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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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Top: neurons and glial cells. Bottom: the Millennium Simulation of the Universe. Image credit: Center for Brain Injury and Repair, University of Pennsylvania School of Medicine / Springel et al.

Human Brain’s Neuronal Network Has Similarities to Cosmic Web, Study Claims

Nov 18, 2020 by News Staff

In a paper published this week in the journal Frontiers of Physics, a duo of researchers from Italy investigated the similarities between the network of...

Torvosaurus gurneyi. Image credit: © Sergey Krasovskiy.

Non-Avian Dinosaurs Were Not in Decline Prior to Their Extinction

Nov 18, 2020 by News Staff

A new analysis of non-avian dinosaur diversity shows they were not in decline and were still capable of generating new species at the time of their extinction...

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...

Chili peppers contain a phenolic compound called capsaicin. Image credit: Hans Braxmeier.

Regular Chili-Pepper Consumption Could Help You Live Longer, New Review Says

Nov 18, 2020 by News Staff

Regular consumption of chili pepper is associated with a significant reduction in all-cause, cardiovascular, and cancer-related mortalities, according...

The 2,000-year-old gem seal found in Jerusalem, Israel. Image credit: Eliyahu Yanai, City of David.

Israeli Archaeologists Unearth Ancient Seal Depicting Apollo

Nov 17, 2020 by News Staff

Archaeologists digging in the Tzurim Valley National Park in Jerusalem, Israel, have found a small gem seal, dating from the first century CE, with a portrait...

Experimental configuration and principles of optical vortex beam for discharge control and guidance: at first, microparticles are prepared and placed in an enclosed container with vertically aligned electrodes (left); an applied electric field through the container lifts the particles by electrostatic forces; some of the lifted particles cross the hollow core doughnut-shaped CW laser beam and get trapped in it; the vortex laser beam is guides particles in the mid-air: particles from a container are transported into a parallel plate chamber through a hole in one of the electrodes; in addition, particles are heated by the same laser beam thus creating a thermal channel between the electrodes that results in a subthreshold electrical breakdown; the inset shows a photograph of the experimental setup with particles trapped in the beam. Image credit: Shvedov et al., doi: 10.1038/s41467-020-19183-0.

‘Tractor’ Laser Beam Has Potential to Control Path, Direction of Lightning

Nov 17, 2020 by News Staff

An international team of researchers has proposed and demonstrated an efficient approach for triggering, trapping and guiding electrical discharges in...

This photo shows a Centaur upper-stage rocket before being mated to an Atlas booster in 1966. Image credit: NASA.

Earth Has New, Temporary Mini-Moon: Rocket Booster from 1960s-Era

Nov 17, 2020 by News Staff

On November 8, 2020, our planet captured a tiny object — the Centaur upper stage rocket booster that helped lift NASA’s Surveyor 2 spacecraft toward...

A possible subglacial valley and river deep below the surface of Greenland. Image credit: Chambers et al., doi: 10.5194/tc-14-3747-2020.

Long Subglacial River May Flow below Greenland Ice Sheet

Nov 17, 2020 by News Staff

A possible subterranean river flows from the deep interior of Greenland to Petermann Fjord, suggests a paper published in The Cryosphere. A possible subglacial...

Amphimedon queenslandica. Image credit: University of Queensland.

Sea Sponge from Great Barrier Reef Unravels 700-Million-Year-Old Mystery of Evolution

Nov 17, 2020 by News Staff

Humans, mice, zebrafish, and most likely other animals, share enhancers — DNA regions that help to regulate gene expression and evolve rapidly —...

An artist’s impression of glycine together with dark interstellar clouds in the lab. Image credit: Harold Linnartz.

Amino Acids Can Form Long Before Stars and Planets: Study

Nov 16, 2020 by News Staff

Glycine and other amino acids form in dense interstellar clouds well before they transform into new stars and planets, suggests a new study led by researchers...

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 Hubble image shows the spiral galaxy UGC 12588. The color image was made from separate exposures taken in the visible region of the spectrum with Hubble’s Advanced Camera for Surveys (ACS). Two 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. Tully / Gagandeep Anand.

Hubble Space Telescope Looks at Faint Spiral: UGC 12588

Nov 16, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an amazing new photo of a spiral galaxy called UGC 12588. This Hubble image shows the...

This composite image of the planetary nebula IC 4593 contains X-rays (Chandra) from gas that has been heated to over a million degrees. These high temperatures were likely generated by material that blew away from the shrunken core of the star and crashed into gas that had previously been ejected by the star. Visible light data from Hubble in the image show combinations of nitrogen, oxygen, and hydrogen. Image credit: NASA / CXC / UNAM / J. Toala et al. / STScI.

Chandra Finds Hot Bubble in Planetary Nebula IC 4593

Nov 13, 2020 by Enrico de Lazaro

Astronomers using NASA’s Chandra X-ray Observatory have spotted a bubble of ultrahot gas at the center of a planetary nebula called IC 4593. This composite...

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....

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