Science & technology | Well informed

The drug is hugely addictive but it does boost mental performance

A cigarette with the smoke in the shape of a brain
Illustration: Cristina Spanò

|3 min read

This article appeared in the Science & technology section of the print edition under the headline “What nicotine does to your brain”

From the September 20th 2025 edition

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NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft, secured to the mobile launcher

For the first time in half a century, astronauts are going to the Moon

They will not land. Others, both American and Chinese, soon may


The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq.

Should the Arctic be refrozen?

It is possible. But as an end in itself, it is not advisable


Well informed

How to get power naps right

It’s all in the timing

Satellites encased in wood are in the works

Timber is cheaper and better than alloys, and may be less polluting