[ Move / Disable blocks ]
- All Top News -- ScienceDaily
Top science stories featured on ScienceDaily's home page.
'Artificial leaf' successfully produces clean gasA widely-used gas that is currently produced from fossil fuels can instead be made by an 'artificial leaf' that uses only sunlight, carbon dioxide and water, and which could eventually be used to develop a sustainable liquid fuel alternative to gasoline.Schools of molecular 'fish' could improve display screensResearchers are using liquid crystals to create incredibly small, swirling schools of 'fish.' The fish in this case are minute disruptions in the orientations of the molecules that make up solutions of liquid crystals.Gimme six! Researchers discover aye-aye's extra fingerThe world's weirdest little primate has gotten even weirder, thanks to the discovery of a tiny extra digit. Aye-ayes possess small 'pseudothumbs' -- complete with their own fingerprints --- that may help them grip objects and branches as they move through trees. This is the first accessory digit ever found in a primate.Mars once had salt lakes similar to those on EarthMars once had salt lakes that are similar to those on Earth and has gone through wet and dry periods.Lifestyle is a threat to gut bacteria: Ötzi proves it, study showsThe evolution of dietary and hygienic habits in Western countries is associated with a decrease in the bacteria that help in digestion. These very bacteria were also found in the Iceman, who lived 5300 years ago, and are still present in non-Westernized populations in various parts of the world. The depletion of the microbiome may be associated with the increased prevalence, in Western countries, of complex conditions like allergies, autoimmune and gastrointestinal diseases, obesity.Ancient stars shed light on Earth's similarities to other planetsEarth-like planets may be common in the universe, a new study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not unique.Arthropods formed orderly lines 480 million years agoResearchers studied fossilized Moroccan Ampyx trilobites, which lived 480 million years ago and showed that the trilobites had probably been buried in their positions -- all oriented in the same direction. Scientists deduced that these Ampyx processions may illustrate a kind of collective behavior adopted in response to cyclic environmental disturbances.Daily exposure to blue light may accelerate aging, even if it doesn't reach your eyesProlonged exposure to blue light, such as that which emanates from your phone, computer and household fixtures, could be affecting your longevity, even if it's not shining in your eyes. New research suggests that the blue wavelengths produced by light-emitting diodes damage cells in the brain as well as retinas, according to a new study in a model organism.
- Nature - Issue - nature.com science feeds
Nature is the international weekly journal of science: a magazine style journal that publishes full-length research papers in all disciplines of science, as well as News and Views, reviews, news, features, commentaries, web focuses and more, covering all branches of science and how science impacts upon all aspects of society and life.
Braess’s paradox and programmable behaviour in microfluidic networks
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1701-6Microfluidic systems controlled by a single driving pressure are programmed to exhibit complex flow-switching schemes and a fluid analogue of Braess’s paradox by exploiting fluid inertia and network design.Engineering orthogonal signalling pathways reveals the sparse occupancy of sequence space
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1639-8Engineered two-component signalling proteins in Escherichia coli have residue specificities different to their parent proteins and are orthogonal to all extant paralogues, demonstrating that sequence space is not densely occupied.Heterogeneity in old fibroblasts is linked to variability in reprogramming and wound healing
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1658-5Fibroblasts from old mice are heterogeneous, which affects the ability of these fibroblasts to reprogram into induced pluripotent stem cells in vitro and influences wound healing rate in vivo.Teamwork by different T-cell types boosts tumour destruction by immunotherapy
Nature, Published online: 23 October 2019; doi:10.1038/d41586-019-03106-1Immunotherapy treatment harnesses CD8 T cells of the immune system to kill tumour cells. The finding that CD4 helper T cells contribute to the success of this treatment in mice might offer a way to improve clinical outcomes.New universities pioneer different approaches to excellence in teaching, governance
Nature, Published online: 23 October 2019; doi:10.1038/d41586-019-03177-0Riding the wave of rapid growth in global higher education.Chimeric peptidomimetic antibiotics against Gram-negative bacteria
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1665-6A class of chimeric synthetic antibiotics that bind to lipopolysaccharide and BamA shows potent activity against multidrug-resistant Gram-negative bacteria, with the potential to address life-threatening infections.Pan-cancer whole-genome analyses of metastatic solid tumours
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1689-yThe mutational landscape of metastatic cancer genomes is analysed in a large-scale, pan-cancer study of metastatic solid tumours that includes whole-genome sequencing of 2,520 tumour–normal tissue pairs.The landscape of somatic mutation in normal colorectal epithelial cells
Nature, Published online: 23 October 2019; doi:10.1038/s41586-019-1672-7Genome sequencing of hundreds of normal colonic crypts from 42 individuals sheds light on mutational processes and driver mutations in normal colorectal epithelial cells.
- Universe Today
Space and astronomy news
Did an Ancient Supernova Force Humans to Walk Upright?
A new study hints at a possible fascinating twist in human evolution. Did a chain of cosmic events triggered by a nearby ancient supernova force humans to walk upright? The study, out earlier this year, points to an unlikely source for modern human bipedal locomotion: the effect on our environment of a nearby supernova or …
The post Did an Ancient Supernova Force Humans to Walk Upright? appeared first on Universe Today.Now that Many Countries Have the Ability to Destroy Satellites, the US is Figuring Out Ways to Make Them More Armored
With all the advances made in anti-satellite technology, Sandia National Laboratories is seeking partnerships to develop satellites that can defend themselves
The post Now that Many Countries Have the Ability to Destroy Satellites, the US is Figuring Out Ways to Make Them More Armored appeared first on Universe Today.A NASA Panel Says We Don’t Need to be so Careful About Infecting Other Worlds
It’s time to update the rules. That’s the conclusion of a panel that examined NASA’s rules for planetary protection. It was smart, at the dawn of the space age, to think about how we might inadvertently pollute other worlds with Earthly microbes as we explore the Solar System. But now that we know a lot …
The post A NASA Panel Says We Don’t Need to be so Careful About Infecting Other Worlds appeared first on Universe Today.Time-lapse Captured from the International Space Station
400 photos. 11 minutes. That’s what it took to create this time-lapse of the Earth and stars as the International Space Station over Namibia toward the Red Sea. NASA astronaut Christina Koch captured these images. It’s obvious that the circular streaks in the sky are star-trails. But the lights on the ground have different sources. …
The post Time-lapse Captured from the International Space Station appeared first on Universe Today.How Long is a Day on Venus? Astronomers Make Their Best Measurement Yet
There’s a problem with Venus. We don’t know how fast it rotates. For a space-faring civilization like ours, that’s a problem. Measuring the length of day, or rotation rate, of most bodies is pretty straightforward. Mark a prominent surface feature and time how long it takes to rotate 360 degrees. But Venus is blanketed in …
The post How Long is a Day on Venus? Astronomers Make Their Best Measurement Yet appeared first on Universe Today.The Most Massive Galaxies Spin More Than Twice as Fast as the Milky Way
Based on new observations of super spiral galaxies, a team of scientists has found that they have massive dark matter halos that cause them to rotate much faster than our own!
The post The Most Massive Galaxies Spin More Than Twice as Fast as the Milky Way appeared first on Universe Today.Comets and Interstellar Objects Could be Exporting Earth Life Out into the Milky Way
A new study suggests that comets and asteroids that graze Earth's atmosphere might be responsible for the spread of life throughout the Universe.
The post Comets and Interstellar Objects Could be Exporting Earth Life Out into the Milky Way appeared first on Universe Today.Success! NASA Confirms the Mole is Working Again.
After months of setbacks, NASA says that the InSight Lander’s Mole is working again. InSight landed on Mars on Nov. 26 2018 in Elysium Planitia. Its mission is to study the interior of the planet, to learn about how Mars and other rocky planets formed. InSight (Interior Exploration using Seismic Investigations, Geodesy, and Heat Transport) …
The post Success! NASA Confirms the Mole is Working Again. appeared first on Universe Today.
- Latest Items from TreeHugger
The most recent 30 items from TreeHugger
Chinese city has the largest Passive House project in the worldGaobeidian Railway City is jaw-dropping, showing how to scale energy efficient building.How ants are so much better at traffic than we areDespite their endless commuting, ants don't have traffic jams, regardless of the width of their path.Frequent flyer programs should be abolished, report saysThey incentivize air travel at a time when people should be flying less.E-bike sales hit almost $15 billion last yearNew studies find that sales are big and getting bigger. It's time to give them a safe place to ride.Some thoughts on owning an Instant PotI thought the appliance would save me time, but mostly it gives me peace of mind.Photo: Golden-crowned sparrow has the sweetest golden crownOur photo of the day comes from Emigrant Lake, Oregon.The incredible reason whales could be worth $2 million eachEconomists with the IMF crunched the numbers to quantify the economic value of a whale's life; what they found is astonishing.The greenest condo is the one already standingHere's a lovely renovation using the healthiest materials, and as few of them as possible.
- New Scientist - News
New Scientist - News
Genome sequencing guides people with metastatic cancer to best therapyBy sequencing the genomes of tumours from more than 2000 people with advanced cancer, researchers have helped many of them find the best treatment option currently availableGut microbes help mice overcome their fears by changing brain activityMice without healthy gut bacteria have a hard time moving on from fearful situations, adding to evidence that the microbiome influences how the mammalian brain worksMice fed a high salt diet lose the ability to perform simple tasksA high-salt diet gradually reduced rodents' ability to perform simple tasks, perhaps because the diet leads to an accumulation of a protein linked to dementiaThe solar system has too many moons – it's time for a cullDesignating rocks just a few kilometres across as moons is misleading and ridiculous. We need to do a Pluto and cut moons down to size, argues Leah CraneBenzodiazepines and z-drugs are prescribed more in poorer areasMore than 14 million prescriptions for benzodiazepine and z-drugs were made in England in 2017, with more being filled in areas of socio-economic deprivationFiguring out why trees are strong could help build wooden skyscrapersStudying the nanostructure of live wood has revealed tiny cylinders that provide strength - a property we could exploit for green buildingsTaking blood pressure drugs at night may make them more effectiveTaking blood pressure medication just before bed rather than in the morning seems to make it more effectiveCholine: The forgotten vital nutrient we’re not getting enough ofStandard nutritional advice to cut down on meat and dairy may be stopping us getting enough of an essential nutrient named choline. Should we be worried?
- Latest articles | Smithsonian
RSS feed for with the latest articles
Holly Cow! Fattest Bear of Them All Claims Coveted TitleFor #FatBearWeek2019, the furever fabulous 435 Holly reigns triumphantThe Best Places Around the World to See Bats (by the Millions)Bat tourism might sound creepy, but it may be the best way to help bat conservation around the worldWas the 1968 TV Show 'Julia' a Milestone or a Millstone for Diversity?Diahann Carroll's award-winning series was a hit, but it delivered a sanitized view of African-American lifeHow an Astonishing Holocaust Diary Resurfaced in AmericaHidden for 70 years, a new invaluable contribution to Holocaust literature—the diary of Renia Spiegel—was rediscovered inside a desk in New York14 Fun Facts About Giant PandasMother Mei Xiang pregnant is not pregnant this year. Giant Panda house returns to normal operating hoursWhat Makes Francisco Toledo 'El Maestro'Mexico's most important living artist mixes magical realism with passionate rebellionThe Longest Running Web Cam, Set to Go Offline, Has Been SavedThe camera has been recording San Francisco’s fog for 25 yearsWhat David Levinthal’s Photos of Toys Reveal About American Myth and MemoryA new show at the Smithsonian American Art Museum reflects on iconic events including JFK's assassination, flag raising at Iwo Jima and Custer's last stand
- Science current issue
Science RSS feed -- current issue
- Scientific American Content: Global
Science news and technology updates from Scientific American
Dinosaur-Killing Meteorite Caused Acidification That Led to Mass ExtinctionThe lowering of ocean pH linked to the Chicxulub impact is similar to what could happen if modern carbon dioxide emissions continue -- Read more on ScientificAmerican.comThe Woman Who Founded Industrial MedicinePathologist Alice Hamilton was among the first to focus attention on the dangers of lead, explosives and noxious chemicals in the workplace -- Read more on ScientificAmerican.comGoogle Publishes Landmark Quantum Supremacy ClaimThe company says that its quantum computer is the first to perform a calculation that would be practically impossible for a classical machine -- Read more on ScientificAmerican.comOne Man, Two Kinds of CreativityPainter and mathematician Edward Belbruno inhabits both worlds with equal comfort -- Read more on ScientificAmerican.comScientists Program CRISPR to Fight Viruses in Human CellsA common gene editing enzyme could be used to disable RNA viruses such as flu or Ebola -- Read more on ScientificAmerican.comGalloping Ant Beats Saharan HeatThe Saharan silver ant feeds on other insects that have died on the hot sands, which it traverses at breakneck (for an ant) speeds. -- Read more on ScientificAmerican.comIn Shocking Reversal, Biogen to Submit Experimental Alzheimer's Drug for ApprovalThe decision contradicts an earlier one to halt studies of the therapy, which followed a series of failed drugs that targeted diseased brain protein -- Read more on ScientificAmerican.comGetting More Sleep Can Reduce Food CravingsThere’s a connection between sleep and hunger. Getting better quality sleep may help with appetite, cravings, and ultimately, weight loss -- Read more on ScientificAmerican.com
- NASA Breaking News
A RSS news feed containing the latest NASA news articles and press releases.
NASA Invites Media to Next SpaceX Space Station Cargo LaunchMedia accreditation is open for the launch of the next SpaceX delivery of science investigations, supplies, and equipment to the International Space Station.NASA Administrator Invites Public to Update on Agency’s Return to MoonThe public is invited to join NASA Administrator Jim Bridenstine at 9:40 a.m. EDT Friday, Oct. 25, for an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars.Maryland, Washington Students to Speak with NASA Astronaut Aboard Space StationStudents from Maryland and Washington, D.C., will have an opportunity this week to talk with a NASA astronaut currently living and working aboard the International Space Station.NASA Invites Media to Boeing Starliner Transport to Launch SiteMedia accreditation is open for two-days of activities in mid-November for the next milestone in NASA’s Commercial Crew Program, as Boeing’s CST-100 Starliner is transported for integration on a United Launch Alliance (ULA) Atlas V rocket.NASA to Provide Coverage of Key Events at 70th International Astronautical CongressNASA will provide live coverage on NASA Television of key events at the 70th International Astronautical Congress (IAC), which takes place Oct. 21-25 at the Walter E. Washington Convention Center in Washington.In-Space News Conference to Review First All-Woman SpacewalkNASA astronauts Christina Koch and Jessica Meir will participate in a news conference from orbit at noon EDT, Monday, Oct. 21, following their Friday spacewalk – the first to be conducted by two women.NASA’s Planetary Protection Review Addresses Changing Reality of Space ExplorationNASA released a report Friday with recommendations from the Planetary Protection Independent Review Board (PPIRB) the agency established in response to a recent National Academies of Sciences, Engineering, and Medicine report and a recommendation from the NASA Advisory Council.NASA to Televise First All-Female Spacewalk, Host Media TeleconferenceOn the first ever all-female spacewalk, NASA astronauts Christina Koch and Jessica Meir will venture outside the International Space Station about 7:50 a.m. EDT Friday, Oct. 18, to replace faulty equipment on the station’s exterior. Live coverage will begin at 6:30 a.m. on NASA Television and the agency’s website.
- ESA Top News
ESA Top News
Air-breathing engine precooler achieves record-breaking Mach 5 performance
UK company Reaction Engines has tested its innovative precooler at airflow temperature conditions equivalent to Mach 5, or five times the speed of sound. This achievement marks a significant milestone in its ESA-supported development of the air-breathing SABRE engine, paving the way for a revolution in space access and hypersonic flight.Automating collision avoidance
ESA is preparing to use machine learning to protect satellites from the very real and growing danger of space debris.
The Agency is developing a collision avoidance system that will automatically assess the risk and likelihood of in-space collisions, improve the decision making process on whether or not a manoeuvre is needed, and may even send the orders to at-risk satellites to get out of the way.New era of locally-sourced resources in space
This month space experts from all over the world convened in Luxembourg for the first Space Resources Week to discuss how best to explore our Solar System sustainably and limit costly transport of resources from Earth. For example, can we produce water and oxygen on the Moon?New rocket fairing design offers smoother quieter ride
Satellites are built to live in the harsh environment of space but engineers must also factor in the rigours of the journey there. ESA has helped RUAG Space Switzerland to develop new rocket fairings that offer a smoother quieter ride to space.Presenting ESA Web TV
Tune in to ESA’s latest digital channel: ESA Web TV! This is ESA’s one-stop-shop for all live events from launches to lectures.A new look for ESA’s website
Welcome to a new fresh look for our website! With a new content structure reflecting ESA’s ambitions for the future, and more focus on images and video, we hope you will find our website more engaging and dynamic.Emerging cracks in the Pine Island Glacier
The Copernicus Sentinel-1 and Sentinel-2 satellites have revealed new cracks, or rifts, in the Pine Island Glacier – one of the primary ice arteries in the West Antarctic Ice Sheet. The two large rifts were first spotted in early 2019 and have each rapidly grown to approximately 20 km in length.Solar Orbiter ready to depart Europe
ESA’s Solar Orbiter mission has completed its test campaign in Europe and is now being packed ready for its journey to Cape Canaveral at the end of this month, ahead of launch in February 2020.
- -- Twitter feed only --