Earth's oceans

SpaceX's Starship completed a full-duration test flight of roughly three hours, returning through the atmosphere and splashing down in the Pacific Ocean north of Hawaii. The flight marks another step in the rocket's development campaign, with observers tracking how the vehicle handled reentry and recovery. SpaceX has not detailed the outcome of every test objective, but the splashdown confirms the ship survived to its planned end point.

SpaceX's Starship has splashed down in the Pacific Ocean after returning to Earth earlier than planned. The next-generation rocket, developed for missions to the Moon and Mars, ended its flight short of schedule, prompting discussion about what caused the early return and what the outcome means for the vehicle's testing programme.

A new study reports that Earth microbes can survive in simulated conditions of the ocean beneath the ice of Enceladus, Saturn's icy moon. Scientists say the finding has implications for the search for life beyond Earth, suggesting terrestrial microorganisms could endure in environments thought hostile. The work is drawing attention among space and astrobiology enthusiasts debating what it means for future missions to the Saturn system.

The European Space Agency's JUICE mission, bound for Jupiter and its icy moons, passed at less than 10,000 km overhead around 13:45 CEST during its second Earth gravity assist, prompting a heads-up to ships in the Indian Ocean beneath its flight path. The spacecraft will return for one final Earth slingshot in 2029 before heading to the outer solar system.

Scientists report that conditions on Enceladus, Saturn's icy moon with a subsurface ocean, could support microbial life. The findings strengthen the case that the moon is one of the most promising places in the solar system to search for living organisms beyond Earth. The research is drawing attention among space and astrobiology enthusiasts discussing future exploration missions to Enceladus.

A spacecraft built to explore icy moons where life could exist is flying close by Earth, using the planet's gravity to adjust its course. The maneuver is part of a long journey toward the outer solar system, where scientists hope to study oceans beneath the moons' surfaces. The flyby has drawn attention as a milestone in the search for conditions suitable for life beyond our planet.

New research indicates that Earth microbes can survive under simulated conditions of the ocean beneath the ice of Saturn's moon Enceladus, suggesting life there is not out of the question. Scientists see the finding as encouraging for the search for life beyond Earth, since Enceladus's subsurface ocean is considered one of the most promising places to look.

Scientists suggest Saturn's icy moon Enceladus could host microbial life, and that plumes of water erupting from beneath its surface offer a way to detect it. The geysers blast material from a subsurface ocean into space, meaning a spacecraft could potentially sample it without drilling through the ice, keeping hopes alive in the search for life beyond Earth.

New research explains how Saturn's moon Enceladus transforms its subsurface ocean spray into chemically varied ice grains, shedding light on the processes behind the plumes first observed by the Cassini spacecraft. The findings help scientists understand the moon's ocean chemistry and its potential to host conditions suitable for life.

Researchers at the University of California, Riverside report that shifts in ocean chemistry played a key role in maintaining Earth's oxygen levels, allowing complex life to keep breathing over geological time. The study, covered by Phys.org, explains how chemical processes in the oceans helped regulate the planet's atmosphere across Earth's history.

New reporting explains how Earth's ocean chemistry played a central role in allowing life to keep breathing over billions of years. The piece explores how chemical processes in the oceans helped regulate oxygen levels, sustaining the atmosphere that complex organisms depend on. The findings are of interest to scientists studying planetary habitability and the conditions that allow life to endure.

Attention is turning to El Niño and its role in releasing stored heat from the oceans. A widely shared article explains that the vast majority of energy accumulating in the Earth's system due to climate change is stored in the oceans, and that El Niño is one way the ocean 'burps' out this extra heat, with potential consequences for global temperatures and weather patterns.

While most of Earth's oceans continue to warm, one region has grown colder, researchers note in a new analysis. The finding highlights how unevenly ocean warming is distributed, and scientists are examining what local currents, winds or other factors could explain the anomaly. The story is drawing attention as a striking exception to a well-established global trend.

NASA's Earth Observatory reports that powerful storms continue to move across the Pacific Ocean, documented through satellite imagery of the region. The imagery highlights the scale and persistence of the storm systems churning over Pacific waters. Beyond the headline, no further details are provided about specific locations affected, damage caused, or forecasts for the coming days.

SpaceX's Starship returned to Earth ahead of schedule, making a fiery splashdown in the Pacific Ocean during its latest orbital test mission. The early return cut short plans for the flight, though details on what prompted it have not been confirmed. The splashdown adds to the ongoing series of high-profile test flights as SpaceX continues developing the vehicle for future missions.

SpaceX's Starship completed Flight 14, reaching Earth's orbit before the vehicle's descent ended with an explosion over the Pacific Ocean. The test flight marks another step in the rocket's development program, with the controlled ocean landing used to gather data while protecting populated areas. Attention now turns to what the flight data reveals and how SpaceX adjusts for the next launch.

New research indicates the ice grains erupting from Saturn's moon Enceladus are more unusual than scientists previously understood. Enceladus, which has a subsurface ocean beneath its icy shell, constantly sprays water vapor and ice particles into space through cracks near its south pole, and fresh analysis of this material has revealed unexpected properties. The finding adds to interest in the moon as one of the most promising places to search for life beyond Earth.

A question about why roughly half of Earth remains unexplored is drawing wide attention, with ocean depths at the center of the discussion. The conversation highlights how much of the planet, particularly the deep sea, has never been mapped or surveyed by humans, prompting debate about funding for ocean exploration and what discoveries may still be hidden in unexplored regions.

Scientists are highlighting brine pools on the ocean floor — extremely salty underwater basins that kill most life that enters them — as potential keys to understanding how life began on Earth. The theory suggests similar chemical conditions in these pools may have driven the formation of early organic molecules, and that comparable environments could exist on other worlds, making them a target in the search for extraterrestrial life.

Jeff Bezos has pledged $25 million through his Earth Fund to support ocean protection efforts in the Pacific. The grant comes as the fund reportedly has only about $7 million left to spend from its commitment, raising questions about how much further Bezos's philanthropy will extend and what the remaining money will go toward.

New reporting highlights that Earth's ocean floor plays a far larger role in regulating the climate than previously understood. The seafloor influences how heat and carbon are stored and exchanged between the ocean and the atmosphere, processes that are central to climate models and projections. Coverage on multiple outlets is drawing attention to how much of the planet's climate machinery sits beneath the waves, largely out of sight.

A new finding reports that seafloor topography plays a role in shaping the global climate even in the absence of continents, suggesting underwater ridges, trenches and other seabed features influence ocean and atmospheric circulation on a planetary scale. The claim is drawing attention among ocean and climate observers, who see it as a reminder that the deep seafloor remains a key, still poorly mapped factor in Earth's climate system.

New reporting says one of Saturn's moons may hold clues relevant to the search for extraterrestrial life. Researchers are pointing to conditions on the moon that could resemble environments where life might arise, making it a key target for future exploration. No new discovery of life has been announced; the item highlights the moon's ongoing importance to astrobiology.

New research suggests Saturn's icy moon Enceladus makes signs of potential alien life easier to detect. The moon's subsurface ocean, sampled by NASA's Cassini spacecraft through plumes venting from its south pole, offers a promising target in the search for life beyond Earth, and the findings have drawn attention from planetary scientists.