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Environment

Exclusive: Climate scientists expect attempts to dim the sun by 2100

An exclusive 91av survey of leading scientists reveals widespread concern that schemes to tweak Earth’s atmosphere could launch within decades in a risky bid to cool the planet

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solar activity

Space

Spacecraft used to forecast solar storm 15 hours before it hit Earth

News

The northern lights, or aurora borealis, in the UK in 2024

Space

Why auroras are so much brighter and more easily visible recently

Features

Technology

NASA and IBM built an AI to predict solar flares before they hit Earth

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Space

These images are the first time we have seen the sun's south pole

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Space

Amazing images reveal new details in the sun's atmosphere

News

Helios at the Bath Assembly Rooms, Jan 2025

Space

91av recommends Helios, Luke Jerram's giant sun sculpture

Culture

The Sun viewed on 29 January 2025 in the extreme ultraviolet range by NASA's Solar Dynamics Observatory (SDO) spacecraft. A vast 500,000 mile-wide coronal hole has opened in the sun's atmosphere. The area measures over 62 times the diameter of Earth and is now shooting high-speed solar wind toward Earth. When such solar activity is directed at Earth, the resulting geomagnetic storms can potentially disrupt satellite operations, power grids, navigation systems, and radio communications. There may also be spectacular displays of aurora caused as the Earth's magnetosphere is disturbed by the solar wind. According to spaceweather.com, this wind is estimated to hit Earth by Friday (31 Jan), resulting in G1 geomagnetic storm conditions.

Space

See huge coronal hole that opened up on the surface of the sun

News

The sun emitting a solar flare on 3 October 2024

Space

The sun may spit out giant solar flares more often than we thought

News

Parker Solar Probe will soon go deeper into the sun than ever before

Space

Parker Solar Probe will soon go deeper into the sun than ever before

On 24 December, the Parker Solar Probe will be the closest human-made object ever to a star, taking unprecedented measurements of the sun

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Space

Dazzling auroras lit up the skies in 2024 and we may see more in 2025

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Space

See the sun revealed in stunning glory by Solar Orbiter pictures

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Space

Twin spacecraft will launch to create an artificial solar eclipse

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Space

Tiny black holes hiding in the sun could trace out stunning patterns

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