An Earth-sized rogue planet discovered in the Milky Way
Our
galaxy may be teeming with rogue planets, gravitationally unbound to
any star. An international team of scientists, led by Polish
astronomers, has announced the discovery of the smallest Earth-sized
free-floating planet found to date.
Nature, Published online: 29 October 2020;
doi:10.1038/d41586-020-03050-5 Illusionist who exposed fraud to showcase
the perils of credulity.
Octopuses
use their arms to ‘lick’ prey – which researchers say adds to evidence
that the cephalopods’ eight appendages are analogous to tongues with
‘hands’ and ‘brains’
An
environmental health scientist has used an unprecedented objective
approach to identify which molecular mechanisms in mammals are the most
sensitive to chemical exposures.
Our
biological processes rely on a system of communications -- cellular
signals -- that set off chain reactions in and between target cells to
produce a response. The first step in these often complex communications
is the moment a molecule binds to a receptor on or in a cell, prompting
changes that can trigger further signals that propagate across systems.
From food tasting and blood oxygenation
An
academic has helped draw up a landmark agreement amongst international
experts, setting out the world's first standard guidance on how people
with diabetes can use modern glucose monitoring devices to help them
exercise safely. The guidance will be a crucial resource for healthcare
professionals around the world, so they can help people with type 1
diabetes.
Pyrite,
or fool's gold, is a common mineral that reacts quickly with oxygen
when exposed to water or air, such as during mining operations, and can
lead to acid mine drainage. Little is known, however, about the
oxidation of pyrite in unmined rock deep underground.
Researchers
have created fundamental electronic building blocks out of tiny
structures known as quantum dots and used them to assemble functional
logic circuits.
New
research showed how immune 'training' transforms innate immune cells to
target tumors. The findings could inform new approaches to cancer
immunotherapy or even strategies for preventing tumor growth.
Scientific
American senior editor Mark Fischetti talks about how this election
will affect environmental science and policy. -- Read more on
ScientificAmerican.com
Scientific
American senior editor Mark Fischetti talks about how this election
will affect environmental science and policy. -- Read more on
ScientificAmerican.com
Contrary
to expectation, treatment with statins has a different effect on blood
cells than on muscle cells, a new study reveals. Today, statins are
mainly used in the treatment of elevated cholesterol, but the new
results may help design drugs for a number of conditions.
When
satellites take pictures of Earth at night, how much of the light that
they see comes from streetlights? A team of scientists have answered
this question for the first time using the example of the U.S. city of
Tucson, thanks to 'smart city' lighting technology that allows dimming.
The result: only around 20 percent of the light in the Tucson satellite
images comes from streetlights.
It's
still easy to think we're in control when browsing the internet, but a
new study argues much of that is 'an illusion.' Corporations are
'nudging' us online more than we realize, and often in hidden ways.
Researchers analyzed click-stream data on a million people over one
month of internet use to find common browsing sequences, then connected
that with site and platform ownership and partnersh
Your
bag of mulch may not be what you think it is. In a new study,
researchers found that some bags labeled as 'cypress' contain only 50%
cypress, while other bags contained no cypress at all.
Using
sophisticated 3D genomic mapping and integrating with public data
resulting from genome-wide association studies (GWAS), researchers have
found significant genetic correlations between inflammatory bowel
disease (IBD) and stress and depression.
Vestal
Grove in Cook County, Illinois, looks nothing like the scrubby,
buckthorn-choked tangle that first confronted restoration ecologists 37
years ago. Thanks to the efforts of a dedicated team that focused on
rooting up invasive plants and periodically burning, seeding native
plants and culling deer, the forest again resembles its ancient self,
researchers report.
Researchers
define for the first time the precise exact ranges in which positively
and negatively charged fragments can be produced when living cells are
bombarded with fast, heavy ions.
A
small energy harvesting device that can transform subtle mechanical
vibrations into electrical energy could be used to power wireless
sensors and actuators for use in anything from temperature and occupancy
monitoring in smart environments, to biosensing within the human body.
Engineers have developed a predictive model for such a device, which
will allow researchers to better understand and opt
Researchers
have demonstrated that they can attract, capture and destroy PFAS - a
group of federally regulated substances found in everything from
nonstick coatings to shampoo and nicknamed 'the forever chemicals' due
to their persistence in the natural environment.
Research
on fossil canine genomes is expanding and producing some surprises
about the lives of dogs and humans in prehistoric times.
Researchers
developed a novel microcarrier for large-scale cell production and
expansion that offers higher yield and cost-effectiveness compared to
traditional methods, and reduces steps required in the cell retrieval
process. The findings can help treat ailments such as bone and cartilage
defects and graft vs. host disease.
About
half of all tumors have mutations of the gene p53, normally responsible
for warding off cancer. Now scientists have discovered a new role for
p53 in its fight against tumors: preventing retrotransposons, or
'jumping genes,' from hopping around the human genome. In cells with
missing or mutated p53, the team found, retrotransposons move and
multiply more than usual. The finding could lead to
Existing
methods for detecting seafood spoilage are far from satisfactory for
ensuring food safety and security. To solve this problem, researchers
have constructed and tested a solid-state fluorescent sensor loaded on
filter papers that can instantly and accurately measure the rate of
spoilage in Atlantic salmon - and can easily be applied to other
seafood.
Researchers
have found that a more intensive, less frequent drug regimen with
currently available therapeutics could cure the infection that causes
Chagas disease.
Researchers expand their theory on converting graphene into 2D diamond, or diamane.
The
most detailed analysis to date of CRISPR genome editing in human
embryos finds a significant risk of chromosomal abnormalities when using
the technique at earliest stage of human development.
The
OSIRIS-REX spacecraft stowed the rock and dust it collected from Bennu,
setting itself up to return the sample to our planet.
Season
two of "The Mandalorian" lands on Disney Plus Friday (Oct. 30), so
here's one final glimpse of what we can expect from the stoic space
bounty hunter in a galaxy far, far away.
American hospitals are being targeted in a wave of ransomware attacks
as covid-19 infections in the US break records and push the country’s
health infrastructure to the limit. As reports emerge of attacks that
interrupted health care in at least six US hospitals, experts and
government officials say they expect the impact to worsen—and warn that
the attacks could potentially threaten patients’ li
The crew of the Discovery get a hostile welcome as they return to the planet Earth.
The
idea of modifying Earth’s atmosphere to cool the planet, once seen as
too risky to seriously consider, is attracting new money and attention.
The
DNA-cutting tool has been hailed as a way to fix genetic glitches. But a
new study suggests it can remove more than scientists bargained for.
The meteorite was recovered from a frozen lake in Hamburg, Michigan in
January 2018. (Brannon Naito/) Meteorites are little bundles of
scientific evidence, holding secrets to deep space and how life was
seeded on Earth. The problem is, it’s rare that they’re actually
recovered before they are contaminated by liquid water and terrestrial
microbes, rendering them far less useful. So when a meteorit
Researchers
have revealed more details about omnidirectional photoluminescence
(ODPL) spectroscopy - a method for probing semiconducting crystals with
light to detect defects and impurities.
Researchers
have investigated the mechanism behind defensive behavior in mice. They
have identified a specific area of the brain that encodes both spatial
and threat cues to drive location-specific defensive responses.
Algorithms
that assess the risk of citizens becoming unemployed are currently
being tested in a number of Danish municipalities. But according to a
new study, gaining employment is not the only relevant goal for those
out of work -- nor should it be for an algorithm.
In
a study using genetically modified mice, researchers found that the
nucleus accumbens recruited by cocaine use are largely distinct from
nucleus accumbens recruited by sucrose, or table sugar. Because they are
separate, this poses the possibility that drug use can be addressed
without affecting biologically adaptive seeking of reward.
An
international research team has sequenced the full genome of an
ornamental variety of miscanthus, a wild perennial grass emerging as a
prime candidate for sustainable bioenergy crops. The genome project
provides a road map for researchers exploring new avenues to maximize
the plant's productivity and decipher the genetic basis for its
desirable traits.
Black
soldier fly larvae contains more zinc and iron than lean meat and its
calcium content is higher than milk. Less than half a hectare of black
soldier fly larvae can produce more protein than cattle grazing on
around 1200 hectares, or 52 hectares of soybeans. New research has
identified the barriers for introducing fly protein into Western human
diets as a sustainable, healthy alternative to b
Best wireless earbuds for the ultimate audio experience. (Amazon/)
Modern headphones are essential for enhancing productivity and
performing a variety of common tasks, including making and taking
hands-free phone calls, reviewing music and audio on the go, and
canceling out distracting background noise. In the few short decades
since their invention in the early 1900s, headphones have gone from b
Burçin Mutlu-Pakdil currently conducts astronomy and astrophysics
research at the University of Chicago. (Science Friday/) Breakthrough is
a short film anthology and educational outreach program from the
Science Friday Initiative and Howard Hughes Medical Institute (HHMI)
Tangled Bank Studios. This short documentary series follows women
working at the forefront of their scientific field, blending
Researchers
have developed CRISPR-LICHT, a revolutionary technology that allows
genetic screens in human tissues such as brain organoids. By applying
the novel technology to brain organoids, the ER-stress pathway was
identified to play a major role in regulating the size of the human
brain.
Per-/poly-fluroalkyl
substances, or PFAS, are everywhere. They are used in firefighting
foam, car wax, and even fast-food wrappers. They're one of the most
toxic substances ever identified -- harmful at concentrations in the
parts per trillion -- yet very little is known about them.
They
look like microscopic bottle brushes: Polymers with a backbone and
tufts of side arms. This molecular design gives them unusual abilities:
For example, they can bind active agents and release them again when the
temperature changes. With the help of neutrons, a research team has now
succeeded to unveil the changes in the internal structure in course of
the process.
A
new study confirms the success of a natural-gas leak-detection tool
that uses sensors and machine learning to locate leak points at oil and
gas fields, promising new automatic, affordable sampling across vast
natural gas infrastructure.
A
recent study reveals how gene control mechanisms define the identity of
developing neurons in the brainstem. The researchers also showed that a
failure in differentiation of the brainstem neurons leads to behavioral
abnormalities, including hyperactivity and attention deficit.
A
new study provides new estimates of the increased risks of breast
cancer associated with use of different hormone replacement therapy
(HRT) preparations.
A liquid nanofoam liner undergoing testing could prolong the safe use of football helmets, says a researcher.
The
plant pathogenic nematode Heterodera schachtii infects more than 200
different plants, including sugar beets, and causes significant economic
losses. Over the past 50 years, the primary management tool in
California has been crop rotation. When the number of H. schachtii in a
soil exceeds a threshold, growers are contractually required by the
local sugar factory to plant crops that do not supp
Nature, Published online: 29 October 2020;
doi:10.1038/d41586-020-03042-5 Howard Hughes Medical Institute's
six-figure donation is a step towards addressing racial injustice in the
sciences.
Marrying
two layers of graphene is an easy route to the blissful formation of
nanoscale diamond, but sometimes thicker is better.
Many
patients with pancreatic cancer have only about a 10% chance of
survival within five years of their diagnosis because they tend to
become resistant to chemotherapy, past studies have indicated.
As
the country enters the final days of a marathon and polarizing election
season, politicians' faces are everywhere. And that trend is not likely
going anywhere, especially in the realm of social media.
Our
biological processes rely on a system of communications—cellular
signals—that set off chain reactions in and between target cells to
produce a response. The first step in these often complex communications
is the moment a molecule binds to a receptor on or in a cell, prompting
changes that can trigger further signals that propagate across systems.
From food tasting and blood oxygenation during
Between
1992 and 2015, the world's most biologically diverse places lost an
area more than three times the size of Sweden when the land was
converted to other uses, mainly agriculture, or gobbled up by urban
sprawl.
Determining
a child's best daily balance of sleep, activity and relaxation can be a
challenge, but if you're hoping to improve their academic results, then
it's time to cut back on chores and chill time, according to new
research.
Election
forecasting is an innately challenging endeavor, with results that can
be difficult to interpret and may leave many questions unanswered after
close races unfold. Researchers have now borrowed ideas from
epidemiology to develop a new method for forecasting elections. The team
hoped the multidisciplinary nature of their infectious disease model
could expand the community that engages with
Scientists
have discovered and confirmed a method which could serve as an easy but
reliable way to test the quality of graphene and other 2D materials.
A
single-step, plasma-enhanced catalytic process to convert sulfur
dioxide to pure sulfur from tail gas streams may provide a promising,
more environmentally-friendly alternative to current multistage thermal,
catalytic and absorptive processes, according to scientists.
We
know how search engines can favor certain results and how social media
might push us into bubbles, but it's still easy to view the internet as a
place where we're in control.
One
year ago, a report from the Johns Hopkins Center for Health Security
assessed the readiness of 195 countries around the world to confront a
deadly disease outbreak. Topping the list of most-prepared nations was
the United States of America.
Heralded
as one of the greatest success stories of the Endangered Species Act,
the gray wolf will lose federal protections under a Trump administration
decision announced Thursday.
One
of the wild horses that roam the Outer Banks was found dead on a beach
at Cape Lookout National Seashore, and the cause remains a mystery, the
National Park Service said Wednesday.
Science's
steady march to find a vaccine capable of ending the coronavirus
pandemic may come at the expense of another species: sharks.
Plants
have veins that transport nutrients through their body. These veins are
highly organized. The hormone auxin travels directionally from
cell-to-cell and provides cells with positional information,
coordinating them during vein formation and regeneration. Scientists now
discovered how cells translate auxin signals into forming a complex
system of veins. This phenomenon also applies to wound h
Relationship
psychologists have shown that people's trust in artificial intelligence
(AI) is tied to their relationship or attachment style.
Teens
who have good, supportive relationships with their teachers enjoy
better health as adults, according to new research. Perhaps
surprisingly, although friendships are important to adolescents, the
study did not find the same link between good peer relationships and
students' health in adulthood.
Weed-
and insect-resistant crops have boosted overall yields, but do not
improve resilience to dry conditions -- Read more on
ScientificAmerican.com
Weed-
and insect-resistant crops have boosted overall yields, but do not
improve resilience to dry conditions -- Read more on
ScientificAmerican.com
A new technique could help increase the effectiveness of vaccines
against the novel coronavirus, the virus that causes COVID-19,
researchers report. One solution to the problem of creating an effective
COVID-19 vaccine might lie in designing vaccines that partially mimic
the structure of the virus, says Jonathan F. Lovell, associate professor
in the biomedical engineering department at the Univer
If all goes according to plan, the U.S. Space Force will soon have its first service member in orbit.
Some are casting spells to “raise a mighty blue wave,” while other conjurers are employing pro-Trump countermagics.
As Covid-19 infections spike in many parts of the US, malware gangs are wreaking havoc on the health care system.
Kerbonauts
will have a fun chance to show their love of Kerbal Space Program while
celebrating the 20th anniversary of continuous human occupation of the
International Space Station.
With days still to go before the US presidential election, early voting
has already topped half of all votes cast in the 2016 election , and
every indication is that the electorate is energized. It makes sense,
then, that in this heavily contested, highly polarized political
environment (in the midst of a raging pandemic, no less), disinformation
campaigns are likely to come hot and fast. Major p
Mice
fed diets high in sugar developed worse colitis, a type of inflammatory
bowel disease (IBD), and researchers examining their large intestines
found more of the bacteria that can damage the gut's protective mucus
layer.
Flip
a coin. Heads? Take a step to the left. Tails? Take a step to the
right. In the quantum world? Go in both directions at once, like a wave
spreading out. Called the walker analogy, this random process can be
applied in both classical and quantum algorithms used in
state-of-the-art technologies such as artificial intelligence and data
search processes. However, the randomness also makes the wal
Historically,
spring-run and fall-run Chinook salmon have been considered as separate
subspecies, races, ecotypes, or even as separate species of fish. A new
genetic analysis, however, shows that the timing of migration in
Chinook salmon is determined entirely by differences in one short
stretch of DNA in their genomes.
A
global study of ancient dog DNA presents evidence that there were
different types of dogs more than 11,000 years ago in the period
immediately following the Ice Age.
Researchers
analyzed the genome of the oldest human fossil found in Mongolia to
date and show that the 34,000-year-old woman inherited around 25 percent
of her DNA from western Eurasians, demonstrating that people moved
across the Eurasian continent shortly after it had first been settled by
the ancestors of present-day populations. This individual and a
40,000-year-old individual from China also
A
new study finds that people who feel enthusiastic and cheerful -- what
psychologists call 'positive affect' -- are less likely to experience
memory decline as they age. This result adds to a growing body of
research on positive affect's role in healthy aging.
Scientists
have used data from NASA's Cassini mission to delve into the impact
craters on the surface of Titan, revealing more detail than ever before
about how the craters evolve and how weather drives changes on the
surface of Saturn's mammoth moon.
When
satellites take pictures of Earth at night, how much of the light that
they see comes from streetlights? A team of scientists from Germany, the
U.S., and Ireland have answered this question for the first time,
thanks to "smart city" lighting technology that allows cities to dim
their lights. The results were published today in the journal Lighting
Research & Technology.
Thanks
to new research using data from the Kepler space telescope, it's
estimated that there could be as many as 300 million potentially
habitable planets in our galaxy. Some could even be pretty close, with
several likely within 30 light-years of our Sun. The findings will be
published in The Astronomical Journal, and research was a collaboration
of scientists from NASA, the SETI Institute, and o
A
NASA spacecraft more than 200 million miles away has tucked asteroid
samples into a capsule for return to Earth, after losing some of its
precious loot, scientists said Thursday.
Research
on fossil canine genomes is expanding and producing some surprises
about the lives of dogs and humans in prehistoric times.
Many
of the fundamental principles in biology and essentially all pathways
regulating development were identified in so-called genetics screens.
Originally pioneered in the fruit fly Drosophila and the nematode C.
elegans, genetic screens involve inactivation of many genes one by one.
By analyzing the consequences of gene loss, scientists can draw
conclusions about its function. This way, for exam
There
are nearly one million catalogued asteroids, but we don't know much
about many of them. Now Unistellar and its scientific partner, the SETI
Institute, can count on a network of nearly 3,000 amateurs capable of
observing thousands of asteroids and providing an estimate of their size
and shape. With mobile stations located in Asia, North America and
Europe, the Unistellar network, the largest
Zooplankton can grow faster and produce more offspring when exposed to a substance that affects human happiness.
Professor
Arakawa Masahiko (Graduate School of Science, Kobe University, Japan)
and members of the Hayabusa2 mission discovered more than 200 boulders
ranging from 30 cm to 6m in size, which either newly appeared or moved
as a result of the artificial impact crater created by Japanese
spacecraft Hayabusa2's Small Carry-on Impactor (SCI) on April 5th, 2019.
Some boulders were disturbed even in area
Colors
are often essential to convey scientific data, from weather maps to the
surface of Mars. But did you ever consider that a combination of colors
could be "unscientific?" Well, that's the case with color scales that
use rainbow-like and red–green colors, because they effectively distort
data. And if that was not bad enough, they are unreadable to those with
any form of color blindness. Resear
For
the first time, a team at HZB has identified the atomic substructure of
amorphous silicon with a resolution of 0.8 nanometres using X-ray and
neutron scattering at BESSY II and BER II. Such a-Si:H thin films have
been used for decades in solar cells, TFT displays, and detectors. The
results show that three different phases form within the amorphous
matrix, which dramatically influences the qua
The
phenomenon of molecular outflow was first discovered in the 1980's.
Very high velocity motions were detected in the line wings of the carbon
monoxide (CO) molecule, seen towards young forming stars. The high
velocity motions obviously could not be gravitationally bound motions
(such as infall or rotation) because of the required large gravitating
masses. The first detections were in fact in th
Plants
have veins that transport nutrients throughout their whole body. These
veins are organized in a highly ordered manner. The plant hormone auxin
travels directionally from cell-to-cell and provides cells with
positional information, coordinating them during vein formation and
regeneration. Until now, it remained a mystery how cells translate auxin
signals into a formation of a complex system
Nature, Published online: 29 October 2020;
doi:10.1038/d41586-020-03057-y Fake social-media accounts are harder to
detect than ever before. Plus: Philae’s crash landing reveals the
softness of comet 67P, and why schools probably aren’t COVID hotspots.
Scientists
identified a novel family of sensors in the first layer of cells inside
the suction cups that have adapted to react and detect molecules that
don't dissolve well in water. The research suggests these sensors,
called chemotactile receptors, use these molecules to help the animal
figure out what it's touching and whether that object is prey.
We're
told not to eat too much sugar, but in reality, all of our cells are
covered in sugar molecules called glycans. Glycans regulate many
important processes including infection by bacteria and viruses, but
little is known about them because their structures are highly complex. A
team has now created a new suite of deep learning and bioinformatics
tools that enable the comprehensive study of gly
If
you've visited the beach recently, you might think sand is ubiquitous.
But in construction uses, the perfect sand and gravel is not always an
easy resource to come by.
Society
will require more food in the coming years to feed a growing
population, and seafood will likely make up a significant portion of it.
At the same time, we need to conserve natural habitats to ensure the
health of our oceans. It seems like a conflict is inevitable.
Researchers
are discovering that social isolation affects the health of men and
women in different ways -- including placing women at higher risk of
high blood pressure.
Knee
replacement surgery, also known as total knee arthroplasty (TKA), is
increasing among patients 65 and younger. One study projects a potential
183% increase in the number of TKA and revision TKA surgeries by the
year 2030 in that age group, raising concerns about poorer clinical
outcomes, lower patient satisfaction and diminished joint survival
compared to an older patient population.
Even for voters savvy enough to separate good information from bad,
just feeling exposed to misinformation is enough to make them cynical
about politics come Election Day, a new study shows. In the days and
weeks leading up to an election, sources bombard voters with
information—in the form of news stories, social media posts , phone
calls, text messages, and more. And in the age of “fake news,”
Nature, Published online: 29 October 2020;
doi:10.1038/d41586-020-03053-2 Genomes trace how the animals moved
around the world — often with humans by their side.
Ancient birds with wingspans up to 21 feet once patrolled the southern
oceans, according to fossils recovered from Antarctica in the 1980s. The
birds represent the oldest giant members of an extinct group of birds
that would dwarf the 11.5-foot wingspan of today’s largest bird , the
wandering albatross. “The big ones are nearly twice the size of
albatrosses, and these bony-toothed birds would hav
Welcome home welcome home oh oh oh the world is beautiful the world.
They’re not the most catchy lyrics. But after I’ve listened to
“Beautiful the World” half a dozen times, the chorus is stuck in my head
and my foot is tapping. Not bad for a melody generated by an AI trained
on a data set of Eurovision songs and koala and kookaburra cries. Back
in May, “Beautiful the World” won the AI Song Conte
A
global study of ancient dog DNA, led by scientists at the Francis Crick
Institute, University of Oxford, University of Vienna and
archaeologists from more than 10 countries, presents evidence that there
were different types of dogs more than 11,000 years ago in the period
immediately following the Ice Age.
A
new technique has been developed allowing reliable atomic-resolution
images to be taken, for the first time, of hybrid photoactive perovskite
thin films. These images have significant implications for improving
the performance of solar cell materials and broadened the understanding
of these technologically important materials. The breakthrough was
achieved by a joint team from the University of
While
the continents of Africa and Europe have been obvious and fruitful
treasure troves for exploration and discovery of our modern human
origins, Asia has been somewhat overlooked. Scientists have thought that
modern humans left Africa about 60,000 years ago and, as they colonized
Western Eurasia, found a world empty of any other archaic hominin
species. This assumption stemmed in part from the
Researchers
have analyzed the genome of the oldest human fossil found in Mongolia
to date and show that the 34,000-year-old woman inherited around 25
percent of her DNA from western Eurasians, demonstrating that people
moved across the Eurasian continent shortly after it had first been
settled by the ancestors of present-day populations. This individual and
a 40,000-year-old individual from China
The
bitter polarization between the Republican and Democratic parties in
the U.S. has been on the rise since Newt Gingrich's partisan combat
against President Bill Clinton in the 1990s. But according to a new
Northwestern University-led study, disdain for the opposing political
party now—and for the first time on record—outweighs affection for one's
own party.
Historically,
spring-run and fall-run Chinook salmon have been considered as separate
subspecies, races, ecotypes, or even as separate species of fish. A new
genetic analysis, however, shows that the timing of migration in
Chinook salmon is determined entirely by differences in one short
stretch of DNA in their genomes.
Magnets
are deployed in a range of technology applications, including
satellites, telephones and refrigerator doors. However, they are made up
of heavy, inorganic materials whose component elements are, in some
cases, of limited availability.
When
startled, do all fish respond the same way? A few fish, like Mexican
cavefish, have evolved in unique environments without any predators. To
see how this lack of predation impacts escape responses that are highly
stereotyped across fish species, scientists explored this tiny fish to
determine if there are evolved differences in them. Findings reveal that
the dramatic ecological differences be
The
fur of the platypus - an Australian species threatened with extinction -
glows green under ultraviolet light, a new study finds. This is the
first observation of biofluorescence in an egg-laying mammal
(monotreme), suggesting this extraordinary trait may not be as rare as
previously thought.
Using
stable isotope analysis, scientists showed that individual red foxes
(Vulpes vulpes) have a narrower diet than might be expected from their
omnivorous habits. The population of country foxes had a broader diet
than their urban conspecifics; the diet of urban and country foxes
showed little overlap. This combination of specialization and
flexibility is a key to this omnivore's adaptability.
There
seems to be a discrepancy between measurement of the expansion of the
Universe using radiation in the early Universe and using nearby objects.
Researchers have now contributed to this debate by focusing on
velocity.
Astronomers
have produced the most detailed family portrait of black holes to date,
offering new clues as to how black holes form. An intense analysis of
the most recent gravitational-wave data available led to the rich
portrait as well as multiple tests of Einstein's theory of general
relativity. (The theory passed each test.) The observations could be a
key piece in solving the many mysteries of
New
research examines the properties of the mucus of cystic fibrosis (CF)
patients and the role it plays in a pathogens' ability to survive. The
new information could have important implications for CF treatment.
Researchers develop guidelines to standardize analysis of electrodes.
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