Predicting the risk of extinction from climate change requires an understanding of the interactions between species. An analysis of how changes in rainfall affect competition between plant species offers a way of tackling this challenge.

An optical clock based on a highly charged ion has been demonstrated for the first time. The results pave the way for extremely accurate highly charged-ion clocks that could have applications in both timekeeping and the further exploration of fundamental physics.

It has not been clear how sperm DNA is compacted in the pollen of flowering plants. Research has now revealed that sperm chromatin, which is a complex of DNA and proteins, is packaged by a special histone protein that spontaneously aggregates in a phenomenon known as phase separation.

Shining a laser on an iron wire generates fast-moving electrons that boost the electromagnetic waves created by the light interacting with the wire. This way of making laser-like light could surpass existing methods that use electrons.