Tag Archive for 'Water'

Computational models are used to examine the effect of schooling on flow generated noise of fish swimming using their caudal fins. Zhou et al. simulated the flow as well as the far-field hydrodynamic sound generated by the time-varying pressure loading on these carangiform swimmers. Image credit: Zhou et al., doi: 10.1088/1748-3190/ad3a4e.

Schools of Fish Can Make Less Noise than Solitary Swimmer, Study Shows

Apr 10, 2024 by News Staff

A team of engineers at Johns Hopkins University has found that a school of fish moving together in just the right way is stunningly effective at noise...

This image from Mars Express’ High Resolution Stereo Camera shows the globe of Mars set against a dark background. The disk of the planet features yellow, orange, blue and green patches, all with an overall muted grey hue, representing the varying composition of the surface. Image credit: ESA / DLR / FU Berlin / G. Michael / CC BY-SA 3.0 IGO.

Mars Drives Deep-Ocean Circulation in Earth’s Oceans, Study Suggests

Mar 13, 2024 by News Staff

Geoscientists from Australia and France have used the geological record of Earth’s deep oceans to discover a connection between the orbits of our home...

This side of a commemorative plate mounted on NASA’s Europa Clipper spacecraft features U.S. Poet Laureate Ada Limón’s handwritten In Praise of Mystery: A Poem for Europa. Image credit: NASA / JPL-Caltech.

NASA Scientists Unveil Design for Europa Clipper’s ‘Golden Record’

Mar 12, 2024 by News Staff

NASA’s Europa Clipper spacecraft will carry a triangular metal plate with a special message when it launches in October 2024 and heads toward Jupiter’s...

This illustration shows charged particles from Jupiter impacting Europa’s surface, splitting frozen water molecules into oxygen and hydrogen molecules; scientists believe some of these newly created oxygen gases could migrate toward the moon’s subsurface ocean, as depicted in the inset image. Image credit: NASA / JPL-Caltech / SWRI / PU.

Europa Produces Less Oxygen than Previously Thought

Mar 4, 2024 by News Staff

Using data from the Jovian Auroral Distributions Experiment (JADE) instrument onboard NASA’s Juno spacecraft, planetary scientists have calculated the...

This ALMA image shows the water vapor (shades of blue) in the protoplanetary disk around HL Tauri; near the center of the disk, where the young star lives, the environment is hotter and the gas brighter; the red-hued rings are previous ALMA observations showing the distribution of dust around the star. Image credit: ALMA / ESO / NAOJ / NRAO / Facchini et al.

ALMA Detects Water Vapor in Protoplanetary Disk around Young Star

Feb 29, 2024 by Enrico de Lazaro

The water molecule is a key ingredient in the formation of planetary systems. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA)...

Jezero Crater, one of the paleolakes examined in the study, is a paleolake and potential landing site for NASA’s Mars 2020 rover mission to look for past life; the outlet canyon carved by overflow flooding is visible in the upper right side of the crater; ancient rivers carved the inlets on the left side of the crater. Image credit: NASA / Tim Goudge.

Ancient Mars May Have Had Hydrothermal Systems

Feb 22, 2024 by News Staff

The history of water on Mars is a puzzle that is of interest to planetary scientists as well as the general public. The Red Planet currently has water...

Shuai et al. used a synchronized attosecond X-ray pulse pair (pictured pink and green here) from an X-ray free electron laser to study the energetic response of electrons (gold) in liquid water on attosecond time scale, while the hydrogen (white) and oxygen (red) atoms are ‘frozen’ in time. Image credit: Nathan Johnson, Pacific Northwest National Laboratory.

Physicists Take First Look at Electrons Moving in Real-Time in Liquid Water

Feb 16, 2024 by News Staff

A research team led by Argonne National Laboratory physicists has isolated the energetic movement of an electron while ‘freezing’ the motion of the...

Arredondo et al. looked at four silicate-rich asteroids using the FORCAST instrument on NASA’s SOFIA observatory to isolate the mid-infrared spectral signatures indicative of molecular water on two of them: Iris and Massalia. Image credit: NASA / Carla Thomas / Southwest Research Institute.

SOFIA Detects Molecular Water on Nominally Dry Asteroids

Feb 13, 2024 by News Staff

Using the FORCAST instrument on NASA’s retired Stratospheric Observatory for Infrared Astronomy (SOFIA), astronomers have obtained mid-infrared spectra...

Mimas’ surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities; the relatively dark markings appear along the lower portion of the walls of the 130-km-wide Herschel Crater (the peak in the middle of the crater is about as tall as Mount Everest; the impact that made it likely almost destroyed the moon) and some of the smaller craters; scientists interpret this darkening as evidence for the gradual concentration of impurities from evaporating icy materials in areas where the dark impurities slide slowly down the crater wall. Image credit: NASA / JPL / Space Science Institute.

Saturn’s Moon Mimas Harbors Global Ocean beneath Its Icy Shell, Study Suggests

Feb 7, 2024 by News Staff

From detailed analysis of Mimas’ orbital motion based on data from NASA’s Cassini mission, planetary researchers from Sorbonne Université, Nantes...

The water detection in the transit spectrum of Gliese 9827d makes it the first water world candidate with an atmospheric water detection consistent with a water-rich envelope. Image credit: NASA / ESA / Leah Hustak, STScI / Ralf Crawford, STScI.

Hubble Detects Water Vapor in Atmosphere of Gliese 9827d

Jan 25, 2024 by News Staff

Using the Wide Field Camera 3 (WFC3) instrument onboard the NASA/ESA Hubble Space Telescope, astronomers have detected water vapor in the transmission...

This image shows a height map of the Martian surface, with lowest land in blue and highest in white. Image credit: ESA.

Mars Express Finds New Evidence for Ice-Rich Layered Deposits in Medusae Fossae

Jan 22, 2024 by News Staff

Over 15 years ago, ESA’s Mars Express spacecraft studied the Medusae Fossae Formation, revealing enigmatic deposits up to 2.5 km deep. From those early...

Litman et al. show that ions and water molecules at the surface of most salt-water solutions, known as electrolyte solutions, are organized in a completely different way than traditionally understood. Image credit: Litman et al., doi: 10.1038/s41557-023-01416-6.

Water Molecules at Salt Water’s Surface Organized Differently than Previously Thought: Study

Jan 17, 2024 by News Staff

The distribution of ions at the air/water interface plays a decisive role in many natural processes. Several studies have reported that larger ions tend...

An artist’s impression of the super-Earth planet Ross 508b. Image credit: Sci-News.com.

Astronomers Find New Way to Detect Water Oceans and Alien Life on Rocky Exoplanets

Dec 29, 2023 by News Staff

Planets too close to their star are too hot (such as Venus), those too far, are too cold (like Mars), whereas planets in the habitable zone are just right....

This artist’s impression shows Proxima b orbiting Proxima Centauri, which at only 4.23 light-years is the closest star to our Solar System. The double star Alpha Centauri AB also appears in the image between the exoplanet and Proxima itself. Image credit: M. Kornmesser / ESO.

Proxima b May Harbor Explosive Cryovolcanoes and Habitable Subsurface Ocean

Dec 15, 2023 by News Staff

Astronomers from NASA and the University of Washington have estimated total internal heating rates and depths to possible subsurface oceans for 17 planets...

Harper et al. demonstrate that the addition of external water simultaneously suppresses surface charging and clumping of ground coffee and results in notably different flow dynamics in espresso formats, likely yielding markedly different taste profiles and more concentrated extracts. Image credit: Harper et al., doi: 10.1016/j.matt.2023.11.005.

Grinding Coffee with Addition of Water Reduces Static Electricity, Researchers Say

Dec 6, 2023 by News Staff

Coffee grinding produces large quantities of static charge due to both fracturing and rubbing. Charge causes particle aggregation and discharge, a familiar...

An artist’s impression of the massive star-forming region, with the planet-forming disk XUE 1 in the foreground. Image credit: Maria Cristina Fortuna, www.mariacristinafortuna.com.

Webb Detects Various Molecules in Extremely Irradiated Protoplanetary Disk

Dec 1, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected abundant water, carbon monoxide, carbon dioxide, hydrogen cyanide and acetylene...

An artist’s rendition of the hot-Jupiter exoplanet TOI-1789b. Image credit: Sci-News.com.

Scientists Recreate Extraterrestrial Atmospheric Hazes in the Lab

Nov 27, 2023 by News Staff

The NASA/ESA/CSA James Webb Space Telescope has begun its scientific mission, which includes the atmospheric characterization of transiting exoplanets....

Kim et al. suggest that chemical exchange between the core and mantle over gigayears of deep transport of water may have contributed to the formation of the putative E’ layer. Image credit: Yonsei University.

Surface Water Penetrates Deep into Earth, New Research Suggests

Nov 14, 2023 by News Staff

A few decades ago, seismologists identified a thin layer with a lower velocity in Earth’s metallic liquid core. The origin of this layer, known as the...

Bench-and-slope morphology pictured on Mars (top) and nose morphology from the ground at Mars Mont Mercou outcrop (bottom). Image credit: NASA / Caltech-JPL / MSSS.

Ancient Mars was Planet of Rivers, Planetary Scientists Say

Oct 25, 2023 by News Staff

Ancient river deposits exist across Mars and can be identified in satellite data by erosional landforms called fluvial ridges. Fluvial ridges take the...

An artist’s depiction of the liquid-like layer of molecules repelling water droplets. Image credit: Ekaterina Osmekhina / Aalto University

Materials Scientists Create Most Water-Repellent Surface Ever

Oct 23, 2023 by News Staff

Omniphobic liquid-like surfaces are a new type of liquid-repellent surface that offer many technical benefits over traditional approaches. They have molecular...

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