Letters to the Editor

  1. Planetary Science

    Readers were curious about rogue planets, exomoons and more

    Readers had questions about rogue planets, human arrival in Australia, and exomoons.

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  2. Astronomy

    Inquiries about the moon’s twilight zone, and more reader feedback

    Readers had questions about the moon's tidal locking, quantum communication, microneedles and more.

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  3. Animals

    Readers fascinated by critters’ strange biology

    Readers responded to fish lips, monkey brains, sunless tanner and more.

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  4. Anthropology

    Readers question hominid family tree

    Readers sent feedback on hominid origins, fast cameras, slimy sea creatures and more.

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  5. Planetary Science

    Readers intrigued by Mars’ far-out birth

    Readers sent feedback on the Red Planet's formation, jumping genes and more

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  6. Climate

    Readers question climate’s freshwater effects

    Warming lakes, windmills for the Arctic, mosquito control and more in reader feedback.