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

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.
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 Université, Queen Mary University of London, Université de Franche-Comté and Jinan University show that its heavily cratered icy shell hides a recently formed (less than 2-3 million years ago) global ocean, at a depth of 20-30 km. Mimas’ surface, like the surfaces of most of the other major...

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Glikmanius careforum. Image credit: Benji Paynose.

Two New Species of Carboniferous Ctenacanth Sharks Identified in the United States

Feb 7, 2024 by News Staff

A focused search for ancient marine vertebrates during a paleontological resource inventory of Mammoth Cave National Park has yielded a wealth of new fossil...

Life reconstruction of Inawentu oslatus. Image credit: Gabriel Lio.

New Cretaceous-Era Titanosaur Species Discovered in Argentina

Feb 6, 2024 by Enrico de Lazaro

A new genus and species of rebbachisaurid-mimicking titanosaurian sauropod that stretched over 15 m (50 feet) has been unearthed in Patagonia, Argentina. Life...

Life reconstruction of Harajicadectes zhumini. Image credit: Brian Choo, Flinders University.

380-Million-Year-Old Fossils of Air-Breathing Tetrapod Fish Found in Australia

Feb 6, 2024 by Enrico de Lazaro

Flinders University paleontologist Brian Choo and his colleagues have described a new genus and species of Devonian tetrapodomorph fish based on several...

An artist’s reconstruction of Ceoptera evansae. Image credit: Mark Witton / Natural History Museum, London.

New Pterosaur Species Identified from Skye Fossils

Feb 5, 2024 by Enrico de Lazaro

A new genus and species of pterosaur has been identified from the fossilized material found in the Kilmaluag Formation of the Isle of Skye, Scotland. An...

An artist’s impression of the super-Earth exoplanet TOI-715b. Image credit: NASA / JPL-Caltech.

Astronomers Find Super-Earth Exoplanet in Habitable Zone of TOI-715

Feb 5, 2024 by Natali Anderson

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered and characterized a habitable zone planet orbiting the...

Sanfordiacaulis densifolia. Image credit: Tim Stonesifer.

Early Carboniferous Tree Species Had Unique Crown Shape

Feb 5, 2024 by Natali Anderson

Sanfordiacaulis densifolia is an extinct tree species that existed between 359 and 347 million years ago (Carboniferous period) in what is now New Brunswick,...

The clouded tiger cat (Leopardus pardinoides). Image credit: Johannes Pfleiderer.

Scientists Identify Cryptic New Species of Tiger Cat

Jan 31, 2024 by Natali Anderson

In 2013, the oncilla (Leopardus tigrinus), a species of small spotted cat from the Americas, was split into two species: the northern tiger cat (Leopardus...

Life reconstruction of Bustingorrytitan shiva. Image credit: UnexpectedDinoLesson / Holger Detje / Sci.News.

Meet Bustingorrytitan shiva, New Gigantic Titanosaur from Argentina

Jan 29, 2024 by Enrico de Lazaro

A duo of paleontologists in Argentina has identified a new genus and species of gigantic titanosaur from several fossilized specimens found in the Patagonian...

This enhanced color view of NASA’s Ingenuity helicopter was generated using data collected by the Perseverance rover on August 2, 2023. Image credit: NASA.

NASA Announces End of Ingenuity Mission

Jan 29, 2024 by News Staff

NASA’s Ingenuity helicopter made history by achieving the first powered, controlled flight on another planet on April 19, 2021. Despite initial plans...

An artist’s impression of Kwatisuchus rosai. Image credit: Márcio Castro.

Fossil of Giant Triassic Amphibian Unearthed in Brazil

Jan 26, 2024 by Enrico de Lazaro

A new genus and species of temnospondyl amphibian has been described by a team of paleontologists from the Universidade Federal do Pampa, the Universidade...

An artist’s depiction of Eoneophron infernalis (top left), Anzu wyliei (right) and another caenagnathid dinosaur (bottom left) in the Hell Creek Formation. Image credit: Zubin Erik Dutta.

Paleontologists Discover New Species of Oviraptorosaur in South Dakota

Jan 25, 2024 by Sergio Prostak

A team of paleontologists from Oklahoma State University, the University of Toronto and Royal Ontario Museum has added another species of caenagnathid...

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...

Coffea arabica. Image credit: Fadhil Asqar.

Scientists Produce Chromosome-Scale Genome Sequence for Arabica Coffee

Jan 24, 2024 by Natali Anderson

Researchers from the Istituto di Genomica Applicata and elsewhere have released an improved genome assembly for Arabica coffee (Coffea arabica), a hybrid...

This artwork shows three mammoths being watched by a family of ancient Alaskans from the dunes near the Swan Point archaeological site, a seasonal hunting camp occupied 14,000 years ago. Image credit: Julius Csostonyi.

Female Woolly Mammoth’s Lifetime Movements Tied to Ancient Alaskan Hunter-Gatherer Camp

Jan 19, 2024 by News Staff

Woolly mammoths (Mammuthus primigenius) in mainland Alaska overlapped with the region’s first people for at least 1,000 years. However, it is unclear...

Life restoration of the aetosaur Typothorax coccinarum. Image credit: Smokeybjb.

New Aetosaur Species Unearthed in Texas

Jan 18, 2024 by Enrico de Lazaro

A new genus and species of large-bodied aetosaur that lived some 218 million years ago has been described from a significant portion of carapace found...

GN-z11. Image credit: NASA / ESA / P. Oesch, Yale University / G. Brammer, STScI / P. van Dokkum, Yale University / G. Illingworth, University of California, Santa Cruz.

Webb Detects Oldest Black Hole Yet Known

Jan 18, 2024 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected a small and vigorous black hole in GN-z11, an exceptionally luminous galaxy...

Magerifelis peignei. Image credit: Jesús Gamarra.

New Prehistoric Cat Species Discovered in Spain

Jan 17, 2024 by Natali Anderson

Paleontologists at the Museo Nacional de Ciencias Naturales-CSIC have identified a new genus and species of medium-sized feline from a partial jaw found...

The portrait of Homo longi. Image credit: Cicero Moraes, doi: 10.6084/m9.figshare.24648591.

Face of Homo longi Reconstructed

Jan 15, 2024 by Sergio Prostak

A Brazilian anthropologist has reconstructed the face of the archaic human species Homo longi from a well-preserved skull discovered in northeastern China...

HD 63433d sits close to its parent star, HD 63433, while two neighboring, mini-Neptune-sized planets, HD 63433b and HD 63433c, orbit farther out. Image credit: Alyssa Jankowski.

Earth-Sized Exoplanet Found Orbiting HD 63433

Jan 15, 2024 by Enrico de Lazaro

Using NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have spotted an Earth-sized planet transiting the young Sun-like star HD 63433. HD...

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