Volume 600 Issue 7888



News Features

News & Views

A peek into the black box of human embryology p.223

The molecular mechanisms involved in human gastrulation, a crucial stage in early embryonic development, have been largely elusive. Gene-expression data from a gastrulating human embryo shed light on this process.

doi: 10.1038/d41586-021-03381-x

Constraints on estimating the CO2 fertilization effect emerge p.224

Plants offset a large fraction of Earth’s carbon dioxide emissions, but estimating the size of this carbon sink relies on differing terrestrial-biosphere models. Combining multiple models with data has now reduced the uncertainty.

doi: 10.1038/d41586-021-03560-w

Clues that natural killer cells help to control COVID p.226

Natural killer cells can destroy cells infected by SARS-CoV-2, but this immune-system defence malfunctions in people with severe COVID-19. Will this finding drive a search for ways to reinvigorate natural killer cells in such cases?

doi: 10.1038/d41586-021-02778-y

Giant planet imaged orbiting two massive stars p.227

Direct imaging has revealed the existence of a large planet orbiting a binary system that contains the most massive planet-hosting stars detected so far. The discovery challenges existing models for how planets and stars form.

doi: 10.1038/d41586-021-03607-y

Cerebellar neurons that curb food consumption p.229

Artificial activation of neurons identified in a brain region called the cerebellum reduces food intake in mice. The findings could have implications for people with appetite disorders.

doi: 10.1038/d41586-021-03383-9