Articles by Enrico de Lazaro

Zeta Ophiuchi was once in close orbit with another star, before being ejected when this companion was destroyed in a supernova explosion; infrared data from Spitzer reveal a spectacular shock wave (red and green) that was formed by matter blowing away from the star’s surface and slamming into gas in its path; data from Chandra (blue) show a bubble of X-ray emission located around the star, produced by gas that has been heated by the shock wave to tens of millions of degrees. Image credit: NASA / CXC / University of Cambridge / Sisk-Reynés et al. / NSF / NRAO / VLA / PanSTARRS.

Chandra Takes New Look at Giant Runaway Star Zeta Ophiuchi

Jul 26, 2022 by Enrico de Lazaro

Zeta Ophiuchi is a very massive, hot, bright blue star that once had a companion that exploded as a supernova. Zeta Ophiuchi was once in close orbit with...

The wing bone of the Bannockburn swan (Notochen bannockburnensis). Scale bars - 20 mm. Image credit: Worthy et al., doi: 10.11646/zootaxa.5168.1.3.

Fossil of Ancient Swan Species Found in New Zealand

Jul 25, 2022 by Enrico de Lazaro

A new genus and species of anatid bird has been identified from a fossilized wing bone found in Central Otago, New Zealand. The wing bone of the Bannockburn...

Drought may have led to an increase in civil conflict followed by political collapse in Mayapan, the capital of the Maya in the Yucatán Peninsula in the 13th and 14th centuries CE. Image credit: Bradley Russell.

Study: Prolonged Drought Played Key Role in Collapse of Mayan Capital City

Jul 20, 2022 by Enrico de Lazaro

Mayapan emerged as a regional Maya capital on the Yucatán Peninsula, following the demise of Chichen Itza between 1000 and 1100 CE. Drought may have...

This Hubble image shows the gravitationally lensed galaxy SGAS J143845+145407. Gravitational lensing has resulted in a mirror image of SGAS J143845+145407 at the center of the image, creating a captivating centerpiece. Image credit: Hubble / ESA / NASA / J. Rigby.

Strong Gravitational Lens Shows Same Galaxy Two Times

Jul 18, 2022 by Enrico de Lazaro

The striking new photo from the NASA/ESA Hubble Space Telescope features the gravitationally lensed galaxy SGAS J143845+145407. This Hubble image shows...

Paleozoic lungfish endocasts in dorsal, ventral, and left lateral views. Image credit: Clement et al., doi: 10.7554/eLife.73461.

New Research Sheds More Light on Lungfish Brain Evolution

Jul 12, 2022 by Enrico de Lazaro

In the new research, paleontologists described and illustrated the endocasts (braincases) of six Paleozoic lungfish species from superb 3D fossil material,...

Reconstruction of a pair of Stanleycaris hirpex. Image credit: Sabrina Cappelli, Royal Ontario Museum.

Three-Eyed Cambrian Animal Sheds Light on Origin of Arthropod Head and Segmentation

Jul 11, 2022 by Enrico de Lazaro

Paleontologists from the University of Toronto and the Royal Ontario Museum have examined 268 specimens of Stanleycaris hirpex — a radiodont that...

This Hubble image shows the globular cluster Terzan 2. Image credit: NASA / ESA / Hubble / R. Cohen.

Hubble Space Telescope Captures Image of Terzan 2

Jul 11, 2022 by Enrico de Lazaro

The new image taken with the NASA/ESA Hubble Space Telescope provides a detailed look at Terzan 2, a globular cluster located in the constellation of Scorpius. This...

New Giant Carnivorous Dinosaur Unearthed in Argentina

Jul 7, 2022 by Enrico de Lazaro

Meraxes gigas, a huge meat-eating dinosaur that lived in Argentina some 94 million years ago, had short arms like Tyrannosaurus rex. Meraxes gigas. Image...

Zuber et al. observed a new type of molecular ion based on the interaction between a neutral Rydberg atom and a charged ion with a bond length of several micrometers. Image credit: Zuber et al., doi: 10.1038/s41586-022-04577-5.

Physicists Observe New Type of Molecular Bond

Jul 7, 2022 by Enrico de Lazaro

Rydberg atoms — atoms with a highly excited electron — can form unusual types of molecular bonds. These bonds differ from the well-known ionic...

305-Million-Year-Old Fossil is Oldest Known Tree-Climbing Reptile

Jul 6, 2022 by Enrico de Lazaro

A new genus and species of varanopid eupelycosaur that lived during the Carboniferous period — the oldest tree-climbing reptile on record —...

This Hubble image shows LEDA 17532, a multi-armed galaxy merger some 520 million light-years away in the constellation of Orion. Image credit: NASA / ESA / Hubble / W. Keel.

Hubble Observes Multi-Armed Galaxy Merger

Jul 4, 2022 by Enrico de Lazaro

The Hubble team has released an incredibly beautiful image of a peculiar galaxy called LEDA 17532. This Hubble image shows LEDA 17532, a multi-armed galaxy...

This Hubble image shows the outskirts of the Tarantula Nebula. Image credit: NASA / ESA / Hubble / Josh Barrington.

Hubble Spots Glowing Plumes in Tarantula Nebula

Jun 30, 2022 by Enrico de Lazaro

NASA has released a beautiful photo taken by the Hubble Space Telescope of the outskirts of the Tarantula Nebula, which is located in the Large Magellanic...

An artist’s impression of Nombe nombe (right) and other prehistoric animals from Nombe Rockshelter, Papua New Guinea. Image credit: Peter Shouten.

Giant Kangaroos Lived in Papua New Guinea during Pleistocene

Jun 30, 2022 by Enrico de Lazaro

Paleontologists have redescribed an extinct species of giant kangaroo that lived the mountains of Papua New Guinea about 50,000 to 20,000 years ago and...

This Hubble image shows NGC 6569, a globular cluster located in the constellation of Sagittarius. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3). Three filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / R. Cohen.

Hubble Sees Sparkling Globular Cluster in Milky Way’s Bulge

Jun 27, 2022 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced a spectacularly detailed image of the Galactic bulge globular cluster NGC 6569. This Hubble image shows...

Schematic illustration of the quasi-elastic reaction investigated by Duer et al. Top: quasi-elastic scattering of the helium-4 (4He) core from a helium-8 (8He) projectile off a proton target in the laboratory frame. The length of the arrows represents the momentum per nucleon (the velocity) of the incoming and outgoing particles. Zbeam is the beam axis. Bottom: the equivalent p-4He elastic scattering in their center-of-mass frame, where we consider reactions at backward angles close to 180°. In this frame, the momentum of the proton balances that of 4He, Pp=−P4He, that is, the proton is four times faster than 4He. Image credit: Duer et al., doi: 10.1038/s41586-022-04827-6.

Physicists Observe Elusive Four-Neutron System: Tetraneutron

Jun 23, 2022 by Enrico de Lazaro

Physicists using the Superconducting Analyzer for Multi-particles from Radio Isotope Beams (SAMURAI) in Japan have experimentally observed a resonance-like...

A head of a marble statue found at the Antikythera shipwreck. Image credit: Nikos Giannoulakis.

Antikythera Shipwreck Yields New Trove of Artifacts

Jun 22, 2022 by Enrico de Lazaro

Marine archaeologists have recovered a number of new artifacts, including a head of a Marble statue and numerous items from the ship’s equipment, from...

Field photograph of the pathologic ovum-in-ovo egg documented from the Lameta Formation of village Padlya, Dhar District, Madhya Pradesh, India. Two slightly partially broken circular eggshell outlines can be seen with broken eggshell fragments within. A crescent-shaped gap is characteristically present in the upper right part of the egg. Image credit: Dhiman et al., doi: 10.1038/s41598-022-13257-3.

Unique Titanosaur Egg-Inside-Egg Found in India

Jun 22, 2022 by Enrico de Lazaro

Paleontologists have found a fossilized egg within another egg — a condition known as ovum-in-ovo — of a titanosaurid dinosaur in central India....

This Hubble image shows the massive galaxy cluster Abell 1351. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS). Several filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / H. Ebeling / L. Shatz.

Hubble Focuses on Lensing Galaxy Cluster Abell 1351

Jun 20, 2022 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced this beautiful image of the massive and rich galaxy cluster Abell 1351. This Hubble image shows the massive...

Tartarocyon cazanavei. Image credit: Denny Navarra.

Gigantic Bear-Dogs Lived in France 12 Million Years Ago

Jun 16, 2022 by Enrico de Lazaro

Paleontologists have described a new species of large-sized amphicyonid carnivore from a fossilized mandible found in France. Tartarocyon cazanavei. Image...

A cat (Felis catus) licks and chews silver vine (Actinidia polygama) leaves. Image credit: Masao Miyazaki & Reiko Uenoyama.

Plant-Damaging Behavior Plays Important Role in Gaining Pest-Repellency in Cats: Study

Jun 15, 2022 by Enrico de Lazaro

New research provides evidence that the physical damage of catnip (Nepeta cataria) and silver vine (Actinidia polygama) leaves by feline licking and chewing...

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