This Week in Science

Science's special section this week looks at the cell's nucleus. A news story chronicles the search for the spindle matrix, a still-hypothetical cellular structure that may underlie the spindle. Kristen Johansen and Jørgen Johansen have uncovered four matrix protein candidates and Yixian Zheng has isolated RanGTPase which triggers spindle formation in frog eggs.

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A fire at a Manchester hospital may have destroyed lab equipment and data, the Guardian reports.

Researchers generate a genetic database from skeletal remains from the 1845 Franklin Expedition to the Arctic, Live Science reports.

Researchers in China have begun another trial using CRISPR/Cas9 approaches in cancer patients, according to the Wall Street Journal.

In Science this week: human DNA found in sediments from archeological sites lacking bones, and more.