Tag

Ocean

All articles tagged with #ocean

science1 day ago•1 min saved

Global Ocean Warmth Surpasses Records, Tracing Back to the Last Interglacial

Global sea-surface temperatures surged to a new high—nearly 70°F—likely the warmest in the Holocene and possibly since the last interglacial ~125,000 years ago, driven by a powerful El Niño. Widespread marine heat waves cover large swaths of the oceans (NOAA: ~42% of oceans), especially the Pacific, contributing to extreme weather including storms like Hurricane Lala and spikes in rainfall in the U.S. and heat in Europe.

via The Washington Post|

#climate-change #el-nino #heatwaves

science11 days ago•11 min saved

Titan: No Global Ocean After All—Slushy Ice and Warm Pockets Rework Its Interior

A 2025 Nature reanalysis of Cassini radio data finds Titan’s tidal lag of about 15 hours implies energy dissipation too large for a global subsurface ocean, instead suggesting a thick, high‑pressure ice layer with slush and pockets of warm water. The result reshapes the search for life beyond Earth and keeps Titan’s interior open to future tests, such as seismic measurements from the Dragonfly mission, while debates over the exact k2 values continue.

via Space Daily|

#cassini #interior #ocean

science14 days ago•48 min saved

Deep-sea throwback: survey confirms 200,000 barrels of radioactive waste in the Northeast Atlantic

A French expedition under the NODSSUM program found that more than 200,000 barrels of mid-20th-century radioactive waste dumped in the Northeast Atlantic have leaked, with cobalt-60, niobium-94, cesium-137 and americium-241 detected in sediments; several barrels are corroded and now host marine life, and researchers will analyze samples to determine the extent of leakage.

via Yahoo|

#nodssum #northeast-atlantic #ocean

space17 days ago•11 min saved

Mimas hides a young global ocean beneath its ancient ice

A new analysis of Cassini-era data shows Saturn’s small moon Mimas has a global ocean about 20–30 km below an ice shell of similar thickness. Formed roughly 5–15 million years ago (likely under 25 million), this conclusion, derived from precise measurements of the moon’s libration and orbital drift, is a geophysical inference rather than a direct observation. The surface appears old and inert, yet the interior contains liquid water, illustrating that oceans can exist beneath cratered, quiet-appearing worlds and highlighting the potential for hidden oceans in other small icy bodies. Future missions would be needed to confirm chemistry and persistence of the ocean.

via Space Daily|

#icy-moon #libration #mimas

space18 days ago•11 min saved

Europa's Dark Side Might Glow Colorfully, Revealing Ocean Clues

Lab experiments simulating Europa’s icy surface show that high-energy electrons can energize salts in the ice to emit faint visible light—green, blue, or white—on the moon’s night side. The glow depends on composition and radiation, offering a potential chemical map of surface salts and, indirectly, clues about the subsurface ocean. It’s not a direct ocean readout, and the signal could be faint or variable, but Europa Clipper may test whether such nightside emission exists and helps link surface chemistry to the hidden ocean.

via Space Daily|

#europa #ocean #radiation

local23 days ago•6 min saved

Teen Lifeguard's Daring Santa Cruz Rescue Draws White House Attention

A 16-year-old lifeguard saved a 10-year-old boy from dangerous rip currents and 4–6-foot waves at Seabright State Beach in Santa Cruz; the rescue, captured on video, earned viral attention and praise from the boy's father, with talk of a White House civilian honor for the teen, while witnesses say the effort extended beyond the clip and weekend rescues continued along the coast.

via Fox News|

#lifeguard #local #ocean

local23 days ago•6 min saved

Teen Lifeguard’s Close Call: Rookie Hero Saves Boy from Crushing Santa Cruz Waves

Sixteen-year-old Ryder Williams, a rookie lifeguard at Seabright State Beach in Santa Cruz, describes grabbing a limp 10-year-old from 8–10-foot surf and holding on as waves threatened to pull them out; with a partner's help and bystanders kept at bay, he kept his grip until they were hauled ashore, a rescue that drew praise from officials and President Trump and underscored the importance of teamwork and ocean safety.

via New York Post|

#california #hero #lifeguard

science24 days ago•14 min saved

Europa's Hidden Ocean Could Surpass Earth's Seas, Fueled by Jupiter's Tidal Rhythm

Europa, though smaller than Earth’s Moon, may hide a global ocean tens to about 150 km deep beneath an ice shell and could contain more liquid water than all Earth's oceans; the ocean remains liquid due to tidal heating from Jupiter, amplified by the Io–Europa–Ganymede Laplace resonance, plus radiogenic heat and an insulating ice shell. Evidence comes from magnetic induction data and surface geology, and NASA’s Europa Clipper (launched 2024) will fly by 49 times to measure ice thickness, ocean depth, salinity, and possible chemical gradients to assess habitability.

via Space Daily|

#europa #europa-clipper #laplace-resonance

local27 days ago•4 min saved

Teen Lifeguard's Daring Ocean Rescue Sparks Pride From Father

Ryder Williams, 16, a rookie California state parks lifeguard at Seabright Beach in Santa Cruz, saved a 10-year-old swept offshore by a large wave. Despite massive surf and bystanders filming, Ryder held onto the child until a fellow lifeguard could assist, bringing them safely to shore. The viral footage drew praise, though Ryder says he simply did what any lifeguard would do. The rescue was one of 34 that weekend in his district amid warnings of dangerous waves; Ryder isn’t on social media, and his father Shane Williams expressed pride at his son’s composure and duty.

via The Guardian|

#lifeguard #local #ocean

science27 days ago•11 min saved

Phytoplankton: Earth's invisible oxygen factory rivaling forests

Phytoplankton in the sunlit ocean produce about half of Earth's oxygen via photosynthesis, but net atmospheric oxygen is the result of production minus respiration and decay; the ocean's microscopic, fast-renewing layer spans vast areas and can rival terrestrial forests in scale, with light, nutrients and water mixing governing where it happens. Satellites like NASA's PACE estimate productivity, but warming and nutrient pollution could reshape carbon cycling and marine ecosystems, underscoring the ocean as a giant, invisible engine linking sunlight, oxygen and food.

via Space Daily|

#carbon-cycle #ocean #oxygen

science28 days ago•16 min saved

Scientists Capture Direct Birth of Ocean Floor at Mid-Ocean Ridge

A French-led team deployed an underwater observatory in the southern Indian Ocean and directly measured the birth of new ocean floor, finding that seafloor spreading can occur largely without earthquakes and that much crust renewal happens aseismically, offering new insight into how Earth's crust forms at mid-ocean ridges.

via Earth.com|

#crust-formation #geology #mid-ocean-ridge

us-news29 days ago•4 min saved

California Sailor Rescued Off Hawaii After a Month Adrift

A California man, Kai Sato, disappeared after leaving Catalina Island on June 7; his sailboat’s mast snapped, he ran out of fuel and his phone died, leaving him drifting outside shipping lanes for about a month. He survived by improvising repairs with PVC pipes and kayak paddles, eating leftover oatmeal, catching fish and squid, and collecting condensation for drinking water. A passing container ship rescued him off Hawaii, where he’s staying with a relative and plans to sail to the Philippines on a larger vessel.

via New York Post|

#boats #california #hawaii

science1 month ago•24 min saved

Colossal white shark Breton pivots south, stumping scientists off Florida coast

Breton, a 1,400-pound great white tracked by OCEARCH, has been pinging off eastern Florida and heading south into warmer waters, a surprising pattern that researchers say may involve deep, cooler dives and pursuit of pelagic prey.

via New York Post|

#florida #migration #ocean

science1 month ago•8 min saved

Shark Week caution: Forrest Galante warns against ocean beer-crushing and shares bite-prevention tips

Shark Week host Forrest Galante explains that crunching beers in the ocean can attract sharks and that most bites are mistaken-identity events; he urges beachgoers to educate themselves about shark species, avoid swimming at dawn/dusk and near river mouths or bait, not swim alone, and leave beverages on dry land to reduce risk ahead of his Discovery special 'Alien Sharks: Untamed America.'

via Fox News|

#forrest-galante #ocean #safety

space1 month ago•13 min saved

Europa's Hidden Ocean Could Hold More Than Twice Earth's Ocean Water

New evidence from magnetic data, surface geology, and interior models points to a global salty ocean beneath Europa’s ice, potentially containing more than twice Earth's ocean water and kept warm by tidal flexing from Jupiter; the Europa Clipper mission will map ice thickness, ocean depth, and chemistry to assess habitability, though no direct measurements have yet confirmed life or sea depth.

via Space Daily|

#europa #habitability #jupiter