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  1. Planetary Science

    Apollo astronauts left trash, mementos and experiments on the moon

    Here’s what planetary scientists are learning from the remains of Apollo outposts, and how archeologists hope to preserve it.

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  2. Planetary Science

    Celebrate the moon landing anniversary with books that go beyond the small step

    New books about Apollo 11 and the mission to the moon offer something for everyone, from astronomy lovers to fans of graphic novels and self-improvement buffs.

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  3. Health & Medicine

    Tiny glasses help reveal how praying mantises can see in 3-D

    Newfound nerve cells in praying mantises help detect different views that each of the insects’ eyes sees, a mismatch that creates depth perception.

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  4. Tech

    This solar-powered device produces energy and cleans water at the same time

    Someday, the two-for-one machine could help curb electricity and freshwater shortages.

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  5. Earth

    3 questions seismologists are asking after the California earthquakes

    After back-to-back quakes, scientists are scrambling to figure out which faults ruptured and what it means for future California quake activity.

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  6. Artificial Intelligence

    Artificial intelligence has now pretty much conquered poker

    A new artificial intelligence called Pluribus is a real card shark at six-player no-limit Texas Hold’em.

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  7. Animals

    Southern right whale moms and calves may whisper to evade orcas

    Mother-calf whale pairs call to each other quietly to stay in touch while avoiding attracting the attention of predators, a study suggests.

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  8. Paleontology

    An ancient bird found encased in amber had a bizarrely long toe

    A 99-million-year-old fossil holds a bird with an oddly long toe, which might have helped the critter hook hard-to-reach dinners.

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  9. Planetary Science

    Hayabusa2 may have just snagged bits of asteroid Ryugu’s insides

    In its second sampling attempt, Hayabusa2 became the first spacecraft to try to pick up some of an asteroid’s guts.

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  10. Neuroscience

    Both fish and humans have REM-like sleep

    Sleeping zebrafish have brain and body activity similar to snoozing mammals, suggesting that sleep evolved at least 450 million years ago.

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  11. Anthropology

    A Greek skull may belong to the oldest human found outside of Africa

    Humans possibly reached southeastern Europe by 210,000 years ago.

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  12. Planetary Science

    See how visualizations of the moon have changed over time

    To celebrate the 50th anniversary of the moon landing, here’s a collection of images that show how the moon has been visualized over the ages.

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