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Webb Probably Didn’t Detect Biosignature Gas on K2-18b

Rendering of the likely view on a Hycean world. Image credit: Shang-Min Tsai / UCR.
May 2, 2024 by News Staff

In 2023, astronomers reported a tentative detection of dimethyl sulfide — which is predominately produced by marine microbes on Earth and regarded as a biosignature gas — in the atmosphere of the super-Earth exoplanet K2-18b. In a paper published in the Astrophysical Journal Letters, University of California, Riverside astronomer Shang-Min Tsai and colleagues challenge this finding, but also outline how the NASA/ESA/CSA James Webb Space...

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This artist’s concept shows what WASP-43b could look like. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

Webb Maps Weather on Hot Jupiter WASP-43b

Apr 30, 2024 by News Staff

WASP-43b is cloudy on the nightside and clear on the dayside, with equatorial winds howling around the planet at 8,050 km per hour (5,000 mph). This artist’s...

Sphaerotholus buchholtzae (smaller species) fighting below larger pachycephalosaurs, the Hell Creek Formation, Montana, the United States. Image credit: ABelov2014 / CC BY-SA 3.0 Deed.

Paleontologists Discover Two New Species of Pachycephalosaurine Dinosaurs

Apr 29, 2024 by Enrico de Lazaro

Paleontologists have unearthed the fossilized remains of two new small-bodied pachycephalosaurines: one in the Dinosaur Park Formation of Alberta and the...

This image of the Martian Inca City was captured by the High Resolution Stereo Camera onboard ESA’s Mars Express orbiter on February 27, 2024. Image credit: ESA / DLR / FU Berlin.

Mars Express Spots ‘Spiders’ at Outskirts of Martian ‘Inca City’

Apr 24, 2024 by News Staff

ESA’s Mars Express spacecraft have spotted the telltale traces of ‘spiders’ scattered across the southern polar region of Mars. This image of the...

Life reconstruction of Dacentrurus armatus, a sister species of Thyreosaurus atlasicus. Image credit: Sci.News.

New Stegosaur Species Had Remarkable Dermal Armor

Apr 23, 2024 by Enrico de Lazaro

A new stegosaurian genus and species from the Middle Jurassic epoch has been identified from the postcranial remains found in the Middle Atlas Mountains...

Preparation of goldene. Image credit: Kashiwaya et al., doi: 10.1038/s44160-024-00518-4.

Scientists Create Single-Atom-Thick Gold: Goldene

Apr 23, 2024 by News Staff

Goldene in the form of gold monolayer sheets has been prepared by etching away titanium carbide (Ti3C2) slabs from titanium gold carbide (Ti3AuC2). Preparation...

An artist’s impression of Vasuki indicus.

Terrifyingly Large Snakes Once Lived in India

Apr 22, 2024 by Enrico de Lazaro

A new genus and species of giant madtsoiid snake that lived in what is now India around 47 million years ago (early Middle Eocene epoch) has been identified...

Ichthyotitan severnensis. Image credit: Gabriel Ugueto.

Paleontologists Identify New Species of Giant Triassic Ichthyosaur

Apr 18, 2024 by Enrico de Lazaro

Ichthyotitan severnensis lived in the Triassic seas around 202 million years ago and might have measured more than 25 m (82 feet). Ichthyotitan severnensis....

Coffea arabica. Image credit: Sci.News.

Arabica Coffee Originated More Than 600,000 Years Ago in Ethiopia: Study

Apr 16, 2024 by News Staff

An international team of scientists has generated the highest quality reference genome to date of the world’s most popular coffee species, Arabica coffee...

The location of the first three black holes discovered by ESA’s Gaia mission in the Milky Way. Image credit: ESA / Gaia / DPAC.

Surprisingly Massive Stellar-Mass Black Hole Detected in Nearby Binary System

Apr 16, 2024 by Natali Anderson

Using data from ESA’s Gaia mission, astronomers have discovered a nearby binary system composed of a giant star orbiting a dormant black hole of of stellar...

The 8,600-year-old bread found at Çatalhöyük in Türkiye. Image credit: Necmettin Erbakan University.

8,600-Year-Old Bread Found in Türkiye

Apr 15, 2024 by Sergio Prostak

Archaeologists from Necmettin Erbakan University say they have discovered the world’s oldest known bread, dating back to 6600 BCE, at Çatalhöyük,...

Life reconstruction of Titanomachya gimenezi. Image credit: Gabriel Díaz Yantén.

New Titanosaur Species Identified in Argentina

Apr 12, 2024 by Enrico de Lazaro

A remarkable new genus and species of small-sized titanosaurian sauropod has been unearthed in Patagonia, Argentina. Life reconstruction of Titanomachya...

A group of Neanderthals in a cave. Image credit: Tyler B. Tretsven.

Study: Just Like Homo sapiens, Neanderthals Organized Their Living Space in Structured Way

Apr 11, 2024 by News Staff

Because it is often assumed that fundamental behavioral differences distinguish Neanderthals and Homo sapiens, the ability to structure space within the...

Jama et al. call for the inclusion of dietary fiber in clinical guidelines for hypertension.

Dietary Fiber Consumption Reduces Blood Pressure, Prevents Cardiovascular Disease, Review Says

Apr 9, 2024 by News Staff

According to several international, regional, and national guidelines on high blood pressure, or hypertension, lifestyle interventions are the first-line...

An artist’s impression of the radio magnetar XTE J1810-197. Image credit: Carl Knox, OzGrav / Swinburne University of Technology.

Astronomers Detect Unusual Radio Pulses from Nearby Magnetar

Apr 8, 2024 by News Staff

Astronomers using CSIRO’s Parkes radio telescope (Murriyang) have detected unusual radio signals from XTE J1810-197, a radio magnetar (ultra-magnetic...

An artist’s impression of the rainbow-like ‘glory effect’ in the atmosphere of WASP-76b. Image credit: ESA.

Astronomers Detect Rainbow-Like ‘Glory’ in Atmosphere of WASP-76b

Apr 5, 2024 by Natali Anderson

Using data from ESA’s Characterising ExOplanet Satellite (CHEOPS) and several other ESA and NASA missions, astronomers have detected signs of the rainbow-like...

Life reconstruction of Marambionectes molinai. Image credit: O’Gorman et al., doi: 10.1080/14772019.2024.2312302.

Paleontologists Discover New Species of Elasmosaur

Apr 4, 2024 by Enrico de Lazaro

A new genus and species of elasmosaurid — a type of plesiosaur with an extremely long, slender neck — has been identified from the fossilized...

The updated bird family tree delineating 93 million years of evolutionary relationships between 363 bird species. Image credit: Jon Fjeldså / Josefin Stiller.

Scientists Create Largest and Most Detailed Bird Family Tree to Date

Apr 1, 2024 by Natali Anderson

The updated family tree, detailed in two complementary papers published today in the journal Nature and the Proceedings of the National Academy of Sciences,...

Hidden in this deep sky image (left) is Uma3/U1, a miniscule group of stars (right) bound together by their own gravity in orbit around the Milky Way Galaxy. Image credit: CFHT / S. Gwyn / S. Smith.

Astronomers Discover Faintest Known Milky Way Satellite

Apr 1, 2024 by Enrico de Lazaro

Ursa Major III/UNIONS 1 (UMa3/U1 for short) is the least luminous and lowest-mass Milky Way satellite ever discovered, and possibly one of the most dark...

This image from the Event Horizon Telescope shows the polarized view of Sagittarius A*; the lines overlaid on this image mark the orientation of polarization, which is related to the magnetic field around the shadow of the black hole. Image credit: EHT Collaboration.

Event Horizon Telescope Observes Twisted Magnetic Field around Milky Way’s Central Black Hole

Mar 27, 2024 by News Staff

According to astronomers’ best models of black hole evolution, the magnetic fields in the accretion disk need to be strong enough to push the accreting...

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