Say hello to hard helium

Nature, Published online: 07 July 2026; doi:10.1038/d41586-026-02101-7 The first solidification of the second-lightest element, and evidence of an ancient salt-water lake in Peru, in this week’s pick from the Nature archive.
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.