Breaking Science News:


Astronomers find misaligned and warped protoplanetary disc around triple-star system.

Views expressed in this science and technology update are those of the reporters and correspondents.

Content provided by “”

Accessed on 04 September 2020, 2203 UTC.


Please click link or scroll down to read your selections.


Astronomers Find Misaligned and Warped Protoplanetary Disk around Triple-Star System

This composite image shows both ALMA and SPHERE/VLT observations of the disk around GW Orionis. The ALMA image (blue) shows the disk’s ringed structure, with the innermost ring (part of which is visible as an oblong dot at the very center of the image) separated from the rest of the disk. The SPHERE observations (orange-red) allowed the astronomers to see for the first time the shadow of this innermost ring on the rest of the disk, which made it possible for them to reconstruct its warped shape. Image credit: ALMA / ESO / NAOJ / NRAO / ESO / University of Exeter / Kraus et al.Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and the SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) instrument on ESO’s Very Large Telescope (VLT) have discovered a rare circumtriple protoplanetary disk with misaligned dust rings around the young hierarchical triple system GW Orionis. They give two possible scenarios for the misalignment: either the…


Mineral Hematite Detected at High Latitudes on Moon

Map of hematite (redder color) on the Moon. Image credit: Li et al, doi: 10.1126/sciadv.aba1940.A ferric mineral called hematite (Fe2O3) is present at high latitudes on the Moon, mostly associated with east- and equator-facing sides of topographic highs, and is more prevalent on the lunar nearside than the farside, according to an analysis of data collected by the Moon Mineralogy Mapper (M3) onboard India’s Chandrayaan-1 mission. Map of hematite (redder color) on the Moon. Image credit: Li…


Nebra Sky Disk Could Be Younger than First Thought

The Nebra sky disk. Image credit: Dbachmann / CC BY-SA 3.0.The Nebra sky disk, one of the oldest concrete depictions of cosmic phenomena, was created in the first millennium BCE, roughly 1,000 years later than previously assumed, according to new research by German scientists. The Nebra sky disk. Image credit: Dbachmann / CC BY-SA 3.0. The Nebra sky disk is a bronze disk of around 32 cm (12.6 inches) diameter and a mass of 2.2 kg, having a blue-green patina…


Scientists Reconstruct Body Dimensions of Megalodon

Paleoartistic reconstruction of a 16-m megalodon scaled against a 1.65-m human. Image credit: Oliver E. Demuth.A 16-m- (52.5-foot) long megalodon had a head 4.65 m (15.3 feet) long, a dorsal fin 1.62 m (5.3 feet) tall and a tail 3.85 m (9.4 feet) high, according to a study led by researchers from the University of Bristol and Swansea University. Paleoartistic reconstruction of a 16-m megalodon scaled against a 1.65-m human. Image credit: Oliver E. Demuth. The megalodon (Otodus, or Carcharocles, megalodon),…


Cat Owners Fall into Five Categories, Study Shows

Crowley et al conducted a Q-methodological study to investigate the views of domestic cat owners in the UK on the roaming and hunting behaviors of their pets; they identified five distinctive cat-owner perspectives: (1) Concerned Protectors focus on cat safety, (2) Freedom Defenders prioritize cat independence and oppose restrictions on behavior, (3) Tolerant Guardians believe outdoor access is important for cats but dislike their hunting, (4) Conscientious Caretakers feel some responsibility for managing their cats’ hunting, and (5) Laissez-faire Landlords were largely unaware of the issues surrounding roaming and hunting behavior. These photos show the Q-sorting procedure, with assistance from several cats: (a) participants read each of the 62 statements and place each statement card into one of three piles (‘agree,’ ‘disagree,’ and ‘neutral’); (b) participants then arrange the statement cards in relation to a constrained distribution from ‘most agree,’ through ‘neutral,’ to ‘most disagree;’ (c) a completed Q-sort, with cards turned over to show unique statement numbers on the reverse side; the alphanumeric code C03 in the lower-left corner (written over the photograph) is a participant ID code. Image credit: Crowley et al, doi: 10.1002/fee.2254.A team of scientists from the University of Exeter has surveyed 56 cat owners, some from rural parts of the UK (mostly in south-west England) and some from urban areas (Bristol and Manchester), and found they ranged from ‘conscientious caretakers’ concerned about cats’ impact on wildlife and who feel some responsibility to ‘freedom defenders’ who opposed restrictions on cat behavior altogether;…


Astronomers Witness Birth of Intermediate-Mass Black Hole

An artist’s impression of binary black holes about to collide. Image credit: Mark Myers, ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav), Australian National University.Astronomers using the twin LIGO detectors located in Livingston, Louisiana, and Hanford, Washington, and the Virgo detector located near Pisa, Italy, have detected gravitational waves from the most massive binary black hole merger ever discovered. The two spinning black holes merged when the Universe was only about 7 billion years old, which is roughly half its present age, and formed a larger black…


American Mastodons Migrated Across Vast Distances Due to Warming Climate, DNA Study Says

Artistic rendering of American mastodons (Mammut americanum). Image credit: Julius Csotonyi.A team of researchers from McMaster University and elsewhere has carried out a phylogeographic study of the extinct American mastodon (Mammut americanum) based on 35 newly-sequenced mitochondrial genomes. Their findings suggest that American mastodons repeatedly expanded into northern latitudes in response to interglacial warming. Artistic rendering of American mastodons (Mammut americanum). Image…


Earth’s Water Came from Enstatite Chondrite-Like Asteroids, Study Suggests

A piece of the enstatite chondrite meteorite Sahara 97096. Image credit: Christine Fieni / Laurette Piani / French National Museum of Natural History.A type of meteorite called an enstatite chondrite has similar isotopic composition to terrestrial rocks and thus may be representative of the material that formed Earth. A new study published in the journal Science shows that these meteorites contain sufficient hydrogen to have delivered to Earth at least three times the mass of water in its oceans. A piece of the enstatite chondrite meteorite Sahara…


Researchers Create Battery-Free, Energy-Harvesting Gaming Device

The ENGAGE device. Image credit: Northwestern University.A team of scientists from Northwestern University and the Delft University of Technology (TU Delft) has developed the first-ever battery-free, personal mobile gaming device powered by energy harvested from the gamer actions and sunlight. The ENGAGE device. Image credit: Northwestern University. “It’s the first battery-free interactive device that harvests energy from user actions,” said Northwestern…

For the latest trends in science, technology, medicine, health, the envrionment, and artificial intelligence, please check the blog sidebars and links.

Until next time,

Russ Roberts

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: