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Nautilus array to track missing exoplanet atmospheres

Exoplanet atmospheres have become prime targets for astrobiologists in the search for life beyond Earth. This is because exoplanet surfaces can't be directly imaged yet, so astronomers must get creative in how they search for signs of life, also called biosignatures. Presently, p

Admin Recifes 15/07/2026 2

Cosmic dust could play key role in cracking long-standing mystery of solar corona heating

A researcher at The University of Alabama in Huntsville (UAH), a part of The University of Alabama System, has published a new study in The Astrophysical Journal suggesting that tiny charged dust grains near the sun may significantly influence how energy moves through the solar c

Admin Recifes 15/07/2026 2

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

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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

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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

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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

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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.

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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

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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

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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

Admin Recifes 15/07/2026 2

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