The origin of reproductive organs
Early in human development, during the first trimester of gestation, a fetus may have XX or XY chromosomes that indicate its sex. Yet at this stage a mass of cells known as the bipotential gonad that ultimately develops into either ovaries or testes.....»»
Study challenges classical view of the Antarctic Circumpolar Current origin and warns of its vulnerability
The Circumpolar Current works as a regulator of the planet's climate. Its origins were thought to have caused the formation of the permanent ice in Antarctica about 34 million years ago. Now, a study led by the University of Barcelona, the Instituto.....»»
Newly identified protein helps flowers develop properly
Flowers rely on a newly identified protein to develop properly with all of their organs, according to the research team who made the discovery. The team, led by Penn State biologists, identified the protein in the model plant species Arabidopsis and.....»»
AI helps reveal the ancient origin story of floral colors
New research led by Monash University experts used computer simulations to reveal the ancient link between bees and the evolution of colors in flowers. The research, published in Proceedings of the Royal Society B, simulated the landscape of the firs.....»»
A new kink in proton spectrum to enhance our knowledge of cosmic ray origin
The GRAPES-3 experiment in Ooty, India, operated by the Tata Institute of Fundamental Research has discovered a new feature in the cosmic-ray proton spectrum at about 166 tera-electron-volt (TeV) energy while measuring the spectrum spanning from 50 T.....»»
Study reveals genes regulating lotus flowering
Lotus is one of the top 10 traditional flowers in China with high ornamental value. Flowering behavior in lotus marks the transition from vegetative to reproductive growth, and flowering time is also an important determinant of its market value......»»
Watch Blue Origin hotfire its next-gen BE-4 rocket engine
Blue Origin has shared footage of a test fire of its powerful BE-4 engine in ongoing tests that follow the engine's recent first flight on a ULA rocket......»»
LSH genes associated with defining the shapes of stems, flowers and leaves required for N-fixing root nodules
Cambridge scientists have identified two crucial genetic factors needed to produce specialized root organs that can accommodate nitrogen-fixing bacteria in legumes such as peas and beans......»»
Plant receptors that control immunity and development share a common origin, study finds
Plants are continuously evolving new immune receptors to ever-changing pathogens. Researchers at the RIKEN Center for Sustainable Resource Science (CSRS) have traced the origin and evolutionary trajectory of plant immune receptors. Their discovery wi.....»»
Researchers uncover source rocks of the first real continents
Geoscientists have uncovered a missing link in the enigmatic story of how the continents developed—a revised origin story that doesn't require the start of plate tectonics or any external factor to explain their formation. Instead, the findings pub.....»»
Decay of sunspot pair elucidates properties of nearby moving magnetic features
Scientists studying sunspots have found important clues about magnetic features in their decay that will help understand the evolution and real origin of these mysterious magnetic phenomena. The findings are published in The Astrophysical Journal......»»
Researchers discover molecular mechanism that influences the symmetrical shape of the style
Humans are attracted to symmetry: in our buildings, our gardens, in our potential partners. For plants, the symmetrical shapes of organs are a matter of survival because the form directly impacts the function......»»
3.5 billion-year-old hydrothermal vent sediments offers clues to life"s origin
Researchers from The University of Western Australia examined 3.5 billion-year-old hydrothermal vent sediments and discovered clues about the origin and early evolution of life......»»
Rocket Report: Iran reaches orbit; Chinese firm achieves impressive landing test
"Our investors’ continued support is a recognition of our 18 months of hard work." Enlarge / First and second stages of Blue Origin's "New Glenn" test vehicle. (credit: Blue Origin) Welcome to Edition 6.28 of the Rocke.....»»
Researchers elucidate the variability and adaptability of internode elongation in barley
Plant architecture is the outcome of several successive developmental processes that can be classified into two events: Organogenesis and extension. Organogenesis stems from the meristems (stem cells) that give rise to different types of organs (e.g......»»
Scientists identify potential new method for diagnosing male infertility
Researchers have discovered a new phenomenon where sperm from mice can induce non-reproductive cells from hamsters to fuse and form a syncytia—a cell with multiple nuclei......»»
A Gene-Edited Pig Liver Was Attached to a Person—and Worked for 3 Days
Researchers want to use genetically engineered pig organs to help support people with liver failure......»»
Study reveals genes that "don"t play well together" in swordtail fish hybrids drive speciation
Stanford researchers have gained new insights into how the rise of reproductive barriers between organisms creates new species and drives the incredible diversification of life on Earth......»»
Cryo-microscopy reveals nano-sized copy machine implicated in origin of life
How the intricate molecular machinery of life arose from simple beginnings has been a long-standing question. Several lines of evidence point towards a primordial "RNA world," where an "RNA copy machine" (a so-called replicase) started making copies.....»»
Since Roe was overturned, fewer Michigan adults want to have children
When the U.S. Supreme Court overturned Roe v. Wade in 2022, it created uncertainty for Americans' access to abortion and other forms of reproductive health care. This uncertainty may have led to an increase in the number of Michigan adults who said t.....»»
War in Europe is more than 5,000 years old, researchers find
Conflict has existed throughout human history, and it has often been violent. Attacks, assassinations, raids, ambushes, and vendettas feature in archaeological records almost as far back as the origin of humankind itself. But not war......»»