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New star activity catalog could sharpen hunt for habitable worlds

Searching for habitable worlds beyond our solar system involves more than having a planet orbit within its star's habitable zone, the region where temperatures could be just right for liquid water to exist on the surface. On Earth, where water comprises approximately 75% of the p

Admin Recifes 15/07/2026 1

How asteroids may have sparked life on Earth

Ancient asteroid impacts may have done more than reshape Earth's surface—they could have helped spark life itself. New computer models show the collisions created enormous underground hydrothermal systems by cracking the planet's crust and allowing hot water to flow through it. T

Admin Recifes 15/07/2026 1

Climate change may prop up urban plant growth in the face of development—provided cities b

Worsened drought stress, changing rainfall patterns, flowers and pollinators thrown out of sync: These only scratch the surface of the ways climate change challenges plant life. But warmer air and higher carbon dioxide levels can also fuel faster plant growth, limit plants' water

Admin Recifes 15/07/2026 1

Hidden role of garnet reveals how Earth's 660-km seismic boundary forms

Nearly 660 kilometers (410 miles) beneath Earth's surface lies one of the planet's most important internal boundaries. Known as the 660-km seismic discontinuity, it separates the mantle transition zone from the lower mantle and plays a central role in controlling how heat and mat

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Metallic effect pigments significantly reduce flow-line visibility on glossy plastic surfa

Metallic effects on plastic surfaces have become standard in many industries, from automotive interiors and exteriors to toys and household appliances. However, injection-molded parts with metallic effects suffer from a well-known drawback: visible flow lines that appear as strea

Admin Recifes 15/07/2026 1

Seaweeds are not plants, and six other surprising facts about aquatic flora

Hidden beneath the water's surface is a botanical world that is among nature's most innovative and ecologically important.

Admin Recifes 15/07/2026 1

Cosmic neutrino 'whispers' may surface in 5,000-day Super-Kamiokande signal

Neutrinos: They have no electric charge, pass through matter like a ghost and are so light they were initially thought to have zero mass. These are just some of the traits that make them so difficult to detect. Research on neutrinos requires massive underground observatories far

Admin Recifes 15/07/2026 1

Antarctic ozone loss drove unexpected Southern Ocean cooling, climate model shows

The Southern Ocean has long stood out as an oddity in the global climate system. While most of the planet's surface oceans have warmed in response to rising greenhouse gases, waters circling Antarctica showed an unexpected tendency to cool during the late 20th and early 21st cent

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Greenland meltwater adds to AMOC weakening, but updated model finds no tipping point in si

The state of the Atlantic Meridional Overturning Circulation (AMOC) has been a hot topic among climate scientists in recent years. The AMOC is crucial for climate regulation because it pulls warm surface water from the tropics north and sends colder, deeper water south, redistrib

Admin Recifes 15/07/2026 1

Mars express captures dozens of dust devils in Mars valley

Dust devils are a regular feature on Mars. Just like those found on Earth, these mini whirlwinds form when parts of Mars are warmed by the sun, causing air above the surface to swirl upward and carry dust with it. But in Mars' lower gravity (38% that of Earth), these devils grow

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Bioinspired strategy creates complex 3D curved structures via programmed shrinkage

The shape of biological structures, ranging from flower petals to the limbs or organs of animals, is often naturally best suited for performing specific functions. Biological structures also often present curved surfaces with specific functional advantages, such as facilitating t

Admin Recifes 15/07/2026 2

Discrepancies in AI lunar crater catalogs discovered

A new Southwest Research Institute-led study compared eight AI-generated lunar crater catalogs, discovering that many of their published performance metrics drop sharply when the databases are evaluated using the same scientific standards humans are held to. Crater catalogs provi

Admin Recifes 15/07/2026 1

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