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.....»»
Mammoth rocket stage for Blue Origin New Glenn goes for sideways ride on Space Coast
A first stage of Blue Origin's massive New Glenn rocket became king of the road for a day making a trip from the factory to its launch complex on Wednesday......»»
Unveiling the reproductive secrets of red-swamp crayfish
Procambarus clarkii is a crustacean species native to American freshwater bodies. Brought to Japan in the 1920s as a feed for frogs, this crustacean has slowly taken over the Japanese freshwaters by predation and propagation. In fact, in 2023, the re.....»»
Astronomers think they finally know origin of enormous “cosmic smoke rings“
Massive stars burn out quickly. When they die, they expel their gas as outflowing winds. Enlarge / Odd radio circles are large enough to contain galaxies in their centers and reach hundreds of thousands of light years across. (c.....»»
Study on lamprey embryos sheds light on the evolutionary origin of vertebrate head
The origin of the vertebrate skull is a topic of much debate among evolutionary biologists. Some believe that the vertebrate head has developed as a result of modification of the segmental elements of the trunk, such as the vertebrae and somites. On.....»»
Space oddity: Uncovering the origin of the universe"s rare radio circles
It's not every day astronomers say, "What is that?" After all, most observed astronomical phenomena are known: stars, planets, black holes and galaxies. But in 2019 the newly completed ASKAP (Australian Square Kilometer Array Pathfinder) telescope pi.....»»
Astronomers observe three iron rings in a planet-forming disk
The origin of Earth and the solar system inspires scientists and the public alike. By studying the present state of our home planet and other objects in the solar system, researchers have developed a detailed picture of the conditions when they evolv.....»»
Fossil birds: Surfaces of cervical vertebrae show conspicuous tubercles that may have served as "internal bony armor"
An international research team has examined unusual skeletal structures of various European bird fossils from the Eocene. The bone surfaces of the approximately 40- to 50-million-year-old cervical vertebrae show conspicuous tubercles, whose origin as.....»»
Magnetic fields in the cosmos: Dark matter could help us discover their origin
The mini-halos of dark matter scattered throughout the cosmos could function as highly sensitive probes of primordial magnetic fields. This is what emerges from a theoretical study conducted by SISSA and published in Physical Review Letters......»»
HKDC1 protein found crucial to maintaining two mitochondria subcellular structures, mitochondria and lysosomes
Just as healthy organs are vital to our well-being, healthy organelles are vital to the proper functioning of the cell. These subcellular structures carry out specific jobs within the cell; for example, mitochondria power the cell, and lysosomes keep.....»»
Geometric origin of intrinsic dark counts in superconducting nanowire single-photon detectors
In a recent leap forward for quantum computing and optical technologies, researchers have uncovered an important aspect of photon detection. Superconducting nanowire single-photon detectors (SNSPDs), pivotal in quantum communication and advanced opti.....»»
Shedding light on the origin of the photovoltaic effect in organic–inorganic perovskites
A team led by RIKEN researchers has investigated how special crystals convert light into electricity. Their findings will help inform efforts to improve their efficiency, which could lead to the crystals being used in solar cells. The study is publis.....»»
French caviar farms look forward to EU label of origin
At a French caviar factory this week, a worker used tiny pliers to carefully line up black sturgeon fish eggs against a ruler......»»
Researchers study a million galaxies to find out how the universe began
A team of researchers has analyzed more than 1 million galaxies to explore the origin of the present-day cosmic structures, as reported in a recent study published in Physical Review D as an Editors' Suggestion......»»
Study: “Smarter” dogs think more like humans to overcome their biases
Both the shape of a dog's head and cognitive ability determine degree of spatial bias. Enlarge / Look at this very good boy taking a test to determine the origin of his spatial bias for a study on how dogs think. (credit: Eniko K.....»»
See how Blue Origin’s rocket did in first flight since 2022 explosion
Blue Origin has returned to flight 15 months after a midair explosion involving its suborbital New Shepard rocket grounded its operation......»»
Blue Origin’s suborbital rocket flies for first time in 15 months
An engine failure destroyed a New Shepard rocket on its previous flight. Enlarge / Blue Origin's New Shepard booster comes in for landing in West Texas at the conclusion of Tuesday's suborbital flight. (credit: Blue Origin).....»»
Blue Origin returns to space after yearlong hiatus
Blue Origin launched its first rocket in more than a year on Tuesday, reviving the US company's fortunes with a successful return to space following an uncrewed crash in 2022......»»
Jeff Bezos" Blue Origin sets new launch attempt for Tuesday
Blue Origin said it would try again on Tuesday to launch a rocket and return to space for the first time in more than a year, after scrubbing a mission for last-minute technical reasons......»»
Jeff Bezos"s Blue Origin heads back to space in critical launch
Blue Origin is set Monday to launch its New Shepard rocket for the first time since an uncrewed crash more than a year ago, a mission that is critical in reviving the fortunes of Jeff Bezos' space company......»»
Jeff Bezos"s Blue Origin headed back into space after accident
The American company Blue Origin plans to launch its rocket Big Shepard Monday for the first time since an accident more than a year ago, as the firm founded by billionaire Jeff Bezos heads back into space......»»