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Liquid Water Once Flowed on Asteroid Ryugu’s Parent Body, Scientists Say

This image of the asteroid Ryugu was captured by the Optical Navigation Camera - Telescopic (ONC-T) on JAXA’s Hayabusa-2 spacecraft on June 26, 2018, from a distance of 13.7 miles (22 km). Image credit: JAXA / University of Tokyo / Kochi University / Rikkyo University / Nagoya University / Chiba Institute of Technology / Meiji University / Aizu University / AIST.
Sep 22, 2025 by News Staff

This water flow occurred on an ancient asteroid more than one billion years after its formation and was probably triggered by an impact that generated heat for ice melting and opened rock fractures for water migration, according to an analysis of material returned by JAXA’s Hayabusa-2 spacecraft. This image of the asteroid Ryugu was captured by the Optical Navigation Camera – Telescopic (ONC-T) on JAXA’s Hayabusa-2 spacecraft on June 26,...

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This Hubble image shows NGC 2775, a galaxy some 67 million light-years away in the constellation of Cancer. Image credit: NASA / ESA / Hubble / F. Belfiore / J. Lee / PHANGS-HST Team.

Hubble Space Telescope Captures New Image of NGC 2775

Sep 22, 2025 by News Staff

NGC 2775’s large, yellowish, central bulge is filled with old stars, encircled by tightly wound spiral arms decorated by dark dust and clusters of young,...

An artist’s impression of Platysomus parvulus. Image credit: Joschua Knüppe.

310-Million-Year-Old Ray-Finned Fish Had Tongue-Bite Apparatus

Sep 19, 2025 by News Staff

Platysomus parvulus, a species of ray-finned fish that lived 310 million years ago, had a unique way of eating never seen in ray-finned fish from that...

Detections of near-infrared emissions in Saturn’s ionosphere (left) show dark bead-like features embedded within bright aurora; in the stratosphere (right), 500 km below, a lopsided star-pattern extends towards the equator. Image credit: NASA / ESA / CSA / Webb / Stallard et al.

Webb Detects Complex Structures in Upper Atmosphere of Saturn

Sep 19, 2025 by News Staff

Astronomers using the NASA/ESA James Webb Space Telescope have detected a series of dark, bead-like and asymmetric star-shaped features in the ionosphere...

Life restoration of the Bayanshiree azhdarchid pterosaurs: the co-existence between Gobiazhdarcho tsogtbaatari and Tsogtopteryx mongoliensis in the Bayanshiree paleoenvironment, with a group of Gobihadros mongoliensis nearby. Image credit: Zhao Chuang.

Two New Species of Pterosaurs Discovered in Mongolia

Sep 18, 2025 by Enrico de Lazaro

Paleontologists have described two new species of azhdarchid pterosaurs from fossils found in the Late Cretaceous Bayanshiree Formation in Mongolia’s...

An artist’s illustration and an X-ray image from Chandra of RACS J0320-35. Image credit: NASA / CXC / INAF-Brera / Ighina et al. / SAO / M. Weiss / N. Wolk.

Astronomers Find Actively Accreting Supermassive Black Hole 12.8 Billion Light-Years Away

Sep 18, 2025 by News Staff

A supermassive black hole in the center of the radio quasar RACS J032021.44-352104.1 (RACS J0320-35 for short) is growing at one of the fastest rates ever...

Map of the ananguites strewn field, based on the tektite locations. Image credit: Musolino et al., doi: 10.1016/j.epsl.2025.119600.

New Type of Tektite Reveals 11-Million-Year-Old Asteroid Impact in Australia

Sep 18, 2025 by News Staff

Tektites are nearly pure glasses (practically no crystalline inclusions) created when a space rock slams into Earth, melting surface material and hurling...

Perspective view of Mars’ north polar ice cap and its distinctive dark troughs forming a spiral-like pattern. The view is based on images taken by ESA’s Mars Express and generated using elevation data from the Mars Orbiter Laser Altimeter on board NASA’s Mars Global Surveyor. Image credit: ESA / DLR / FU Berlin / NASA / MGS / MOLA Science Team.

Martian North Polar Vortex Creates Seasonal Ozone Layer, Planetary Scientists Say

Sep 17, 2025 by News Staff

The polar vortex is a consequence of Martian seasons, which occur because the planet’s axis is tilted at an angle of 25.2 degrees, according to University...

Young Zavacephale rinpoche duel for territory along a lakeshore 108 million years ago. Image credit: Masaya Hattori.

New Species of Dome-Headed Pachycephalosaur Unearthed in Mongolia

Sep 17, 2025 by News Staff

Paleontologists have discovered the fossilized remains of a previously unknown pachycephalosaur species in Mongolia’s Gobi Desert. The fossil is both...

This map shows the size and shape of the ozone hole over the South Pole on October 5, 2022, when it reached its single-day maximum extent for the year. Image credit: Joshua Stevens / NASA’s Earth Observatory.

Earth’s Ozone Layer Remains on Track to Recovery in Coming Decades, Experts Say

Sep 17, 2025 by News Staff

The ozone layer is healing and the Antarctic ozone hole in 2024 was smaller than in previous years, according to a new report from the World Meteorological...

The plano-convex ingot from Särdal, Halland, Sweden. Image credit: Sabatini et al., doi: 10.1016/j.jasrep.2025.105312.

Rare Artifact Found in Sweden Sheds Light on Iron Age Metal Trade between Atlantic and Baltic Sea

Sep 16, 2025 by News Staff

In new research, archaeologists examined a round heavy metal object from Särdal in the west Swedish region of Halland. Due to its shape and size, it seemed...

As shown in these EHT images, while M87*’s magnetic fields appeared to spiral in one direction in 2017, they settled in 2018 and reversed direction in 2021. Image credit: EHT Collaboration.

EHT Captures Evolving Polarization Patterns in Messier 87’s Black Hole

Sep 16, 2025 by News Staff

New images of the M87* black hole from the Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes (ALMA, APEX,...

Dinosaurs were ecosystem engineers, preventing dense forests from growing; their sudden demise led to widescale ecological changes, as represented here in an artistic rendering. Image credit: Julius Csotonyi.

Extinction of Non-Avian Dinosaurs Led to Wide Scale Changes in Landscapes: Study

Sep 16, 2025 by News Staff

New research suggests dinosaurs were ecosystem engineers that promoted habitat openness in the Late Cretaceous epoch, and their extinction around 66 million...

Saturn’s moon Enceladus with a plume. Image credit: NASA / JPL-Caltech / SSI / Kevin M. Gill.

Planetary Scientists Question Ocean Origin of Organic Molecules in Enceladus’ Plumes

Sep 16, 2025 by News Staff

Saturn’s magnetosphere contains trapped plasma and energetic charged particles which constantly irradiate the surface of Enceladus. The plasma consists...

Bright field images are shown for vessels harvested as described in methods from (a) ostrich vessels soaked in hemoglobin solution under deoxygenating conditions, (b) ostrich vessels soaked in hemoglobin under oxygenated conditions, (c) vessels recovered from demineralized Brachylophosaurus canadensis and (d) Tyrannosaurus rex bone. Scale bars - 0.5 mm in (a-c) and 0.2 mm in (d). Image credit: Long et al., doi: 10.1098/rspa.2025.0175.

New Study Confirms Partial Hemoglobin Preservation in Dinosaur Remains

Sep 16, 2025 by News Staff

Using a technique called Resonance Raman spectroscopy, paleontologists have detected hemoglobin remnants in bone extracts from two dinosaur species, Brachylophosaurus...

Hypothetical reconstruction of Acarechimys hunikuini. Image credit: Márcio Castro.

New Species of Extinct Octodontoid Rodent Discovered from Amazonian Fossil

Sep 15, 2025 by Enrico de Lazaro

Paleontologists have identified a new species of rodent in Acarechimys, an extinct genus with a widespread South American distribution, from a partial...

White matter degenerating microglia are a novel therapeutic target to potentially reduce the impact of white matter injury and myelin loss on the progression of cognitive impairment. Image credit: Miroslaw Miras.

Researchers Develop Self-Administered Digital Test for Diagnosing Alzheimer’s Disease

Sep 15, 2025 by News Staff

A proof-of-concept study by a team of Lund University scientists shows that their brief, self-administered digital cognitive test — named BioCog...

Seal of Yaroslav the Wise, the Grand Prince of Kyiv from 1019 until 1054 and the father of Anna Yaroslavna, the Queen of France. Image credit: Sheremetievs Museum.

Slavs Originated in Ukraine and Southern Belarus, DNA Study Finds

Sep 15, 2025 by News Staff

The second half of the first millennium CE in Central and Eastern Europe was accompanied by fundamental cultural and political transformations. This period...

This Hubble image shows Messier 82, a starburst irregular galaxy located 12 million light-years away in the constellation of Ursa Major. Image credit: NASA / ESA / Hubble / W.D. Vacca.

Hubble Sees Star-Powered Heart of Messier 82

Sep 15, 2025 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a new image of the central part of the edge-on starburst galaxy Messier 82. This Hubble...

An adult mastodon (Mammut sp.) consuming a spruce branch set against a backdrop illustrating their cyclical continental migrations linked to climate fluctuations. At least two species of mastodons roamed North America during the Middle and Late Pleistocene: the American mastodon, stretching from the eastern seaboard to central parts of the continent, and the Pacific mastodon from central Alberta through California. Image credit: Kathryn Killackey.

Mastodons were Far More Genetically Diverse than Previously Known, Ancient DNA Shows

Sep 15, 2025 by News Staff

Ancient DNA has been useful in reconciling deep evolutionary relationships and responses to ecological changes in elephants and their relatives. In new...

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