Volume 592 Issue 7852



News Features

News & Views

Antimatter cooled by laser light p.27

A laser beam has been used to slow down antihydrogen atoms, the simplest atoms made of pure antimatter. The technique might enable some fundamental symmetries of the Universe to be probed with exceptionally high precision.

doi: 10.1038/d41586-021-00786-6

Gut microbes regroup to aid defence after infection p.29

Resident gut microbes can help to block infection, but the mechanisms involved are not fully understood. It has now been found that changes in the microbial community after infection boost the level of a molecule that combats harmful bacteria.

doi: 10.1038/d41586-021-00642-7

Atomic structure of a glass imaged at last p.31

The positions of all the atoms in a sample of a metallic glass have been measured experimentally — fulfilling a decades-old dream for glass scientists, and raising the prospect of fresh insight into the structures of disordered solids.

doi: 10.1038/d41586-021-00794-6

A new phase in meiotic cell division p.32

The exchange of DNA between pairs of chromosomes is key to sexual reproduction. It emerges that one step in this process — the introduction of DNA breaks by the enzyme Spo11 — relies on condensation of proteins into liquid-like droplets.

doi: 10.1038/d41586-021-00512-2