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5,600-Year-Old Stone Bridge Indicates Early Human Arrival in Spain’s Mallorca

The 5,600-year-old submerged stone bridge in Genovesa Cave, Mallorca, Spain. Image credit: R. Landreth.
Aug 30, 2024 by News Staff

Archaeologists have discovered an ancient submerged stone bridge in Genovesa Cave on Mallorca, the main island of the Balearic Archipelago and the sixth largest in the Mediterranean Sea. The discovery suggests that humans settled the western Mediterranean much earlier than previously believed. The 5,600-year-old submerged stone bridge in Genovesa Cave, Mallorca, Spain. Image credit: R. Landreth. Reconstructing early human colonization of the Balearic...

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This Hubble image shows NGC 261, an emission nebula some 200,000 light-years away from Earth in the constellation of Tucana. Image credit: NASA / ESA / L.C. Johnson, Northwestern University / Gladys Kober, NASA & Catholic University of America.

Hubble Observes Emission Nebula in Small Magellanic Cloud: NGC 261

Aug 30, 2024 by Enrico de Lazaro

NGC 261 resides within the Small Magellanic Cloud, one of our Milky Way Galaxy’s closest neighbors. This Hubble image shows NGC 261, an emission nebula...

The 2,700-year-old stone seal found in Jerusalem, Israel. Image credit: Emil Aladjem, Israel Antiquities Authority.

2,700-Year-Old Stone Seal Unearthed in Israel

Aug 29, 2024 by News Staff

Archaeologists from the Israel Antiquities Authority have discovered a stone seal from the First Temple period near the Southern Wall of the Temple Mount...

Tiger sharks are starting to gather to take an easy piece of the large prey, as a crocodylian attacks the ancient dugongid sirenian mammal Culebratherium. Image credit: Jaime Bran Sarmiento.

Miocene-Period Dugong Was Eaten by Crocodile and Tiger Sharks, Paleontologists Say

Aug 29, 2024 by News Staff

Paleontologists have unearthed a 20-million-year-old fossilized skeleton of a species of the dugongid sirenian mammal Culebratherium with shark and crocodylian...

Collinson et al. report the existence of a +0.55 ± 0.09 V electric potential drop between 250 km and 768 km from a planetary electrostatic field generated exclusively by the outward pressure of ionospheric electrons; they experimentally demonstrate that the ambipolar field of Earth controls the structure of the polar ionosphere, boosting the scale height by 271%. Image credit: NASA.

NASA’s Endurance Mission Measures Earth’s Ambipolar Electric Field for First Time

Aug 28, 2024 by News Staff

First hypothesized more than 60 years ago, the ambipolar electric field is a key driver of the polar wind, a steady outflow of charged particles into space...

While circumnutations are ubiquitous in plant systems, and generally associated with exploratory movements, a quantitative understanding of their role is elusive. Nguyen et al. report, for the first time, their role in facilitating an optimal growth pattern for a crowded group of mutually shading plants. Image credit: Manuel H.

Study: Crowded Groups of Mutually Shading Plants ‘Dance’ Together to Share Sunlight

Aug 28, 2024 by News Staff

Typically, plants grow in crowded environments, where neighboring plants shade each other while competing for light. The presence of neighbors varies over...

The Battle of Orsha by Hans Krell.

Landscape of Fear: Fear of Violent Conflicts Influenced Development of Non-State Societies in Ancient Europe

Aug 28, 2024 by News Staff

The impact of inter-group conflict on population dynamics has long been debated, especially for prehistoric and non-state societies. In their work, scientists...

The Triangulum Galaxy is the third largest galaxy in our Local Group of galaxies. Image credit: NASA / ESA / M. Boyer, STScI / J. Dalcanton, University of Washington / Gladys Kober, NASA & Catholic University of America.

Hubble Sees Central Region of Triangulum Galaxy

Aug 28, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have taken a detailed image of a spectacular central part of the Triangulum Galaxy. The Triangulum...

A nucleosome composed of DNA (gray) and histones (blue) with a single hemimethylated cytosine bound by CDCA7 (purple). Image credit: Kyohei Arita / Yiming Niu.

Scientists Discover New Sensor for DNA Methylation

Aug 28, 2024 by News Staff

DNA methylation is a broadly observed epigenetic modification in living systems, playing diverse functions in transcriptional regulation, transposable...

An abelisaurid tooth associated with the holotype specimen of Caletodraco cottardi. Image credit: Buffetaut et al., doi: 10.3390/fossils2030009.

New Abelisaurid Dinosaur Species Discovered in France

Aug 27, 2024 by Enrico de Lazaro

Paleontologists have added another species to the Cretaceous-period dinosaur fauna of Europe, and this one was found in Normandy, France. An abelisaurid...

The Pegasus dwarf spheroidal galaxy resides around 959,000 light-years away from the Andromeda Galaxy. Image credit: NASA / ESA / D. Weisz, University of California – Berkeley / Gladys Kober, NASA & Catholic University of America.

Hubble Zooms In On Pegasus Dwarf Spheroidal Galaxy

Aug 27, 2024 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured this spectacular image of the Pegasus dwarf spheroidal galaxy, a satellite of the Andromeda galaxy. The...

This artist’s impression shows the locations of multiple radio observatories across the planet, which participated in a pilot experiment conducted by the EHT Collaboration that obtained the highest-resolution observations from the ground. Image credit: ESO / M. Kornmesser.

EHT Makes Highest-Resolution Black Hole Detections Yet from Earth

Aug 27, 2024 by News Staff

Astrophysicists with the Event Horizon Telescope (EHT) Collaboration have conducted test observations achieving the highest resolution ever obtained from...

At an estimated mass of 5 Jupiter masses, NIRISS-NGC1333-5 (also known as NN5) is a good candidate to be the lowest-mass object found in NGC 1333 thus far and the lowest-mass object with a disk in any region identified to date. Image credit: Langeveld et al., doi: 10.3847/1538-3881/ad6f0c.

Webb Discovers Six Free-Floating Exoplanets in NGC 1333

Aug 27, 2024 by News Staff

Using the Near-Infrared Imager and Slitless Spectrograph (NIRISS) instrument on the NASA/ESA/CSA James Webb Space Telescope, astronomers have discovered...

This graphic shows Juno’s model for radiation intensity at different points in the spacecraft’s orbit around Jupiter. Image credit: NASA / JPL-Caltech / DTU.

Planetary Reseachers Create 3D Radiation Map of Jovian System

Aug 27, 2024 by News Staff

Using data gathered by the Advanced Stellar Compass (ASC) and the Stellar Reference Unit (SRU) onboard NASA’s Juno orbiter, scientists have produced...

This illustration shows what the activities of a Kardashev Type III civilisation might look like - encapsulating the energy of stars by so-called Dyson spheres is one way to harness enormous energies on galactic scales; the resulting waste heat products should be detectable by telescopes. Image credit: Danielle Futselaar / ASTRON.

Murchison Widefield Array Searches for Extragalactic Alien Technosignatures

Aug 26, 2024 by Natali Anderson

Astronomers using the Murchison Widefield Array in Western Australia have searched for alien signals at a 10 kHz spectral resolution originating from a...

Composite-color image of A2744-QSO1. Image credit: Furtak et al., doi: 10.1038/s41586-024-07184-8.

Early Galaxies Were Less Massive than Previously Thought

Aug 26, 2024 by News Staff

In a paper published today in the Astronomical Journal, astronomers analyzed the evolution of massive galaxies at redshifts of 4-8 selected from the JWST...

Venus in real colors, processed from Mariner 10 images. Image credit: Mattias Malmer / NASA.

Venus Express Detects Unexpected Increase of Deuterium to Hydrogen Ratio in Venusian Mesosphere

Aug 26, 2024 by News Staff

Although Venus is sometimes referred to as Earth’s twin, its current surface conditions are drastically different, making it inhospitable to life. Not...

This Hubble image shows UGC 3478, a spiral galaxy located 128 million light-years away in the constellation of Camelopardalis. Image credit: NASA / ESA / Hubble / M. Koss / A. Barth.

Hubble Space Telescope Gazes at UGC 3478

Aug 26, 2024 by Enrico de Lazaro

A stunning new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at the spiral galaxy UGC 3478. This Hubble image shows UGC...

A long ornithopod trackway at Passagem das Pedra, Sousa Basin preserved in floodplain deposits of Lower Cretaceous. Image credit: Ismar de Souza Carvalho / SMU.

Paleontologists Discover Matching Sets of Dinosaur Footprints in Africa and South America

Aug 26, 2024 by News Staff

A team of paleontologists led by Southern Methodist University has discovered more than 260 footprints of Early Cretaceous dinosaurs in Brazil and in Cameroon,...

Artistic reconstruction of Beorn leggi (top) and Aerobius dactylus (bottom) in a hypothetical fossilization environment. Image credit: Franz Anthony.

Cretaceous Amber Fossils Shed New Light on Evolutionary Origin of Tardigrades

Aug 23, 2024 by News Staff

Tardigrades are a diverse group of microscopic invertebrates widely known for their extreme survival capabilities. Molecular clocks suggest that tardigrades...

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