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Space

Atom & Cosmos

Dead stars may actually be a good place to hunt for life, plus organic-free asteroids and watery comets in this week’s news.

Life

DNA flaws can stack up as cancer grows

Acute myeloid leukemia progresses by accumulating various mutations, according to an analysis of one man’s disease over time.

Chemistry

Japan nuke accident seen from Seattle

Radioactive particles retrieved in the Pacific Northwest offer clues to events inside the crippled Fukushima Daiichi plant.

Earth

Major earthquakes not linked

Global seismic risks don’t rise following big events, scientists say.