Menu

Blog

Page 160

Sep 27, 2024

NASA’s BioSentinel Studies Solar Radiation as Earth Watches Aurora

Posted by in categories: futurism, space

In May 2024, a geomagnetic storm hit Earth, sending auroras across the planet’s skies in a once-in-a-generation light display. These dazzling sights are possible because of the interaction of coronal mass ejections – explosions of plasma and magnetic field from the Sun – with Earth’s magnetic field, which protects us from the radiation the Sun spits out during turbulent storms.

But what might happen to humans beyond the safety of Earth’s protection? This question is essential as NASA plans to send humans to the Moon and on to Mars. During the May storm, the small spacecraft BioSentinel was collecting data to learn more about the impacts of radiation in deep space.

“We wanted to take advantage of the unique stage of the solar cycle we’re in – the solar maximum, when the Sun is at its most active – so that we can continue to monitor the space radiation environment,” said Sergio Santa Maria, principal investigator for BioSentinel’s spaceflight mission at NASA’s Ames Research Center in California’s Silicon Valley. “These data are relevant not just to the heliophysics community but also to understand the radiation environment for future crewed missions into deep space.”

Sep 27, 2024

Growing Yeast on the Moon to Study Radiation Risks to Human Explorers

Posted by in categories: biotech/medical, health

This is actually an addition to Genevieve’s post on CubeSat.


Humans are returning to the Moon for the first time in decades, and we intend to stay. NASA’s Artemis missions are preparing for a sustained human presence on and around the Moon, with the ultimate goal of sending humans to Mars. These deep-space destinations present health risks to astronauts that are qualitatively and quantitatively different from those associated with stays on the International Space Station (ISS). One of the most significant risks for astronauts venturing outside the protection of Earth’s magnetic field is ionizing radiation: Galactic Cosmic Rays (GCR), Solar Particle Events (SPE), and the “albedo” radiation produced by the interaction of space radiation with the lunar surface. Exposure to ionizing radiation can result in an increased risk of cancer, cardiovascular disease, and neurological impairment.

Sep 26, 2024

Google puts an end to AI and creates DeepMind: It is able to predict what will happen at the microscopic level

Posted by in categories: futurism, robotics/AI

Google discontinues Artificial Intelligence and establishes DeepMind: It is capable of making microscopic predictions about the future.

Sep 26, 2024

Scientists discover ‘pause button’ in human development

Posted by in categories: biotech/medical, genetics

In some mammals, the timing of the normally continuous embryonic development can be altered to improve the chances of survival for both the embryo and the mother. This mechanism to temporarily slow development, called embryonic diapause, often happens at the blastocyst stage, just before the embryo implants in the uterus.

During diapause, the embryo remains free-floating and pregnancy is extended. This can be maintained for weeks or months before development is resumed, when conditions are favorable. Although not all mammals use this reproductive strategy, the ability to pause development can be triggered experimentally. Whether human cells can respond to diapause triggers remained an open question.

Now, a study by the labs of Aydan Bulut-Karslıoğlu at the Max Planck Institute for Molecular Genetics in Berlin and Nicolas Rivron at the Institute of Molecular Biotechnology (IMBA) of the Austrian Academy of Sciences in Vienna, has identified that the that control embryonic diapause also seem to be actionable in human cells.

Sep 26, 2024

Medicinal tree successfully grown from 1,000-year-old seed found in cave

Posted by in category: futurism

An international team of botanists, agriculturists and historians has successfully grown a mature tree from an ancient seed found in a cave in Israel. In their paper, published in the journal Communications Biology, the group describes where the seed was found, the work that was done to discover its origins and what they have learned about its history as it has sprouted and grown into a mature tree.

Sep 26, 2024

Cells Across the Tree of Life Exchange ‘Text Messages’ Using RNA

Posted by in category: evolution

Long known as a messenger within cells, RNA is increasingly seen as life’s molecular communication system — even between organisms widely separated by evolution.

Sep 26, 2024

Hemp Extract: A New Weapon Against Mosquito Larvae

Posted by in category: biotech/medical

Can cannabidiol (CBD) be used to counter insecticide resistance, specifically for mosquitoes? This is what a recent study published in Insects hopes to address as a team of researchers investigated how hemp leaf extract could be used to kill mosquito larvae that is responsible for yellow fever. This study holds the potential to help researchers better understand how cannabis can be used to fight insecticide resistance and mitigate yellow fever around the world.

“Mosquitoes are one of the deadliest animals in the world, mainly because as adults they serve as vectors of disease,” said Erick Martinez Rodriguez, who is a graduate student in entomology at The Ohio State University and lead author of the study. “It’s very important to be able to control these pests at an early stage, when they are at the most vulnerable.”

This study builds off a 2018 study from The Ohio State University that a Madagascar-native plant successfully worked as a mosquito insecticide. For this recent study, the researchers created CBD from ground-up hemp extract and fed this CBD to mosquito larvae with two strains of yellow fever. In the end, the researchers found both strains were effectively killed by the CBD, along with this occurring with very small amounts of CBD.

Sep 26, 2024

Your Consciousness Can Connect With the Whole Universe, Groundbreaking New Research Suggests

Posted by in categories: neuroscience, quantum physics

This latest clue about the architecture of consciousness supports a Nobel-Prize winner’s theory about how quantum physics works in your brain.

Sep 26, 2024

Magnetically Guided Adeno‐Associated Virus Delivery for the Spatially Targeted Transduction of Retina in Eyes

Posted by in categories: biotech/medical, nanotechnology

A magnetic nanoparticle (MNP)-based platform is introduced for the spatially controlled viral transduction in retina explants and whole eyes. The platform uses magnetic fields to guide adeno-associat…

Sep 26, 2024

How AlphaChip transformed computer chip design

Posted by in category: robotics/AI

Our AI method has accelerated and optimized chip design, and its superhuman chip layouts are used in hardware around the world.

Page 160 of 11,923First157158159160161162163164Last