Docking with the ISS may seem simple. However, actually doing so shows how difficult orbital mechanics can be. It's like traveling down a highway at 28,000 km/hr (17,000 mph) and parallel parking in an open garage on a multibillion-dollar laboratory traveling at the same speed.
Electrolysis can reduce CO2 to CO, a raw material for chemical products such as fuels. Within the GreenQUEST project, an international team led by HZB chemist Prashanth Menezes has systematically investigated catalyst layers made of silver nanoparticles, varying both particle
When a spacecraft reenters Earth's atmosphere at hypersonic velocities, its protective heat shield faces extreme conditions, including temperatures beyond 3,000 degrees Fahrenheit (1,650 degrees Celsius). To survive, the shield relies on specialized materials that absorb heat
Would it be the end of humanity? The post A Blow‑by‑Blow Account of What Would Happen If the Yellowstone Supervolcano Erupted Now appeared first on Nautilus .
A new analysis suggests mammograms may lead to far less breast cancer overdiagnosis than some earlier studies indicated. Researchers reexamined all eight major randomized screening trials and accounted for differences in follow-up time, screening frequency, and screening after
A team of INRAE scientists, in collaboration with Université Côte d'Azur and Nanjing Agricultural University in China, has used an innovative AI-based method to identify the sex pheromone of the lily moth1 and the olfactory receptors associated with it. The insect pest, whose
Researchers found that scented cleaners can react with ozone indoors to create billions or trillions of invisible nanoparticles that can penetrate deep into the lungs. The pollution forms within minutes and, in some cases, may produce an inhaled particle dose comparable to or
Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth’s carbon cycle, may instead have been produced by local magma, hydrocarbons, and methane-eating microbes. The discovery raises new questions about
Scientists discovered that tiny amounts of lead in ancient ink can make writing inside burned papyrus scrolls stand out dramatically in X-ray scans. The technique could help unlock lost Greek and Roman texts preserved by the eruption of Mount Vesuvius nearly 2,000 years ago.
In 1872, New York’s devastating epizootic gave the ASPCA’s young founder a powerful moral argument for animal protection
And it’s already endangered The post A Striking New Fish Species Discovered in Amazon appeared first on Nautilus .
Scientists recreated a particle-forming process linked to the extreme physics of the early universe using a 13-ion quantum simulator. The breakthrough suggests quantum computers could eventually help researchers investigate how matter formed and evolved after the Big Bang.
In 1967, a Malawian farmer stumbled upon a hidden hoard of eight copper ingots buried beneath a tree. Now, more than half a century later, scientists have traced the metal to its source: a copper mine nearly 800 km (500 miles) away.
Artemis II astronauts Victor Glover and Reid Wiseman are transitioning to emeritus status at NASA after their historic journey around the Moon earlier this year. The pair will continue advising and mentoring NASA teams as preparations accelerate for Artemis III and future lunar
Tirzepatide, sold as Mounjaro and Zepbound, activated calorie-burning brown fat in obese mice, revealing a potential metabolic effect beyond appetite suppression. If confirmed in humans, the finding could help explain the drug’s powerful benefits and inspire more comprehensive
A new study from Ben-Gurion University of the Negev (BGU) has identified a molecular switch that controls whether stressed human cells activate a survival mechanism or trigger programmed cell death (apoptosis). The findings, published in Redox Biology, provide insights that
A research team from The Education University of Hong Kong (EdUHK) and East China Normal University (ECNU) has published a meta-analysis demonstrating the impact of digital textbooks (DTs) on student motivation. Synthesizing 27 experimental and quasi-experimental studies
Antibodies made by the immune system can sometimes target human brain cells, producing psychiatric symptoms. Researchers aim to better identify such rare cases as well as fine-tune treatments.
As if middle-aged people don’t have enough to worry about The post How Fast You Age During 40s May Predict Memory Lapses in Your 50s appeared first on Nautilus .
Scientists discovered a surprising energy paradox in the brain during REM sleep, the stage most closely associated with dreaming. Blood supply to the brain begins increasing even before REM starts, but neurons’ immediately available energy, measured as ATP, then drops. The
More than 40 million people in the northeastern United States braced Friday for heavy rain and strong winds as an unusually powerful storm for the season was forecast to crash into the region.
Bangkok authorities declared a flood disaster across the Thai capital on Saturday after almost 48 hours of heavy rain left canals full, roads submerged and residents wading through deep water.
Wildfires that tore through Indonesian Borneo's vast tropical forests have increased pressure on critically endangered Bornean orangutans, the International Union for Conservation of Nature (IUCN) said Saturday.
In a freshwater canal surrounded by mangroves in southern Guatemala, hundreds of baby tropical gars—a torpedo-shaped fish with an alligator-like snout dubbed the "fossil fish"—are released into the wild.
An estimated 38 trillion bacteria live in the human body—and only a small fraction are harmful to our health. However, the harmful ones can cause serious illness, especially when they develop resistance to antibiotics.
Scientists think beneficial fungi could help transform nutrient-poor lunar and Martian regolith into a material capable of supporting crops. By helping plants access nutrients and withstand harsh conditions, these microbes could someday make self-sustaining space farming more
Scientists discovered rare flavoalkaloids in Cannabis leaves for the first time, along with dozens of other phenolic compounds that had never been reported in the plant. The findings suggest that Cannabis leaves, often discarded as waste, may contain a surprisingly rich source
Wildfires, floods and other extreme weather events are no longer the only ways climate change affects children around the world. Increasingly, it also affects their diets. Droughts reduce agricultural production, floods cut off roads and disrupt supply chains, and rising prices
Fall foliage from hundreds of miles up The post Let’s Do Some Leaf-Peeping From Space appeared first on Nautilus .
Before the parasite Toxoplasma gondii can invade a cell, it has to know it has reached the right place. New research from the Whitehead Institute reveals that the parasite doesn't simply recognize a ready-made doorway into the cell. Instead, it helps create the conditions for
Researchers have figured out a missing piece of the puzzle of how human cells detect invading viruses and mount an immune response within an hour.
Slaughterhouses are places most people never want to go, and might seem like unlikely places to search for rare or endangered species. In West Africa, however, they are among the last places one can find a critically endangered species, the Hooded Vulture, which historically
Removing a single amino acid can determine whether new proteins assemble into stable complexes within mitochondria. An enzyme carries out this precise trimming at the start of mitochondrial proteins. Without it, numerous protein complexes lose their stability, according to a
Antioxidants such as vitamins C and E protect cells by neutralizing free radicals, such as reactive oxygen species, before they can damage genetic material or cell membranes. Such damage can contribute to the development of neurodegenerative diseases. Antioxidants therefore
After taking a pill, the drugs it contains are distributed throughout the body, reaching the tissues and cells affected by disease and performing their intended function. However, they also enter healthy cells, where they often cause more harm than good.
Amide bonds are chemical linkages essential to biology, medicine and materials chemistry. Peptide bonds, a class of amide bonds, link amino acids to form proteins. Amide bonds are also important in medicines and polymers. Efficient synthesis of amide bonds remains a major focus
The shin bone’s connected to the… brain? The post How Gentle Tapping on the Shin Heals the Brain appeared first on Nautilus .
Quantum photonics could be a pivotal part of future quantum technology if the right materials can be created, a new review paper has found.
Could you imagine if pagers made a comeback? Sure, your smartphone would still be your notepad-flashlight-camera-personal assistant-MP3 player-wallet-social media browser. But imagine if pagers made it so easy to do that one important thing—pinging your friends and
Researchers often use antibodies to detect specific molecules or biological markers because they are remarkably precise at recognizing their targets. However, finding the faint signals of cancer in blood samples is a challenge even for the most reliable techniques.
Cities trying to cool sweltering streets often set broad tree canopy targets. But those targets can overlook the reality that not all shade is equally useful, and not every neighborhood has room for more trees.
