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‘Microchromosomes’ are Fundamental Building Blocks of Amniote Chromosomes, Study Finds

Central bearded dragon cells under a microscope, showing the tiny microchromosomes huddled together amongst the larger chromosomes. Image credit: Shayer Alam / La Trobe University.
Nov 2, 2021 by News Staff

Tiny ‘microchromosomes’ (<0.5 µm) are the building blocks of all animal genomes, but they underwent ‘dizzying rearrangement’ in mammals, including humans, according to a paper published in the Proceedings of the National Academy of Sciences. Central bearded dragon cells under a microscope, showing the tiny microchromosomes huddled together amongst the larger chromosomes. Image credit: Shayer Alam / La Trobe University. La Trobe University’s...

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Psychotria insularum. Image credit: Victoria University of Wellington.

Samoan Medicinal Plant May Be as Effective as Ibuprofen, Study Says

Nov 2, 2021 by News Staff

The poorly understood ‘matalafi’ — the homogenate of Psychotria insularum leaves (fresh leaf juice) — is widely used in Samoan traditional...

Ordovician sea life. Image credit: Fritz Geller-Grimm / National Museum of Natural History / CC BY-SA 2.5.

New Research Explores Cause of End-Ordovician Mass Extinction

Nov 2, 2021 by News Staff

The end-Ordovician mass extinction, the first of the ‘Big Five’ mass extinctions occurred 445 million years ago and was characterized by the disappearance...

New Type of Neuron Discovered in Mammalian Retina

Nov 2, 2021 by News Staff

Cell classes are the building blocks for the central nervous system. It is widely believed that major classes of neurons have been identified in the retina,...

An artist’s conception of the HR 858 planetary system. Image credit: Sci-News.com.

Two Planets in HD 3167 System are on Perpendicular Orbits, Astronomers Say

Nov 2, 2021 by Natali Anderson

The super-Earth HD 3167b is close to orbiting within the stellar equatorial plane, while the mini-Neptune HD 3167c orbits above the poles of the host star,...

Life restoration of Nochelaspis maeandrine. Image credit: Dinghua Yang.

Early Devonian Fish Had Triangular Head Shield

Nov 1, 2021 by Enrico de Lazaro

Paleoichthyologists in China have re-described Nochelaspis maeandrine, a species of large-sized eugaleaspiform fish that lived 415 million years ago (Devonian...

An artist’s impression of the sub-Neptune TOI-2285b and its parent star. Image credit: Sci-News.com.

Temperate Sub-Neptune Found Orbiting Nearby Red Dwarf

Nov 1, 2021 by Natali Anderson

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and several ground-based telescopes, astronomers have discovered and confirmed a...

A detail from the 1988 Mark Hallett mural, ‘Trapped in Time,’ depicting saber-toothed cats digging into prey. Image credit: La Brea Tar Pits.

Saber-Toothed Cats were Social Animals, New Study Suggests

Nov 1, 2021 by News Staff

A team of researchers has reconstructed and analyzed the external and internal bone morphology of a deformed hip bone from Smilodon fatalis, one of the...

This visible-light image of Jupiter was created from data captured on January 11, 2017 using Hubble’s Wide Field Camera 3. Near the top, a long brown feature called a ‘brown barge’ extends 72,000 km (nearly 45,000 miles) in the east-west direction. The Great Red Spot stands out prominently in the lower left, while the smaller feature nicknamed Red Spot Jr. (known to Jovian scientists as Oval BA) appears to its lower right. Image credit: NASA / ESA / NOIRLab / NSF / AURA / Wong et al. / de Pater et al. / M. Zamani.

Juno Provides New Information about Jupiter’s Enigmatic Atmospheric Features

Nov 1, 2021 by News Staff

Juno launched on August 5, 2011 and successfully entered Jupiter’s orbit on July 4, 2016. During each of the spacecraft’s 37 passes of Jupiter to date,...

This Hubble image shows NGC 6984, a barred spiral galaxy some 164 million light-years away in the constellation of Indus. The color image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the ultraviolet, near-infrared, and optical parts of the spectrum. Six 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 / D. Milisavljevic.

Hubble Sees Elegant Spiral Galaxy: NGC 6984

Nov 1, 2021 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an amazing new photo of the barred spiral galaxy NGC 6984. This Hubble image shows...

An artist’s impression of the hot-Jupiter exoplanet HAT-P-68b and its parent star HAT-P-68 (also known as GSC 1925-01046 and 2MASS 07535598+2356176), a K5-type dwarf star with a mass of 0.68 solar masses and a radius of 0.67 solar radii. Image credit: Sci-News.com.

Astronomers Measure Amount of Carbon and Oxygen in Hot Jupiter’s Atmosphere

Oct 29, 2021 by News Staff

Using the Immersion GRating INfrared Spectrometer (IGRINS) at the Gemini South Observatory on Cerro Pachon, Chile, astronomers have measured carbon-to-hydrogen...

This Hubble image shows the carbon star CW Leonis. The image incorporates observations from 2011 and 2016 by Hubble’s Wide Field Camera 3 (WFC3). The star is brightest in the red filters, R and I, and therefore the simmering orange color pervading the center of the image well represents the real color of the star. Image credit: NASA / ESA / Hubble / T. Ueta / H. Kim.

Hubble Observes Red Giant Star CW Leonis

Oct 29, 2021 by News Staff

CW Leonis, which is located 400 light-years away in the constellation of Leo, is a carbon star — a luminous type of red giant star with a carbon-rich...

Patagonian birds disperse viable spores of mycorrhizal fungi. Image credit: Caiafa et al., doi: 10.1016/j.cub.2021.10.024.

Patagonian Birds Hunt for Truffles, Too

Oct 29, 2021 by News Staff

New research demonstrates that two common, widespread, and endemic Patagonian bird species — the chucao tapaculo (Scelorchilus rubecula) and the...

Homo bodoensis had a pan-African distribution with the peripheral range extending into the eastern Mediterranean (Southeast Europe and the Levant) from which it could have contributed to the repopulation of European (and possibly Central and East Asian) demographic sinks after the glaciations. Image credit: Ettore Mazza.

Meet Homo bodoensis, New Species of Human Ancestor

Oct 29, 2021 by News Staff

Homo bodoensis lived in Africa during the early Middle Pleistocene, around 500,000 years ago, and was the direct ancestor of the Homo sapiens lineage;...

An artist’s impression of the binary system MAXI J1820+070. Image credit: John Paice.

Warped Accretion Disk Spotted around Stellar-Mass Black Hole

Oct 28, 2021 by News Staff

Variations in the brightness of light seen from around a stellar-mass black hole in the binary system MAXI J1820+070 were caused by a huge warp in its...

An artist’s impression of hatchling pterosaurs. Image credit: Megan Jacobs.

Babies of Cretaceous Giant Pterosaurs Outcompeted Adults of Smaller Pterosaur Species: Study

Oct 28, 2021 by News Staff

Pterosaurs reached only modest sizes in the Triassic and Jurassic periods. By contrast, the Cretaceous period saw a trend toward large to giant size (2...

The Shelley’s eagle owl (Bubo shelleyi). Image credit: Robert Williams.

Extremely Rare Shelley’s Eagle Owl Photographed in Wild for First Time

Oct 28, 2021 by News Staff

The Shelley’s eagle owl (Bubo shelleyi) was photographed by Imperial College London researcher Joseph Tobias and freelance ecologist Robert Williams...

Several instruments joined forces to produce this image of the G237 protocluster, identifying its galaxies in different colors representing different wavelengths of observations. The image on the right zooms in on the central region of G237. Image credit: ESA / Herschel / XMM-Newton / NASA / Spitzer / NAOJ / Subaru / Large Binocular Telescope / ESO / VISTA / Polletta et al. / Koyama et al.

New Galaxy Protocluster Discovered in Early Universe

Oct 28, 2021 by News Staff

The newly-discovered protocluster, named PHz G237.01+42.50 (G237 for short), contains over 60 members, including blue star-forming galaxies and active...

Giant panda Xiao Liwu at the San Diego Zoo.

Giant Panda’s Unique Black-And-White Coat Provides Effective Camouflage, New Research Confirms

Oct 28, 2021 by News Staff

While most mammals are drab browns and grays, there are a small number of well-known and intriguing exceptions. Perhaps the most famous of all is the giant...

This image from NASA’s Spitzer Space Telescope shows a Godzilla-like nebula in the constellation of Sagittarius. Four colors (blue, cyan, green, and red) represent different wavelengths of infrared light: blue and cyan represent wavelengths primarily emitted by stars; dust and organic molecules called hydrocarbons appear green; and warm dust that’s been heated by stars or supernovae appears red. Image credit: NASA/ Spitzer / JPL-Caltech.

Spitzer Spots ‘Godzilla-Like Nebula’

Oct 27, 2021 by News Staff

NASA has released an incredibly beautiful image of a nebula, a cloud of gas and dust captured by the agency’s Spitzer Space Telescope. This image from...

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