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SciQuest

Follow the evidence. Understand the discovery.

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Choose the kind of evidence you want to read. Labels describe the study type, not whether a finding is true.

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More from SciQuest

Clear explanations of what scientists found, how they know and what remains uncertain.

Diagram placing lab-grown Asgard archaea strains HC1 and SC1 beside eukaryotes on the family tree, and comparing a simple HC1 cell with protrusions to a eukaryotic cell with nucleus and mitochondria

news Biology Evidence status: Peer reviewed · Laboratory cultures and genome analysis

Lab-grown Asgard archaea closest to eukaryotes are simple inside

Two newly cultured Heimdallarchaeia, the closest known archaeal relatives of eukaryotes, lack internal membranes. What that means for how complex cells began.

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How SciQuest reports

Interesting science is stronger when readers can inspect the evidence.

Our editorial standard requires every substantive story to identify what was observed, how it was measured, what researchers infer and what remains uncertain.

Read our editorial standards
  1. 01
    Find the primary evidence

    Start with the paper, dataset, mission record or official technical source.

  2. 02
    Test the central claim

    Check the method, numbers, scope, uncertainty and alternative explanations.

  3. 03
    Explain without inflating

    Make the significance clear while preserving limits and scientific context.

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Essential explainers

Durable answers with the numbers, the method and the caveats in one place.