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Astronomers Discover Ring around Trans-Neptunian Object Quaoar

An artist’s impression of the dwarf planet Quaoar and its ring. Quaoar’s moon Weywot is shown on the left. Image credit: ESA / CC BY-SA 3.0 IGO.
Feb 9, 2023 by Natali Anderson

The newly-detected ring orbits at 7.4 radii from Quaoar — much further away from the object than the rings around Saturn. An artist’s impression of the dwarf planet Quaoar and its ring. Quaoar’s moon Weywot is shown on the left. Image credit: ESA / CC BY-SA 3.0 IGO. Quaoar is a trans-Neptunian object about 1,100 km (690 miles) in diameter. Like the dwarf planet Pluto, this object dwells in the Kuiper Belt, an icy debris field of comet-like...

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Neolissochilus pnar. Image credit: Uros Aksamovic.

Meet Neolissochilus pnar, World’s Largest Cavefish

Feb 8, 2023 by Natali Anderson

Neolissochilus pnar grows to over 400 mm (1.3 feet) and occurs only in the limestone caves of Meghalaya, a state in northeastern India. Neolissochilus...

Dey et al. uncovered striking new evidence for a mass migration of stars into the Andromeda galaxy. Image credit: KPNO / NOIRLab / AURA / NSF / Local Group Survey Team / T.A. Rector, University of Alaska Anchorage / D. de Martin / M. Zamani.

Galactic Immigration Event Occurred in Andromeda Galaxy 1-2 Billion Years Ago

Feb 8, 2023 by News Staff

The Andromeda galaxy (Messier 31), which is located 2.5 million light-years away, is the Milky Way’s nearest large galactic neighbor. By measuring the...

An artist’s conception of the surface of the Earth-mass exoplanet Wolf 1069b. Image credit: NASA’s Ames Research Center / Daniel Rutter.

Astronomers Discover Earth-Mass Exoplanet in Habitable Zone of Wolf 1069

Feb 8, 2023 by Natali Anderson

Wolf 1069b is the sixth closest Earth-mass exoplanet situated in the conservative habitable zone of its parent star, after Proxima Centauri b, Gliese 1061d,...

Rhoden et al. revisited New Horizons data to explore the source of cryovolcanic flows and an obvious belt of fractures on Charon. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute.

Charon’s Freezing Ocean Produced Huge Canyons on Its Surface, Modeling Study Suggests

Feb 8, 2023 by News Staff

When ocean-bearing moons begin to cool down, their oceans can freeze. As new ice accretes to the bottom of the existing ice shell, the added volume of...

The potent antibacterial activity of lunaemycins against antibiotic resistant Gram-positive bacteria may in part explain how Streptomyces lunaelactis strains have found their own place in extremely oligotrophic and competitive environments such as moonmilk deposits. Image credit: Martinet et al., doi: 10.3390/ijms24021114.

New Group of Antibiotics Isolated from Moonmilk Deposits

Feb 8, 2023 by Natali Anderson

Lunaemycins are produced by Streptomyces lunaelactis, a species of bacterium that inhabits the moonmilk deposits of La Grotte Des Collemboles in Belgium...

An artist’s impression of an irregularly-shaped asteroid. Image credit: N. Bartmann, ESA & Webb / ESO / M. Kornmesser / S. Brunier / N. Risinger, skysurvey.org.

Webb Discovers New Asteroid in Solar System’s Main Belt

Feb 7, 2023 by News Staff

The newly-discovered asteroid is less than 230 m (755 feet) across, and orbits within the main asteroid belt, which is located between Mars and Jupiter. An...

Hua et al. discovered a previously unknown layer of partly molten rock in a key region just below the tectonic plates. Image credit: Leonello Calvetti / Dreamstime.

Partially Molten Layer Detected Beneath Earth’s Tectonic Plates

Feb 7, 2023 by News Staff

The newly-detected molten rock layer is located about 150 km (93 miles) from the surface of our planet and is part of the asthenosphere, which sits under...

This composite image shows Messier 61, a spiral galaxy located 52.5 million light-years away in the constellation of Virgo. Image credit: ESO / ALMA / NAOJ / NRAO / PHANGS.

ESO Releases Stunning New Image of Messier 61

Feb 7, 2023 by Enrico de Lazaro

The new image of Messier 61, a spiral galaxy located in the constellation of Virgo, combines data taken at radio and visible wavelengths and is helping...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

Neanderthal Diet Included Crab Meat, Archaeologists Say

Feb 7, 2023 by News Staff

Archaeologists have unearthed a rich assemblage of human-accumulated terrestrial and marine faunal remains, including those of several crab species, in...

An artist’s reconstruction of Notocolossus gonzalesparejasi, a sister taxon of Chucarosaurus diripienda. Image credit: Nobu Tamura, http://spinops.blogspot.com.

New Species of Colossosaur Identified in Argentina

Feb 6, 2023 by Enrico de Lazaro

A new genus and species of giant colossosaurian titanosaur has been identified from fossils found in Patagonia, Argentina. An artist’s reconstruction...

An artist’s impression of our Milky Way Galaxy in its youth. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time. Image credit: James Josephides, Swinburne University.

Astornomers Spot Progenitor of Milky Way-Like Galaxy in Early Universe

Feb 6, 2023 by News Staff

We are seeing the ‘Sparkler’ galaxy from 9.1 billion years ago, some 4 billion years after the Big Bang. An artist’s impression of our Milky Way...

Hyperolius ukaguruensis. Image credit: Christoph Liedtke.

Scientists Discover New Species of Voiceless Frog in Tanzania

Feb 6, 2023 by Natali Anderson

The newly-identified species belongs to the frog genus Hyperolius and has an unusual trait — it’s completely silent. Hyperolius ukaguruensis. Image...

Cantuaria et al. found positive associations between exposure to road traffic noise and risk of tinnitus; highest risk estimates were found for women, people without a hearing loss, people with high education and income, and people who had never been in a blue-collar job. Image credit: Pexels.

Residential Exposure to Road Traffic Noise Increases Risk of Tinnitus, New Study Suggests

Feb 6, 2023 by Enrico de Lazaro

In a nationwide cohort study, scientists in Denmark investigated the association between residential road traffic and railway noise exposure, measured...

This Hubble image shows Donatiello II (center), an ultra-faint dwarf galaxy some 11.4 million light-years away in the constellation of Sculptor. Image credit: NASA / ESA / Hubble / B. Mutlu-Pakdil / G. Donatiello.

Hubble Observes Ultra-Faint Dwarf Galaxy Donatiello II

Feb 6, 2023 by Enrico de Lazaro

A new image taken with NASA/ESA Hubble Space Telescope shows Donatiello II, a recently-discovered dwarf galaxy associated with the nearby spiral galaxy...

A jar with the medium-density amorphous ice inside, with steel balls and liquid nitrogen. Image credit: Rosu-Finsen et al., doi: 10.1126/science.abq2105.

New Form of Ice Discovered: Medium-Density Amorphous Ice

Feb 3, 2023 by News Staff

Water ice has many crystalline phases, along with a few amorphous structures. The complex structural diagram is important to understand because of the...

Reconstruction of the distal end of the Manis projectile point. Image credit: Waters et al., doi: 10.1126/sciadv.ade9068.

13,900-Year-Old Projectile Point Found in Washington

Feb 3, 2023 by Enrico de Lazaro

Scientists have found fragments a human-made projectile point in a rib of an American mastodon (Mammut americanum) from the Manis site, Washington, the...

Nautilus samoaensis. Image credit: Barord et al., doi: 10.3897/zookeys.1143.84427.

Marine Biologists Identify Three New Nautilus Species

Feb 3, 2023 by Natali Anderson

The three new species of nautiluses belong to the genus Nautilus and represent populations on the easternmost edge of the overall habitat range of the...

Strongly driven systems of emitters offer an attractive source of light over broad spectral ranges up to the X-ray region. A key limitation of these systems is that the light they emit is mostly classical. Pizzi et al. overcome this constraint by building a quantum-optical theory of strongly driven many-body systems, showing that the presence of correlations among the emitters creates emission of non-classical many-photon states of light. Image credit: DeepAI / Sci.News.

Theoretical Physicists Devise New Path toward High-Energy ‘Quantum Light’

Feb 2, 2023 by News Staff

Physicists have developed a novel theory describing a new state of light, which has controllable quantum properties over a broad range of frequencies,...

This image shows how microlensing was used to measure the mass of the white dwarf LAWD 37. The inset box plots how the dwarf passed in front of a background star in 2019. The wavy blue line traces the dwarf’s apparent motion across the sky as seen from Earth. Image credit: NASA / ESA / Peter McGill, UC Santa Cruz, IoA / Kailash Sahu, STScI / Joseph DePasquale, STScI.

Astronomers Directly Measure Mass of Isolated White Dwarf

Feb 2, 2023 by News Staff

In November 2019, the nearby single, isolated white dwarf LAWD 37 aligned closely with a distant background source and caused a so-called microlensing...

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