Data from ESA’s Gaia mission is re-writing the history of our galaxy, the Milky Way. What had traditionally been thought of as satellite galaxies to the Milky Way are now revealed to be mostly newcomers to our galactic environment. París, Nov 24, 2021.- A dwarf galaxy is a collection ofContinuar Leyendo
The tapered cone shell is popular among seashell collectors for its colorful patterns, but the smooth mottled shells are also home to the cone snail which is capable of spewing a potent insulin-like venom that can paralyze its prey. Researchers at the University of New Hampshire have found that variantsContinuar Leyendo
A team of researchers led by UC Riverside has demonstrated for the first time one way that a small molecule turns a single cell into something as large as a tree. For half a century, scientists have known that all plants depend on this molecule, auxin, to grow. Until now,Continuar Leyendo
Professor Norikazu Ichihashi and his colleagues at the University of Tokyo have successfully induced gene expression from a DNA, characteristic of all life, and evolution through continuous replication extracellularly using cell-free materials alone, such as nucleic acids and proteins for the first time. Tokio, Nov 20, 2021.- The ability toContinuar Leyendo
The ancient Maya had stone temples and palaces in the rainforest of Central America, along with dynastic records of royal leaders carved in stone, but they lacked a basic commodity essential to daily life: salt. The sources of salt are mainly along the coast, including salt flats on the YucatanContinuar Leyendo
París, Nov 19, 2021.- Solar Orbiter is returning to Earth for a flyby before starting its main science mission to explore the Sun and its connection to ‘space weather’. During the flyby Solar Orbiter must pass through the clouds of space debris that surround our planet, making this manoeuvre theContinuar Leyendo
People with Prader Willi syndrome, a genetic disorder, have an insatiable appetite. They never feel full, even after a hearty meal. The result can be life-threatening overeating and obesity. Philadelphia, Nov 18, 2021.- According to a new study, their constant hunger results in part to disordered signaling in the brain’sContinuar Leyendo
The world will be watching the milestone launch of NASA’s Double Asteroid Redirection Test, DART, spacecraft on Wednesday, 24 November, intended to alter one small part of the Solar System forever. París, Nov 18, 2021.- DART will collide with the small moon of an asteroid in order to shift itsContinuar Leyendo
A team led by investigators at Massachusetts General Hospital (MGH) has shown that people living with amyotrophic lateral sclerosis (ALS), or Lou Gehrig’s disease, who carry a mutation in the C9orf72 gene exhibit elevated levels of tau and phosphorylated tau protein in the motor cortex region of the brain. TheContinuar Leyendo
A large analysis of health records from 87 health care centers across the United States found that people taking a class of antidepressants called selective serotonin reuptake inhibitors (SSRIs), particularly fluoxetine, were significantly less likely to die of COVID-19 than a matched control group. San Francisco, Nov 15, 2021.- TheContinuar Leyendo
