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Humans’ effect on the polar ice sheets is slowing Earth’s rotation, posing challenges for its alignment with the official time standard. Two researchers discuss the science behind the slowdown and the impact it has on timekeeping.
Cutting-edge X-ray sources have enabled the structural dynamics of proteins to be tracked during biochemical processes, but the findings have been questioned. Two experts discuss the implications of a study that digs into this issue.
The analysis of DNA sequences sheds light on microbial biology, but it is difficult to assess the function of genes that have little or no similarity to characterized genes. Here, scientists discuss this challenge from genomic and microbial perspectives.
