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Chandra Takes New Look at Giant Runaway Star Zeta Ophiuchi

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.
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 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...

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Alsophila spinulosa. Image credit: Quanzi Li.

Scientists Sequence Genome of Flying Spider-Monkey Tree Fern

Jul 26, 2022 by News Staff

The flying spider-monkey tree fern, scientifically known as Alsophila spinulosa, is a species of tree fern widely distributed across Asia. Alsophila spinulosa....

(a) Location of the Buckskin mudstone sample (red star) in Gale Crater, Mars; (b and c) images from the Mars Hand Lens Imager onboard the Curiosity rover of (b) Lamoose, a local float block adjacent to Buckskin within the Murray formation showing laminations, and (c) Buckskin. Image credit: NASA / JPL-Caltech / University of Arizona.

Rare Mineral from Martian Crater was Created in Explosive Volcanic Eruption Over 3 Billion Years Ago

Jul 26, 2022 by News Staff

Tridymite is a high-temperature, low-pressure form of quartz that is extremely rare on Earth, and it wasn’t clear how a chunk of it ended up in Gale...

Tyrannosaurus rex. Image credit: Mark Witton.

Study: Insufficient Evidence for Three Tyrannosaurus Species

Jul 25, 2022 by News Staff

In March 2022, College of Charleston’s Professor Scott Persons and colleagues suggested that Tyrannosaurus rex should be reclassified as three species:...

The whale shark (Rhincodon typus). Image credit: Andre Rerekura, Whaleshark Research.

Whale Shark is World’s Largest Omnivore, New Study Shows

Jul 25, 2022 by News Staff

The whale shark (Rhincodon typus), which have been reported up to 18 m long, is the largest known extant fish species. This creatrure is a filter feeder...

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...

Gloydius lateralis. Image credit: Sheng-chao Shi.

Researchers Discover New Species of Venomous Snake in China

Jul 25, 2022 by Natali Anderson

Scientists from the Institute of Vertebrate Paleontology and Paleoanthropology at the Chinese Academy of Sciences have discovered a new species of the...

This Hubble image shows three galaxies LEDA 58109, SDSS J162558.14+435746.4, and SDSS J162557.25+435743.5. The color image is composed of infrared, optical and ultraviolet observations from Hubble’s Advanced Camera for Surveys (ACS), the Dark Energy Camera (DECam) on the Victor M. Blanco 4-m Telescope, and the Sloan Digital Sky Survey (SDSS). Nine 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 / W. Keel.

Hubble Sees Group of Galaxies in Hercules

Jul 25, 2022 by News Staff

A new image from the NASA/ESA Hubble Space Telescope shows several spiral and irregular galaxies in the constellation of Hercules. This Hubble image shows...

Images of WISE 1810 from the UKIDSS Galactic Plane Survey (left) and NOT ALFOSC (right). The object is indicated by a red arrow. North is up and east left. Each image is about 80 arcsec across. Image credit: Lodieu et al., doi: 10.1051/0004-6361/202243516.

Astronomers Find Ancient Brown Dwarf in Solar Neighborhood

Jul 22, 2022 by Natali Anderson

WISE 1810055-1010023 (WISE 1810 for short), a metal-poor brown dwarf located 8.9 parsecs (29 light-years) away, is nearly 10 billion years old. Images...

A mammaliamorph breathing out hot hair in a frigid night, hinting at endothermy. Image credit: Luzia Soares.

Warm-Bloodedness Appeared in Mammalian Ancestors 233 Million Years Ago, Study Suggests

Jul 22, 2022 by News Staff

Among modern animals, only mammals and birds are warm-blooded, and the ability to keep ourselves warm has enabled mammals to survive in icy weather and...

A molecular phylogeny of Lepidoptera indicating antipredator ultrasound production across the order. Image credit: Barber et al., doi: 10.1073/pnas.2117485119.

Moths Produce Ultrasonic Defensive Sounds to Fend Off Bat Predators

Jul 22, 2022 by News Staff

Scientists from Boise State University and elsewhere have tested 252 genera from most families of large-bodied moths. Their results show that ultrasound-producing...

Ausichicrinites zelenskyyi. Image credit: Salamon et al., doi: 10.1098/rsos.220345.

Feather Star from Jurassic Period Named after President Zelenskyy

Jul 21, 2022 by Natali Anderson

Ausichicrinites zelenskyyi, the first Jurassic comatulid (feather star) from the African continent, has been named in honor of Volodymyr Zelenskyy, the...

An artist’s rendering of Jupiter with rings that rival Saturn’s. Image credit: Stephen Kane / University of California, Riverside.

Study: Massive Galilean Moons Prevented Formation of Giant Ring System around Jupiter

Jul 21, 2022 by News Staff

Planetary rings are often speculated as being a relatively common attribute of giant planets, partly based on their prevalence within the Solar System....

This image, captured by the High Resolution Stereo Camera (HRSC) onboard ESA’s Mars Express on April 21, 2022, shows Ius and Tithonium Chasmata, which form part of Mars’ Valles Marineris canyon structure. Image credit: ESA / DLR / FU Berlin.

Mars Express Spots Two Huge Canyons in Valles Marineris

Jul 21, 2022 by News Staff

The new image from the High Resolution Stereo Camera (HRSC) aboard ESA’s Mars Express spacecraft shows sections of Ius Chasma and Tithonium Chasma —...

The global map of hydrogen abundances on the Moon after corrections for rare-earth element variations were made to the measured epithermal neutron data, and the count rates were calibrated using the linear relation. Image credit: Lawrence et al., doi: 10.1029/2022JE007197.

Scientists Create Global Map of Hydrogen Abundances across Moon

Jul 21, 2022 by News Staff

The new global map of bulk hydrogen abundances on the Moon’s surface allows planetary researchers to address many previously unexplored areas in the...

Moncrieff et al. suggest that depression is not likely caused by a chemical imbalance, and call into question what antidepressants do. Image credit: Chenspec.

Serotonin Theory of Depression Debunked

Jul 21, 2022 by News Staff

In a systematic umbrella review of previous relevant studies, a team of scientists from the United Kingdom, Switzerland and Italy synthesized and evaluated...

An assistant referee with a flag. Image credit: Chiraphat Phaungmala.

Soccer’s VAR Technology Is Not Precise Enough to Make Accurate Offside Decisions, Study Says

Jul 20, 2022 by News Staff

New research suggests that Video Assistant Referee (VAR) technology in soccer is useful for preventing obvious mistakes but is not precise enough to give...

Desmognathus gvnigeusgwotli in life, from Straight Fork, Great Smoky Mountains, North Carolina. Image credit: Todd Pierson, Kennesaw State University.

Three New Cryptic Salamander Species Discovered

Jul 20, 2022 by News Staff

All of the three new species belong to the salamander genus Desmognathus and are found in the southern Appalachian Mountains of the eastern United States,...

Mount Piramagrun, showing the location of the main Rabana and Merquly settlements. Image credit: Michael Brown / Rabana-Merquly Archaeological Project.

Archaeologists Find Parthian-Era Fortress in Iraqi Kurdistan

Jul 20, 2022 by News Staff

The mountain fortress of Rabana-Merquly was one of the major regional centers of the Parthian Empire, according to new research led by Heidelberg University. Mount...

An artist’s reconstruction of Qikiqtania wakei (center) in the water with its larger cousin, Tiktaalik roseae. Image credit: Alex Boersma.

Devonian Four-Legged ‘Fishapod’ Unearthed in Canada

Jul 20, 2022 by News Staff

Qikiqtania wakei closely resembles Tiktaalik roseae — the important transitional animal considered a missing link between fish and the earliest limbed...

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