SpaceX launched its own version of the “fastest hunk of junk in the galaxy,” the Falcon 9, on Star Wars Day (aka “May the Fourth”).
A team of international scientists, led by the Galician Institute of High Energy Physics (IGFAE) and the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav), has proposed a simple and novel method to bring the accuracy of the Hubble constant measurements down to 2% using a single observation of a pair of merging neutron stars.
The universe is in continuous expansion. Because of this, distant objects such as galaxies are moving away from us. In fact, the further away they are, the faster they move. Scientists describe this expansion through a famous number known as the Hubble constant, which tells us how fast objects in the universe recede from us depending on their distance to us. By measuring the Hubble constant in a precise way, we can also determine some of the most fundamental properties of the universe, including its age.
For decades, scientists have measured Hubble’s constant with increasing accuracy, collecting electromagnetic signals emitted throughout the universe but arriving at a challenging result: the two current best measurements give inconsistent results. Since 2015, scientists have tried to tackle this challenge with the science of gravitational waves, ripples in the fabric of space-time that travel at the speed of light. Gravitational waves are generated in the most violent cosmic events and provide a new channel of information about the universe. They’re emitted during the collision of two neutron stars —the dense cores of collapsed stars —and can help scientists dig deeper into the Hubble constant mystery.
Experts anticipate the global shortage of semiconductor to last another two years. This is what it could mean for you.
A mental health startup built its business on easy-to-use technology. Patients joined in droves. Then came a catastrophic data breach.
Excellent! Technology is available to make real change. Support efforts to clean the seas and use renewable energy sources.
Tired of hitting these floating objects during his races and seeing heavenly places turn into landfills, a French ocean adventurer Yvan Bourgnon decided to fight against this global scourge. He and his team have designed Manta, a giant, plastic-eating catamaran powered by renewable energy. The sea vessel literally scoops up plastic garbage and converts it into fuel to help power the boat.
Continue reading “Meet Manta, a sea-cleaning sailboat that feeds on plastic waste” »
LX1001, a gene therapy for Alzheimer’s disease being developed by Lexeo Therapeutics, has been granted fast track designation by the U.S. Food and Drug Administration (FDA).
The therapy is designed to deliver a version of the APOE gene, called APOE2, to cells in the central nervous system (the brain and spinal cord) using an engineered viral vector.
Every person inherits two copies of the APOE gene, one from each biological parent. There are three versions of the APOE gene, called alleles — APOE2, APOE3, and APOE4 (often abbreviated to E2, E3, and E4). The specific combination of alleles a person has affects their Alzheimer’s risk. Broadly, the E2 allele is associated with lower Alzheimer’s risk, whereas the E4 allele is linked to increased disease risk. As such, LX1001 is designed to deliver the protective allele (APOE2).
Unlocking The Potential Of Salt and Drought Tolerant Crops And Seawater Agriculture — Professor Dr. Mark Tester — Center for Desert Agriculture, King Abdullah University of Science and Technology; Co-founder & CSO, Red Sea Farms.
Professor Dr. Mark Tester is Professor, Plant Science, and Associate Director, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, of King Abdullah University of Science and Technology (KAUST) in Saudi Arabia.
As founder of Longevity Vision Fund, I am often asked about the most promising life extension breakthroughs, from early cancer diagnostics to human avatars and everything in between. The simple answer is that there are many — but that’s probably not the kind of answer you were looking for!
Instead, let’s look at the latest longevity breakthroughs working on each of the five major levels of biological organization (cell, tissue, organ, organ system and organism) and what they each aim to accomplish.
In a study at The University of Alabama, aging fruit flies died faster than younger flies from a viral infection because of different genetic responses, lowering the older flies’ tolerance to the infection.
The findings published recently in G3: Genes, Genomes, Genetics add to the understanding of innate immunity, the first line of defense against infections, which is not fully understood in humans, and prove the fruit fly, Drosophila, is a good candidate for aging immunity studies that could lead to advancements in treating viral infections in older humans.
“We are living in times where there is a substantial increase in aging populations, and we know there is a decline of immune function in humans as we age,” said Dr. Stanislava Chtarbanova, UA assistant professor of biological sciences whose lab led the study. “This is the first study to use the fly for investigating age-dependent, anti-viral responses. Our lab can leverage this genetic model to study the molecular mechanisms underlying aging immunity.”
Circa 2015
Drinking a few cups of coffee a day may help people avoid clogged arteries — a known risk factor for heart disease — South Korean researchers believe.
