Scaling laws in enzymes may help predict life ‘as we don’t know it'

A team of researchers is developing tools to predict the features of life as we don't know it.

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Mystery solved about the origin of the 30,000-year-old Venus of Willendorf

The almost 11 cm high figurine from Willendorf is one of the most important examples of early art in Europe. It is made of a rock called 'oolite' which is not found in or around Willendorf. Anthropologist, geologists and prehistorians have now found out, with the help of high-resolution tomographic images, that the material from which the Venus was carved likely comes from northern Italy. This sheds new light on the remarkable mobility of the first modern humans south and north of the Alps.

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Death spiral: A black hole spins on its side

Researchers found that the axis of rotation of a black hole in a binary system is tilted more than 40 degrees relative to the axis of stellar orbit. The finding challenges current theoretical models of black hole formation.

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What brain-eating amoebae can tell us about the diversity of life on earth and evolutionary history

Researchers recently announced that an amoeba called Naegleria has evolved more distinct sets of tubulins, used for specific cellular processes, than previously thought. Their insight has a host of implications, which range from developing treatments for brain-eating infections to better understanding how life on earth evolved such enormous diversity.

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Climate change: A threat to human wellbeing and health of the planet

Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report.

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Number of wildfires to rise by 50 percent by 2100 and governments are not prepared, UN experts warn

Climate change and land-use change are projected to make wildfires more frequent and intense, with a global increase of extreme fires of up to 14 percent by 2030, 30 percent by the end of 2050 and 50 percent by the end of the century, warns a new UN report. It calls for radical change in government spending on wildfires, shifting from reaction and response to prevention and preparedness.

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Largest ever human family tree: 27 million ancestors

Researchers have taken a major step towards mapping the entirety of genetic relationships among humans: a single genealogy that traces the ancestry of all of us.

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How some gut microbes awaken 'zombie' viruses in their neighbors

Gut bacteria brew all sorts of chemicals, but we don't know what most of them do. A new study suggests that one such compound, previously linked to cancer, may serve as a bizarre weapon in microbial skirmishes.

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The last day of the dinosaurs

The asteroid which killed nearly all of the dinosaurs struck Earth during springtime. This conclusion was drawn by an international team of researchers after having examined thin sections, high-resolution synchrotron X-ray scans, and carbon isotope records of the bones of fishes that died less than 60 minutes after the asteroid impacted.

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Evidence for exotic magnetic phase of matter

Scientists have discovered a long-predicted magnetic state of matter called an antiferromagnetic excitonic insulator -- broadly speaking, a novel type of magnet. Understanding the connections between electrons' 'spin' and charge in such materials could have potential for realizing new technologies.

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Singing in the brain

For the first time, neuroscientists have identified a population of neurons in the human brain that light up when we hear singing, but not other types of music.

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Onset of modern sea level rise began in 1863, study finds

Scientists have found that modern rates of sea level rise began emerging in 1863 as the Industrial Age intensified, coinciding with evidence for early ocean warming and glacier melt. The study, which used a global database of sea-level records spanning the last 2,000 years, will help local and regional planners prepare for future sea-level rise. 

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Likelihood of extreme autumn fire weather has increased 40 percent, modeling shows

The likelihood of hot, dry, windy autumn weather that can set the stage for severe fires in California and western Oregon has increased 40 percent due to human-caused climate change, new computer models show.

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स्मार्ट ट्रैफिक लाइट ने दी लोगों को सिगनल न तोड़ने की सलाह, वीडियो देख हो जाएंगे हैरान

हवा के चलते लाइट्स हिल रही है लेकिन इस अंदाज में हिल रही है कि नो-नो साइन बन रही है। यह दृश्य बेहद प्यारा है। किसी व्यक्ति ने दृश्य को अपने मोबाइल में रिकॉर्ड कर लिया है। वहीं कई गाड़ियां सिग्नल के पास खड़ी हैं।

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युवक को रेलवे ट्रैक पर स्टंटबाजी करना पड़ा महंगा, वीडियो देख हो जाएंगे हैरान

इस वीडियो में साफ देखा जा सकता है कि एक किसी क्रासिंग पर रेल फाटक लगा है। इसके बावजूद कुछ लोग जबरन फाटक के नीचे से आवागमन कर रहे हैं। हालांकि ऐसा करना गैर क़ानूनी है। साथ ही सेहत के लिए हानिकारक है।

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Scientists reveal how Venus fly trap plants snap shut

Scientists have revealed the three-dimensional structure of Flycatcher1, an aptly named protein channel that may enable Venus fly trap plants to snap shut in response to prey. The structure of Flycatcher1 helps shed light on longstanding questions about the remarkably sensitive touch response of Venus fly traps. The structure also gives the researchers a better understanding of how similar proteins in organisms including plants and bacteria, as well as proteins in the human body with similar functions (called mechanosensitive ion channels), might operate.

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Flies possess more sophisticated cognitive abilities than previously known

Common flies feature more advanced cognitive abilities than previously believed. Using a custom-built immersive virtual reality arena, neurogenetics and real-time brain activity imaging, researchers found attention, working memory and conscious awareness-like capabilities in fruit flies.

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Sudden evolutionary change

Researchers have identified a case of a sudden evolutionary change. In a new study, the scientists describe a population of columbines that have lost their petals, including the characteristic nectar spurs. The finding adds weight to the idea that adaptation can occur in large jumps, rather than merely plodding along over extended timespans.

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Ancestors of legionella bacteria infected cells two billion years ago

Researchers have discovered that the ancestors of legionella bacteria infected eukaryotic cells as early as two billion years ago. It happened soon after eukaryotes began to feed on bacteria. These results are also relevant to the chicken-or-egg debate about whether mitochondria or phagocytosis came first.

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U.S. coastline to see up to a foot of sea level rise by 2050

The United States is expected to experience as much sea level rise by the year 2050 as it witnessed in the previous hundred years. That's according to a NOAA-led report updating sea level rise decision-support information for the U.S. released in partnership with half a dozen other U.S.federal agencies.

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Orangutans instinctively use hammers to strike and sharp stones to cut, study finds

Untrained, captive orangutans can complete two major steps in the sequence of stone tool use: striking rocks together and cutting using a sharp stone, according to a new study.

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Atomic clocks measure Einstein's general relativity at millimeter scale

Physicists have measured Albert Einstein's theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, separated by just a millimeter or the width of a sharp pencil tip, tick at different rates.

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Ultraprecise atomic clock poised for new physics discoveries

Physicists have made one of the highest performance atomic clocks ever. ­­ Their instrument, known as an optical lattice atomic clock, can measure differences in time to a precision equivalent to losing just one second every 300 billion years and is the first example of a 'multiplexed' optical clock, where six separate clocks can exist in the same environment. Its design allows the team to test ways to search for gravitational waves, attempt to detect dark matter, and discover new physics with clocks.

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Supermassive black hole caught hiding in a ring of cosmic dust

The European Southern Observatory's Very Large Telescope Interferometer (ESO's VLTI) has observed a cloud of cosmic dust at the centre of the galaxy Messier 77 that is hiding a supermassive black hole. The findings have confirmed predictions made around 30 years ago and are giving astronomers new insight into "active galactic nuclei", some of the brightest and most enigmatic objects in the universe.

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Breakthrough in converting carbon dioxide into fuel using solar energy

A research team has shown how solar power can convert carbon dioxide into fuel, by using advanced materials and ultra-fast laser spectroscopy. The breakthrough could be an important piece of the puzzle in reducing the levels of greenhouse gases in the atmosphere in the future.

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Key brain mechanisms for organizing memories in time

Using experiments and a deep machine learning data analysis approach, scientists uncovered the fundamental workings of the hippocampus region of the brain as it organizes memories into time sequences. The work could help future research into cognitive disorders such as Alzheimer's disease and other causes of dementia.

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'Math neurons' identified in the brain

The brain has neurons that fire specifically during certain mathematical operations. The findings indicate that some of the neurons detected are active exclusively during additions, while others are active during subtractions. They respond in the same manner whether the calculation instruction is written down as a word or a symbol.

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First evidence indicating dinosaur respiratory infection

Scientists have discovered the first evidence of a unique respiratory infection in the fossilized remains of a dinosaur that lived nearly 150 million years ago. Researchers examined the remains of an immature diplodocid -- a long-necked herbivorous sauropod dinosaur, like 'Brontosaurus' - dating back to the Late Jurassic Period of the Mesozoic Era. The dinosaur nicknamed 'Dolly,' discovered in southwest Montana, had evidence of an infection in the area of its neck vertebrae.

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Chemical history of the Milky Way revealed by new catalog of tens of millions of stars

Researchers published a new sample catalog of more than 24 million stars that can be used to decipher the chemical history of elements in the Milky Way galaxy.

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Planetary bodies observed for first time in 'habitable zone' of dead star

A ring of planetary debris studded with moon-sized structures has been observed orbiting close to a white dwarf star, hinting at a nearby planet in the 'habitable zone' where water and life could exist, according to a new study. White dwarfs are glowing embers of stars that have burned through all their hydrogen fuel. Nearly all stars, including the Sun, will eventually become white dwarfs, but very little is known about their planetary systems.

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Biohybrid fish made from human cardiac cells swims like the heart beats

Scientists have developed the first fully autonomous biohybrid fish from human stem-cell derived cardiac muscle cells. The artificial fish swims by recreating the muscle contractions of a pumping heart, bringing researchers one step closer to developing a more complex artificial muscular pump and providing a platform to study heart disease like arrhythmia.

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कामचोर व्यक्ति ने अजीबोगरीब अंदाज में की दोस्त की मदद, वीडियो देख हंसी नहीं रोक पाएंगे

इस वीडियो को भारतीय सेवा अधिकारी Dipanshu Kabra ने सोशल मीडिया ट्विटर पर अपने अकांउट से शेयर किया है। इसके कैप्शन में उन्होंने लिखा है-काम करो या ना करो काम का ज़िक्र और फिक्र ज़रूर करते दिखो। इस वीडियो को खबर लिखे जाने तक 9 हजार बार देखा गया है।

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Clearance of protein linked to Alzheimer's controlled by circadian cycle

The brain's ability to clear a protein closely linked to Alzheimer's disease is tied to our circadian cycle, according to new research. The research underscores the importance of healthy sleep habits in preventing the protein Amyloid-Beta 42 (AB42) from forming clumps in the brain, and opens a path to potential Alzheimer's therapies.

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Calorie restriction trial reveals key factors in extending human health

Decades of research has shown that limits on calorie intake by flies, worms, and mice can enhance life span in laboratory conditions. But whether such calorie restriction can do the same for humans remains unclear. Now a new study confirms the health benefits of moderate calorie restrictions in humans -- and identifies a key protein that could be harnessed to extend health in humans.

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दिव्यांग व्यक्ति ने दिखाया अपनी प्रतिभा का हुनर, वीडियो देख हो जाएंगे हैरान

वीडियो में साफ देखा जा सकता है कि एक दिव्यांग व्यक्ति अपने पैरों की मदद से ड्रम बजा रहा है। दिव्यांग व्यक्ति के हाथ नहीं हैं। इसके बावजूद उसे कुदरत से कोई शिकायत नहीं है और वह अपनी कमजोरी को मजबूती में बदलकर बेहतर करने की कोशिश कर रहा है।

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Globe’s glaciers have less ice than previously thought

Research revises estimates of glacial ice volume, suggesting that there is less ice in the world's glaciers than previously thought. The findings have implications on freshwater and global sea level rise.

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Chimpanzee mother seen applying an insect to a wound on her son

Researchers have observed chimpanzees in Gabon, West Africa applying insects to their wounds and the wounds of others. Scientists describe this wound-tending behavior and argue that it is evidence that chimpanzees have the capacity for prosocial behaviors that have been linked with empathy in humans.

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Biologists investigate smallest propeller on Earth

Scientists have discovered new information about the tiny propellers used by single-cell organisms called archaea.

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Protons are probably actually smaller than long thought

A few years ago, a novel measurement technique showed that protons are probably smaller than had been assumed since the 1990s. The discrepancy surprised the scientific community; some researchers even believed that the Standard Model of particle physics would have to be changed. Physicists have now developed a method that allows them to analyze the results of older and more recent experiments much more comprehensively than before. This also results in a smaller proton radius from the older data. So there is probably no difference between the values - no matter which measurement method they are based on.

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Preventing pandemics costs far less than controlling them

An analysis by epidemiologists, economists, ecologists and biologists at 21 institutions finds we could reduce the risks of future pandemics by investing as little as 1/20th of the losses incurred so far from COVID into conservation measures designed to stem the spread of zoonotic viruses from wildlife to humans in the first place. This includes funding programs to train more veterinarians, create a global database of virus genomics, and end tropical deforestation and wildlife trafficking.

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Study in mice shows potential for gene-editing to tackle mitochondrial disorders

Defective mitochondria -- the 'batteries' that power the cells of our bodies -- could in future be repaired using gene-editing techniques. Scientists have now shown that it is possible to modify the mitochondrial genome in live mice, paving the way for new treatments for incurable mitochondrial disorders.

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Genetically informed atlases reveal new landscapes in brain structure

Scientists have used atlases of the human brain informed by genetics to identify hundreds of genomic loci. The findings illuminate how genes impact the brain and diseases.

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Viral Video: जुगाड़ लगाकर लोगों ने बोरवेल में गिरे बकरी के बच्चे की बचाई जान

वीडियो को भारतीय वन सेवा के अधिकारी रूपिन शर्मा ने सोशल मीडिया ट्विटर पर अपने अकांउट से शेयर किया है। इसके कैप्शन में लिखा है-बचाव दल...। इस वीडियो को खबर लिखे जाने तक 12 हजार से अधिक बार देखा गया है।

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Viral Video: राह चलते लोगों को व्यक्ति ने की ऐसी मदद, वीडियो देख हो जाएंगे हैरान

Viral Video इस वीडियो में साफ देखा जा सकता है कि एक व्यक्ति अपनी गाड़ी लेकर किसी राष्ट्रीय राजमार्ग पर खड़ा है। उसकी गाड़ी से धुएं निकल रहे हैं। मानो ऐसा लगता है कि गाड़ी में आग लग गई है। वह व्यक्ति मदद के लिए लोगों को देख रहे हैं।

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Puffy planets lose atmospheres, become super-Earths

Astronomers have identified two different cases of 'mini-Neptune' planets that are losing their puffy atmospheres and likely transforming into super-Earths.

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Early humans placed the hearth at the optimal location in their cave -- for maximum benefit and minimum smoke exposure

A new study provides evidence for high cognitive abilities in early humans who lived 170,000 years ago. Researchers discovered that the early humans who occupied a cave had placed their hearth at the optimal location -- enabling maximum utilization of the fire for their activities and needs while exposing them to a minimal amount of smoke.

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Number of Earth's tree species estimated to be 14% higher than currently known, with some 9,200 species yet to be discovered

A new study involving more than 100 scientists from across the globe and the largest forest database yet assembled estimates that there are about 73,000 tree species on Earth, including about 9,200 species yet to be discovered.

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A map for the sense of smell

Our sensory systems provide us with immediate information about the world around us. Now researchers have created a sensory map for smell. The map details how the fruit fly's olfactory receptor neurons, the components that sense smell, are organized within the insect's sensory hairs.

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Extreme exoplanet has a complex and exotic atmosphere

An international team analyzed the atmosphere of one of the most extreme known planets in great detail. The results from this hot, Jupiter-like planet that was first characterized with the help of the CHEOPS space telescope, may help astronomers understand the complexities of many other exoplanets -- including Earth-like planets.

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Cosmic physics mimicked on table-top as graphene enables Schwinger effect

Researchers have succeeded in observing the so-called Schwinger effect, an elusive process that normally occurs only in cosmic events. By applying high currents through specially designed graphene-based devices, the team succeeded in producing particle-antiparticle pairs from a vacuum.

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Scientists explain mysterious finger-like features in solar flares

Astronomers have presented a new explanation for the mysterious downward-moving dark voids seen in some solar flares.

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Where did that sound come from?

Neuroscientists developed a computer model that can localize sounds. The model, which consists of several convolutional neural networks, not only performs the task as well as humans do, it also struggles in the same ways that humans do when the task is made more difficult by adding echoes or multiple sounds.

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New experiment results bolster potential for self-sustaining fusion

For more than 60 years, scientists have sought to understand and control the process of fusion, a quest to harness the vast amounts of energy released when nuclei in fuel come together. A new paper describes recent experiments that have achieved a burning plasma state in fusion, helping steer fusion research closer than it has ever been to its ultimate goal: a self-sustaining, controlled reaction.

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What the rise of oxygen on early Earth tells us about life on other planets

When did the Earth reach oxygen levels sufficient to support animal life? Researchers have discovered that a rise in oxygen levels occurred in step with the evolution and expansion of complex, eukaryotic ecosystems. Their findings represent the strongest evidence to date that extremely low oxygen levels exerted an important limitation on evolution for billions of years.

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Zika vaccine shows promising results in preclinical studies

A Zika virus vaccine candidate is effective at preventing the Zika virus passing from mother to fetus in preclinical animal studies, according to a new study.

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अपनी शादी में दुल्हन ने किया शानदार डांस, वीडियो देख हो जाएंगे हैरान

इस वीडियो को आशीष राजपूत ने सोशल मीडिया ट्विटर पर अपने अकांउट से शेयर किया है। इसके कैप्शन में उन्होंने लिखा है-लड़की हूं अपनी बारात में नाच सकती हूं - भोपाल के बैरागढ़ की भावना ने खुद की बारात में किया शानदार डांस।

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