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Vikings Abandoned Southwest Greenland Due in Part to Sea-Level Rise, New Research Suggests

Kuitems et al. provide evidence that the Norse were active on the North American continent in the year 1021 CE. Image credit: Oscar C.R.
Apr 18, 2023 by News Staff

The first records of Greenland Vikings date to 985 CE. Archaeological evidence yields insight into how they lived, yet drivers of their disappearance in the 15th century remain enigmatic. Hypotheses include combinations of environmental change, social unrest, and economic disruption. Occupation coincided with a transition from the Medieval Warm Period (900 to 1250 CE) to the Little Ice Age (1250 to 1900 CE) and Southern Greenland Ice Sheet advance....

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JUICE lifted off on an Ariane 5 rocket from Europe’s Spaceport in French Guiana on April 14, 2023. Image credit: M. Pédoussaut / ESA.

ESA’s JUICE Spacecraft Launches to Study Jupiter’s Icy Moons

Apr 17, 2023 by News Staff

ESA’s latest interplanetary mission, the JUpiter ICy Moons Explorer (JUICE), lifted off on an Ariane 5 rocket from Europe’s Spaceport in French...

Life reconstruction of Beesiiwo cooowuse with the pseudosuchian Heptasuchus clarki in the background representing the known fauna from the lower carbonate unit of the Popo Agie Formation, Wyoming, the United States. Image credit: Gabriel Ugueto.

New Species of Rhynchosaur Unearthed in Wyoming

Apr 14, 2023 by Enrico de Lazaro

Paleontologists have identified a new genus and species of hyperodapedontine rhynchosaur from several specimens unearthed in central Wyoming, the United...

Color-composite image of the galaxy cluster RX J2129.6+0005; green circles indicate three lensed images of the dwarf starburst galaxy RX J2129-z95. Image credit: Williams et al., doi: 10.1126/science.adf5307.

Webb Finds Tiny Star-Forming Galaxy in Early Universe

Apr 13, 2023 by Enrico de Lazaro

The newly-discovered galaxy, named RX J2129-z95, appears as three images due to the gravitational lensing of the foreground galaxy cluster RX J2129.6+0005....

New image of M87* generated by the PRIMO algorithm using the 2017 EHT data. Image credit: Medeiros et al., doi: 10.3847/2041-8213/acc32d.

EHT Image of Messier 87’s Black Hole Reconstructed with Novel Machine Learning Algorithm

Apr 13, 2023 by News Staff

The iconic Event Horizon Telescope (EHT) image of the supermassive black hole at the center of Messier 87 has received its first official makeover, thanks...

The cartilage of the little skate (Leucoraja erinacea) is stained with Alcian blue, the bones with Alizarin red. Image credit: David Gold, Lynn Kee & Meghan Morrissey / MBL Embryology Course.

Genome of Enigmatic Little Skate Sequenced

Apr 12, 2023 by News Staff

Skates are cartilaginous fish whose body plan features enlarged wing-like pectoral fins, enabling them to thrive in benthic environments. However, the...

Life reconstruction of the head of Diamantinasaurus matildae. Image credit: Elena Marian.

Nearly Complete Skull of Titanosaur Unearthed in Australia

Apr 12, 2023 by Enrico de Lazaro

Titanosaurian sauropod dinosaurs were diverse and abundant throughout the Cretaceous period, with a global distribution. However, few titanosaurian species...

This Webb image shows Uranus and six of its 27 known moons (most of which are too small and faint to be seen in this short exposure). Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI.

Webb Captures Stunning Images of Uranus and Its Moons

Apr 10, 2023 by News Staff

New images from the NASA/ESA/CSA James Webb Space Telescope show the ice giant Uranus, its faint rings and several moons. This image of Uranus, captured...

Siren sphagnicola, an adult hypertrophic male with a partially regenerated tail. Image credit: Fedler et al., doi: 10.11646/zootaxa.5258.4.1.

New Species of Siren Discovered in the United States

Apr 6, 2023 by Natali Anderson

Siren sphagnicola inhabits seepage areas in the eastern Gulf Coastal Plain of the United States. Siren sphagnicola, an adult hypertrophic male with a partially...

Reconstruction of Maghriboselache mohamezanei in its habitat. Thylacocephalans, cephalopods with orthoconic conchs, placoderms such as Dunkleosteus and osteichthyans populated the water column during the middle Famennian in the Anti-Atlas of Morocco. Image credit: Klug et al., doi: 10.1186/s13358-023-00266-6.

Devonian Shark-Like Fish Had Unique Sensory Specialization

Apr 3, 2023 by Enrico de Lazaro

Paleontologists have described a new genus and species of broad-snouted chondrichthyan fish from several fossilized specimens found in Morocco. Reconstruction...

The rufous-naped bellbird (Aleadryas rufinucha). Image credit: Knud Jønsson.

Ornithologists Identify Two New Species of Toxic Birds

Apr 3, 2023 by Natali Anderson

Most people are familiar with South and Central America’s iconic poison dart frogs, especially the golden poison frog (Phyllobates terribilis), that...

The 10th-century BCE inscribed pithos from the Ophel, Israel. Image credit: Daniel Vainstub / Eilat Mazar.

Sabaean Inscription Points to Connections between King Solomon’s Israel and Kingdom of Sheba

Apr 3, 2023 by Enrico de Lazaro

During the 2012 excavations in Jerusalem, Israel, a partially preserved inscription engraved on the shoulder of a pithos was found in a context dated to...

To investigate plants’ airborne sound emissions, Khait et al. constructed a reliable recording system, where each plant is recorded simultaneously by two microphones; first, they recorded plants within an acoustic box and developed machine learning algorithms to classify the recorded sounds; then they tested the system in a greenhouse, while monitoring physiological parameters of the recorded plants. Image credit: Kie-Ker.

Plants Emit Ultrasonic Sounds When Stressed, Groundbreaking Study Shows

Mar 31, 2023 by News Staff

In new research, biologists at Tel Aviv University recorded ultrasonic sounds emitted by tomato and tobacco plants inside an acoustic chamber, and in a...

An artist’s impression of Mukupirna nambensis living in central Australia that was much greener 25 million years ago. Image credit: Peter Schouten.

Strange Wombat Relative Once Lived in Australia

Mar 30, 2023 by Enrico de Lazaro

Mukupirna fortidentata looked a bit like a modern wombat crossed with a marsupial lion (Thylacoleo carnifex). An artist’s impression of Mukupirna nambensis...

This map shows shield volcanoes on Venus. Image credit: Rebecca Hahn, Washington University in St. Louis.

Venus is Home to At Least 85,000 Volcanoes, Planetary Researchers Say

Mar 30, 2023 by News Staff

There are many thousands of volcanoes on the surface of Venus. These volcanoes provide clues into the interior properties of the planet, properties that...

Life reconstruction of Ektopodon serratus (top left), a relative of Chunia pledgei, and the marsupial lion Wakaleo oldfieldi (right). Image credit: Peter Schouten / CC BY-SA.

Bizarre Possum Species Lived in Australia 25 Million Years Ago

Mar 29, 2023 by Enrico de Lazaro

A new species of ektopodontid possum has been described from Oligocene-age fossils found in central Australia. Life reconstruction of Ektopodon serratus...

This image shows the strong-lensing galaxy Abell 1201 BCG and a gravitational arc. Image credit: NASA / ESA / Hubble / Nightingale et al., doi: 10.1093/mnras/stad587.

Astronomers Discover Ultramassive Black Hole in Abell 1201

Mar 29, 2023 by Natali Anderson

The newly-discovered ultramassive black hole has a mass of 32.7 billion solar masses and resides in the center of Abell 1201 BCG, a massive elliptical...

A large stream of meltwater (about 5 to 10 m in width) emerges from an upstream supraglacial lake in the Greenlandic ice on July, 21 2012. The darker shapes are minor streams covered by cryoconite (a mix of dust particles, soot, meteorite dust and organic material) which covers the ice sheet. Cracks cutting through the streams are visible. Along these cracks water can flow through, enlarging them and, eventually, generating moulins that can deliver meltwater through the ice. Image credit: M. Tedesco / CCNY / NASA ICE.

Greenland Ice Sheet Very Close to Melting Point of No Return, Scientists Say

Mar 28, 2023 by News Staff

With ongoing carbon dioxide emissions from the burning of fossil fuels, the atmosphere of Earth heats up, which has dramatic consequences for the ice sheets....

The TRAPPIST-1 system is remarkable for its seven planets that are similar in size, mass, density, and stellar heating to the rocky planets Venus, Earth, and Mars in our own Solar System. This illustration shows what the rocky planet TRAPPIST-1b could look like based on the new study. Image credit: NASA / ESA / CSA / J. Olmsted, STScI.

Webb Measures Temperature of TRAPPIST-1b

Mar 28, 2023 by News Staff

The dayside of TRAPPIST-1b, the innermost planet in the seven-planet system TRAPPIST-1, has a temperature of about 227 degrees Celsius (441 degrees Fahrenheit),...

Life reconstruction of Dama celiae in the Manzanares valley, Spain; other species present are Anas platyrhynchos, Equus ferus, Elephas antiquus, Mauremys leprosa, Bison sp., Bos primigenius, and Stephanorhinus hemitoechus. Image credit: J. Gamarra.

Fallow Deer with Two-Pointed Antlers Lived alongside Neanderthals

Mar 27, 2023 by Enrico de Lazaro

Paleontologists have described an extinct species of the fallow deer genus Dama from fossils found in Spain. Life reconstruction of Dama celiae in the...

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