by 30 per cent in a year and sometimes going negative

News

Space

Synchronised volcanic eruptions on Io hint at a spongy interior

News

Space

Mars's gravity may help control Earth’s cycle of ice ages

News

Space

Our solar system is extremely weird: Best ideas of the century

Features

Technology

Passwords will be on the way out in 2026 as passkeys take over

News

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop