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Super-Earths and Sub-Neptunes Contain Much More Water than Previously Thought

An artist’s impression of the super-Earth exoplanet HD 164922d. Image credit: Sci-News.com.
Aug 23, 2024 by News Staff

Water is an important component of exoplanets, with its distribution, that is, whether at the surface or deep inside, fundamentally influencing the planetary properties. According to new research, for Earth-size planets and planets more massive than 6 times the mass of Earth, the majority of water resides deep in the cores of planets. The majority of water can be stored deep within the exoplanet’s core and mantle, and not at the surface. Image...

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Life reconstruction of Alpkarakush kyrgyzicus. Image credit: Joschua Knüppe.

New Carnivorous Dinosaur Species Unearthed in Kyrgyzstan

Aug 22, 2024 by Enrico de Lazaro

A new genus and species of large theropod dinosaur being named Alpkarakush kyrgyzicus has been discovered in the Middle Jurassic Balabansai Formation in...

An artistic representation of antihyperhydrogen-4 created in a collision of two gold nuclei. Image credit: Institute of Modern Physics.

Physicists Observe Antihyperhydrogen-4 for First Time

Aug 22, 2024 by News Staff

Physicists from the STAR Collaboration have observed the antimatter hypernucleus antihyperhydrogen-4 — composed of an antihyperon, an antiproton...

Clovis points with distinctive flute or channel flake scars. Image credit: S. Byram.

Study: Clovis People Used Planted Pikes for Hunting of Megaherbivores

Aug 21, 2024 by News Staff

Historical and ethnographic sources depict use of portable braced shaft weapons, or pikes, in megafauna hunting and defense during Late Holocene millennia...

This artist’s impression displays TRAPPIST-1 and its planets reflected in a surface. Image credit: NASA / R. Hurt / T. Pyle.

TRAPPIST-1 System Was Formed in Two Steps, Study Suggests

Aug 21, 2024 by News Staff

TRAPPIST-1, an ultracool dwarf star located 38.8 light-years away in the constellation of Aquarius, hosts seven planets. The period ratios of neighboring...

Several animal species use tools for foraging; however, very few manufacture and/or modify those tools. Humpback whales, which manufacture bubble-net tools while foraging, are among these rare species. Using animal-borne tag and unoccupied aerial system technologies, Szabo et al. examine bubble-nets manufactured by solitary humpback whales (Megaptera novaeangliae) in Southeast Alaska while feeding on krill. They demonstrate that the nets consist of internally tangential rings and suggest that whales actively control the number of rings in a net, net size and depth and the horizontal spacing between neighboring bubbles. They argue that whales regulate these net structural elements to increase per-lunge prey intake by, on average, sevenfold. Image credit: Szabo et al., doi: 10.1098/rsos.240328.

Humpback Whales Wield and Manufacture Their Own Tools

Aug 21, 2024 by News Staff

Humpback whales (Megaptera novaeangliae) create the so-called ‘bubble-net tools’ to hunt, but researchers from the University of Hawai’i and the...

This Hubble image shows UGC 4879, an irregular dwarf galaxy some 3.6 million light-years away in the constellation of Ursa Major. Image credit: NASA / ESA / Hubble / K. Chiboucas, NOIRLab & Gemini North / M. Monelli, Instituto de Astrofisica de Canarias / Gladys Kober, NASA & Catholic University of America.

Hubble Space Telescope Snaps New Image of UGC 4879

Aug 21, 2024 by Enrico de Lazaro

The Hubble astronomers have released a stunning new image snapped by the NASA/ESA Hubble Space Telescope of the dwarf irregular galaxy UGC 4879. This Hubble...

Hare Indian dog, lithograph by John Woodhouse Audubon.

Ancient mtDNA Reveals Presence of Indigenous Dogs at Jamestown Colony in Early 17th Century

Aug 20, 2024 by News Staff

Multiple studies have demonstrated that European colonization of the Americas led to the extinction of nearly all North American dog mitochondrial lineages...

This false-color image of Polaris, captured by the CHARA Array in April 2021, reveals large bright and dark spots on the star’s surface. Image credit: Evans et al., doi: 10.3847/1538-4357/ad5e7a.

Astronomers Find Spots on Surface of Polaris

Aug 20, 2024 by News Staff

Astronomers using the Center for High Angular Resolution Astronomy (CHARA) Array have observed Polaris, a member of a triple system and the nearest and...

Gaidropsarus mauritanicus seeking shelter under the branched, whitish bryozoan Celleporina cf. lucida. Image credit: Tomas Lundälv, University of Gothenburg.

Marine Biologists Discover New Species of Fish in Mauritanian Waters

Aug 20, 2024 by Natali Anderson

A new species of three-bearded rockling has been described from one specimen collected using a grab sample from the Tanoûdêrt Canyon off Mauritania at...

Air pollution is increasing the severity of summertime thunderstorms. Image credit: ELG21.

Air Pollution Can Increase Severity of Summertime Thunderstorms, Study Says

Aug 20, 2024 by Enrico de Lazaro

Scientists from James Madison University have performed a multi-variable investigation of thunderstorm environments in two distinct geographic regions:...

An artistic reconstruction of a hunter-gatherer group from the Ice Age. Image credit: Tom Björklund.

Climate Change Influenced Demography of Prehistoric Hunter-Gatherers, New Research Reveals

Aug 20, 2024 by News Staff

Using a large assemblage of human fossils from Ice Age Europe, paleoanthropologists have identified a population turnover in Western Europe at 28,000 years...

Life reconstruction of a pair of Agapornis longipes feeding on the ground in the Early Pleistocene of the Cradle of Humankind, Gauteng, South Africa, during the dry season. Image credit: Martina Cadin.

Prehistoric Lovebirds Lived in Cradle of Humankind 2.5 Million Years Ago

Aug 19, 2024 by Natali Anderson

Paleontologists have found the fossilized bones from a new species of the parrot genus Agapornis at three localities of the UNESCO World Heritage site...

The South American lungfish (Lepidosiren paradoxa). Image credit: Katherine Seghers, Louisiana State University.

South American Lungfish Has Largest Animal Genome Sequenced So Far

Aug 19, 2024 by Enrico de Lazaro

Researchers from the University of Konstanz and elsewhere have sequenced the genomes of the African (Protopterus annectens) and South American lungfishes...

This composite image shows RCW 106, a star-forming region located in the southern constellation Norma, approximately 12,000 light-years away from Earth. The image imposes a red map of dense gas, imaged with the ArTéMiS camera at APEX, over an optical image taken with ESO’s VLT Survey Telescope. Image credit: ESO / M. Mattern et al.

Denser Molecular Clouds Are Not More Efficient at Forming Stars, Astrophysicists Say

Aug 19, 2024 by Natali Anderson

Despite recent progress, the question of what regulates the star formation efficiency in galaxies remains one of the most debated problems in astrophysics....

Higher UV exposures were associated with lower all-cause, cardiovascular and cancer mortality.

Exposure to Higher UV Levels Boosts Health in Low-Sunlight Countries, New Study Suggests

Aug 19, 2024 by News Staff

New research suggests that UK Biobank participants who use solariums and who live at locations with higher annual average residential shortwave radiation...

This Hubble image shows UGC 11861, a barred spiral galaxy located 69 million light-years away from Earth in the constellation of Cepheus. Image credit: NASA / ESA / Hubble / C. Kilpatrick.

Hubble Space Telescope Captures Image of Little-Known Barred Spiral Galaxy

Aug 19, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced a beautiful image of the barred spiral galaxy UGC 11861. This Hubble image shows UGC...

Ankylosaurus magniventris, a large armored dinosaur species, witnesses the impact of an asteroid, falling on the Yucatan peninsula 66 million years ago. Image credit: Fabio Manucci.

Dinosaur-Killing Chicxulub Asteroid Came from beyond Jupiter: Study

Aug 16, 2024 by News Staff

The so-called Chicxulub impactor was a carbonaceous-type asteroid that had formed beyond the orbit of Jupiter, according to a new paper published in the...

Keogram of (a) all-sky camera and (b) HySCAI, and (c) time evolution of space-averaged spectrum of aurora emission measured by HySCAI on October 20-21, 2023. Image credit: Yoshinuma et al., doi: 10.1186/s40623-024-02039-y.

Researchers Capture First Two-Dimensional Spectral Images of Aurorae

Aug 16, 2024 by News Staff

Two-dimensional (2D) aurora images with full spectrum have been captured by scientists in Japan using the newly-developed hyperspectral camera for auroral...

Illustration of Isityumzi mlomomde (lower right) and other Late Devonian freshwater ecosystem creatures including the early tetrapod Unzantsia. Image credit: Maggie Newman.

Triassic Lungfish Fossils Discovered in Zimbabwe

Aug 16, 2024 by Enrico de Lazaro

A new species of ancient lungfish from the Triassic period has been identified from fossilized tooth plate material found in the Mid-Zambezi Basin, Zimbabwe. Life...

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