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Stellar Merger Produced Blue Ring Nebula Several Thousand Years Ago

The Blue Ring Nebula is located 6,197 light-years away in the constellation of Hercules. The nebula is 13 light years wide and is composed of hydrogen gas (blue) expanding from a central star, which is the remnant core of a stellar merger; red filaments are shockwave filaments from the merging event. Image credit: NASA / JPL-Caltech / M. Seibert, Carnegie Institution for Science / K. Hoadley, Caltech / GALEX Team.
Nov 19, 2020 by News Staff

In 2004, astronomers using NASA’s Galaxy Evolution Explorer discovered an unusual, ring-shaped ‘blue’ nebula and the star at its center, TYC 2597-735-1. New observations of the object suggest that TYC 2597-735-1 merged with its lower-mass stellar companion less than 5,000 years ago and created a bipolar outflow of material. The Blue Ring Nebula is located 6,197 light-years away in the constellation of Hercules. The nebula is 13 light years wide...

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The extinct Kiritimati sandpiper (Prosobonia cancellata), a close cousin of the newly-discovered Henderson sandpiper (Prosobonia sauli). Illustration by George Edward Lodge, 1907.

Researchers Discover Now Extinct Species of Polynesian Sandpiper

Nov 18, 2020 by News Staff

A new species of sandpiper has been identified from multiple Holocene fossil bones collected several decades ago on Henderson Island, an uninhabited island...

On May 24, 2020, four European radio telescopes detected two bright radio bursts from the SGR 1935+2154 magnetar. Image credit: Danielle Futselaar / Artsource.nl.

Fast Radio Burst from Galactic Magnetar SGR 1935+2154 is Repeating

Nov 18, 2020 by News Staff

Astronomers have detected two more millisecond-duration radio bursts from SGR 1935+2154, a magnetar located over 14,000 light-years away in the constellation...

CMS candidate event for a top quark and antitop quark producing an electron, a muon and jets originating from bottom (b) quarks. Image credit: CERN.

CERN Physicists Find First Evidence for Production of Top Quarks in Nucleus-Nucleus Collisions

Nov 16, 2020 by News Staff

New results from the CMS Collaboration at CERN’s Large Hadron Collider demonstrate for the first time that top quarks are produced in nucleus-nucleus...

An artist’s impression of the planetary system LHS 1140. Image credit: Sci-News.com.

Three Planets Orbit Nearby Red Dwarf LHS 1140

Nov 16, 2020 by Natali Anderson

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and the Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations...

The ruins of the Barbegal mill complex. Image credit: Robert Fabre.

Researchers Unravel Enigma of Barbegal Watermills, World’s First Industrial Complex

Nov 16, 2020 by News Staff

The Barbegal watermill complex, a unique cluster of 16 Roman waterwheels in southern France, was the first known attempt in Europe to set up an industrial-scale...

This artist’s concept depicts the dry environment seen at Mars today versus the early Martian environment. Image credit: Simon Fraser University.

Global and Regional Dust Storms Cause Mars to Lose Water

Nov 13, 2020 by News Staff

Mars was once a wet planet, but it has lost most of its water through reactions that produce hydrogen. In standard models, molecular hydrogen produced...

The Zoonomia Project brings the fraction of eutherian mammal families that are represented by at least one assembly to 83%. This image shows the brown-throated sloth (Bradypus variegatus) in the Cahuita National Park, Costa Rica. Image credit: Christian Mehlführer / CC BY 2.5.

Scientists Sequence Genomes of 131 Placental Mammal Species

Nov 13, 2020 by News Staff

In a study that has implications to advance medicine and biodiversity conservation, a large international consortium of researchers involved in the Zoonomia...

This image shows the glow from the GRB 200522A kilonova caused by the merger of two neutron stars. Image credit: NASA / ESA / W. Fong, Northwestern University / T. Laskar, University of Bath.

Hubble Detects Unexplained Near-Infrared Emission from Neutron-Star Merger

Nov 13, 2020 by News Staff

Several billion years ago, a short gamma-ray burst unleashed more energy in a half-second than our Sun will produce over its entire 10-billion-year lifetime....

Feng et al. report a substantial step towards the dense representation of avian phylogenetic and molecular diversity, by analyzing 363 genomes from 92.4% of bird families. Image credit: Jon Fjeldsa / Josefin Stiller / University of Copenhagen.

Researchers Sequence Genomes of 363 Bird Species

Nov 12, 2020 by News Staff

Scientists from the Bird 10,000 Genomes Project have successfully sequenced and analyzed the genomes of a total of 363 bird species from 92.4% (218 out...

The Popa langur (Trachypithecus popa). Image credit: Thaung Win.

New Species of Primate Discovered in Myanmar

Nov 12, 2020 by News Staff

An international team of biologists and taxonomists has discovered a new species in the langur genus Trachypithecus living in the forests of Myanmar. The...

3-Million-Year-Old Fossil from New Zealand Rewrites Evolutionary History of True Seals

Nov 12, 2020 by Enrico de Lazaro

Living true seals are the most widely dispersed semi-aquatic marine mammals, and comprise geographically separate northern and southern groups. Both are...

An artist’s impression of the azhdarchids pterosaur Alanqa saharica. Image credit: Davide Bonadonna.

New Pterosaur Species Found Hiding in Plain Sight in Museum

Nov 11, 2020 by News Staff

A new re-examination of fossil material housed in the Sedgwick Museum of Cambridge and the Booth Museum at Brighton has revealed the fossilized jaw fragments...

This artist’s conception of Europa shows a hypothesized cryovolcanic eruption, in which briny water from within the icy shell blasts into space. Image credit: Justice Blaine Wainwright.

Europa’s Plumes May Originate from Near-Surface Brine Reservoirs, Not Global Ocean

Nov 11, 2020 by News Staff

Europa, the sixth of Jupiter’s moons and the fourth largest, has a subsurface ocean covered by an icy shell. Despite evidence for plumes on the icy moon,...

Paranthropus boisei. Image credit: © Roman Yevseyev.

2-Million-Year-Old Skull of Paranthropus robustus Suggests Climate Change Drove Rapid Changes

Nov 10, 2020 by News Staff

Paranthropus robustus is a small-brained extinct hominin that lived between 2 million and 1.2 million years ago in what is now South Africa. Discovered...

This illustration of Jupiter’s moon Europa shows how its icy surface may glow on its nightside. Image credit: NASA / JPL-Caltech.

Europa’s Icy Surface Glows in the Dark, New Study Suggests

Nov 10, 2020 by News Staff

Jupiter’s icy moon Europa is bombarded by a constant and intense blast of radiation from the gas giant. Different salty compounds on the moon’s surface...

Petauroides volans, the southern species of the greater glider. Image credit: Steven Kuiter.

Australia’s Greater Glider is Actually Three Different Species

Nov 9, 2020 by Natali Anderson

The greater glider (Petauroides volans), a large, nocturnal gliding marsupial endemic to Australia, isn’t one species, but rather three distinct ones. Petauroides...

An artist’s impression of the SGR 1935+2154 magnetar in outburst, showing complex magnetic field structure and beamed emission. Image credit: McGill University Graphic Design Team.

Fast Radio Burst Detected from Magnetar in Milky Way

Nov 9, 2020 by News Staff

Astronomers using the CHIME (Canadian Hydrogen Intensity Mapping Experiment) and FAST (Five-hundred-meter Aperture Spherical radio Telescope) telescopes...

Early hunter-gatherer females were big-game hunters. Image credit: Matthew Verdolivo / UC Davis / IET Academic Technology Services.

Early Hunter-Gatherer Females Hunted Big-Game Animals

Nov 9, 2020 by News Staff

Archaeological excavations at the site of Wilamaya Patjxa in the high Peruvian Andes have revealed a 9,000-year-old female burial associated with a big-game...

Cambrian Shrimp-Like Arthropod Had Five Eyes

Nov 6, 2020 by Enrico de Lazaro

Paleontologists in China have uncovered exceptionally preserved fossils of a previously unknown genus and species of extinct arthropod, Kylinxia zhangi,...

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