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More than skin deep • Forget aesthetics, the reason to look after our skin should be health

New Scientist International Edition

1 Time to take off in style

Shedding light on dark energy • A map of 31 million galaxies could reveal the history of a mysterious cosmic force

Could Ozempic slow the progression of Alzheimer’s?

Will Brazil get COPs back on track? • The host of the next UN climate talks wants to foster a more collaborative approach

Get ready for the rise of the robots

The big suck begins • A US plant will pull carbon out of Earth’s atmosphere on a much greater scale

CRISPR pigs head to market • Pigs resistant to a common disease lead the way for gene-edited farm animals

The periodic table is due an ultra-heavy upgrade

Lunar invasion • Both government and commercial activity on the moon are set to increase in 2025

Not OK, computer? • Some prominent researchers argue that we should pay heed to the welfare of AIs. Are they right, wonders Alex Wilkins

Field notes from space-time • Through a glass, darkly Around the middle of 2025, the Vera C. Rubin Observatory will begin its mission to help us better understand the cosmos. Chanda Prescod-Weinstein can’t wait

Frozen planet • Michael Hambrey & Jürg Alean Papadakis Publisher

Restock your mind in 2025 • Understanding why we think the way we do is a hot topic for many of 2025’s books – that and finding new ways to re-evaluate old “truths”, says Simon Ings

From rocks to hard places

Smothered mothers

Evolution and other relationships

Best sci-fi for a great new year • A Ken Liu thriller, two Adrian Tchaikovsky novels, Succession-style drama (with added telepathy) and a Polish epic. Emily H. Wilson surveys 2025’s sci-fi

Your letters

The ultimate guide to skincare • Our skin may be the body’s outermost layer, but its role is far from superficial. Scientists are coming to realise that it can be implicated in a host of illnesses – and by keeping it in good condition, we may be able to improve our health. From creams to cosmetic “tweakments”, mindfulness to the microbiome, over the next nine pages we examine the evidence on the best ways to safeguard your skin.

Fact or fiction?

WHAT SHOULD WE BE EATING TO MAKE OUR SKIN GLOW?

DO ‘TWEAKMENTS’ IMPROVE OUR SKIN HEALTH?

HOW CAN WE BOOST THE SKIN MICROBIOME?

Backwards computing • To curb AI’s extraordinary energy demands, we need computers that run in reverse, says Karmela Padavic-Callaghan

Eyes on the skies • From auroras to partial eclipses of the sun, Leah Crane is planning out the astronomical events she will be watching next year

Puzzles

Almost the last word

Tom Gauld for New Scientist

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