1. Climate

    Here’s what happened to the Delaware-sized iceberg that broke off Antarctica

    The powerful pull of currents in the Southern Ocean probably pulled apart the largest remnant of a massive iceberg that split off Antarctica in 2017.

  2. Environment

    Mangrove forests expand and contract with a lunar cycle

    The carbon-sequestering trees grow in a roughly 18-year cycle according to tides influenced by the moon’s orbit, a study in Australia finds.

  3. Climate

    A coral pollution study unexpectedly helped explain Hurricane Maria’s fury

    Tracking coral reef pollution in Puerto Rico, conservation researchers discovered by chance how the coastal ocean fueled Hurricane Maria.

  4. Earth

    The Tonga eruption may have spawned a tsunami as tall as the Statue of Liberty

    A massive undersea volcanic eruption in the South Pacific in January created a tsunami that was initially 90 meters tall, computer simulations suggest.

  5. Life

    Sea sponges launch slow-motion snot rockets to clean their pores

    Sea sponges rely on a sneezing mechanism to clear their pores, using mucus to flush out debris. This mucus provides food for other marine life.

  6. Paleontology

    Megatooth sharks may have been higher on the food chain than any ocean animal ever

    Some megalodons and their ancestors were the ultimate apex predators, outeating all known marine animals, researchers report.

  7. Oceans

    How some sunscreens damage coral reefs

    In lab experiments, sea anemones and coral turned oxybenzone into a toxin activated by light. But helpful algae may provide a layer of protection.

  8. Climate

    Coastal cities around the globe are sinking

    Of 99 coastal cities, nearly one-third are sinking in some places at more than a centimeter per year, making them more vulnerable to rising seas.

  9. Oceans

    Even the sea has light pollution. These new maps show its extent

    Coastal cities and offshore development create enough light to potentially alter behavior of tiny organisms dozens of meters below the surface.

  10. Climate

    How did we get here? The roots and impacts of the climate crisis

    Over the last century and a half, scientists have built a strong case for the roots and impacts of human-caused climate change.

  11. Oceans

    Some deep-sea octopuses aren’t the long-haul moms scientists thought they were

    Off California’s coast, some octopuses lay eggs in the warmer water of geothermal springs in the “Octopus Garden,” speeding up their development.

  12. Oceans

    Sunlight helps clean up oil spills in the ocean more than previously thought

    Solar radiation dissolved as much as 17 percent of the surface oil slick spilled after the 2010 Deepwater Horizon explosion, a new study suggests.