Vol. 204 No. 1
Download PDF Modal Example Archive Issues Modal Example

Reviews & Previews

Science Visualized



More Stories from the July 15, 2023 issue

  1. Life

    1.6-billion-year-old steroid fossils hint at a lost world of microbial life

    Molecular fossils suggest the existence of a lost world of primitive eukaryotes that dominated aquatic ecosystems from at least 1.6 billion to 0.8 billion years ago.

  2. Astronomy

    Alien life may be possible even at the Milky Way’s edges

    Phosphorus detected far from the Milky Way’s center seems to extend the zone where life could exist in the galaxy by thousands of light-years.

  3. Astronomy

    In a first, JWST detected starlight from distant galaxies with quasars

    Until JWST’s sharp infrared eyes came along, it wasn’t possible to see the galaxies hosting extremely bright supermassive black holes called quasars.

  4. Chemistry

    One photon is all it takes to kick off photosynthesis

    A single particle of light is the spark that begins the process of turning light to chemical energy in photosynthetic bacteria, a new study confirms.

  5. Astronomy

    Jupiter-sized planets are very rare around the least massive stars

    A six-year search of 200 nearby low-mass red dwarf stars found no Jupiter-like planets, boosting the standard theory for how such planets form.

  6. Life

    New fossils from Patagonia may rewrite the history of duck-billed dinosaurs

    New findings are adding a wrinkle to researchers’ understanding of how duck-billed dinosaurs conquered the Cretaceous world.

  7. Climate

    The snow forest of North America may be about to shrink

    From 2000 to 2019, the boreal forest’s northern boundary didn’t move while southern tree cover thinned due to climate change, wildfires and logging.

  8. Environment

    Rising groundwater threatens to spread toxic pollution on U.S. coastlines

    Sea level rise is pushing groundwater into shallower layers of earth, threatening to spread hazardous chemicals from contaminated soils.

  9. Animals

    A grisly trick helps snow flies survive freezing: self-amputation

    When a snow fly’s leg begins to freeze, a quick amputation can prevent ice from spreading, keeping the cold-hardy insect alive.

  10. Climate

    Why is the North Atlantic breaking heat records?

    Record-breaking sea-surface temperatures off the coast of Africa may affect the 2023 hurricane season. What’s fueling the unusual heat is unclear.

  11. Animals

    DNA has revealed the origin of this giant ‘mystery’ gecko

    A genetic analysis of a 19th century museum specimen, the only known example of the planet’s biggest gecko, has rewritten the animal’s backstory.

  12. Earth

    50 years ago, scientists thought they had found Earth’s oldest rocks

    Even older rocks and minerals continue fueling debates over Earth’s crust, plate tectonics and even when life arose.