In preparation for the commercial crewed modules that will arrive at the International Space Station soon, astronauts took a lengthy spacewalk to install some crucial equipment to the docking module. The extra-vehicular activity moved commander Drew Feustel to third on the list of all-time spacewalkers.
By jan mcharg, texas A&M university college of engineering
A new technology combining a laser beam and a particle beam for interstellar propulsion could pave the way for space exploration into the vast corners of our universe. This is the focus of PROCSIMA, a new research proposal by Dr. Chris Limbach and Dr. Ken Hara, assistant professors in the Department of Aerospace Engineering at Texas A&M University.
NASA has chosen the proposal “PROCSIMA: Diffractionless Beam Propulsion for Breakthrough Interstellar Missions,” for the 2018 NASA Innovative Advanced Concepts (NIAC) phase 1 study. PROCSIMA stands for Photon-paRticle Optically Coupled Soliton Interstellar Mission Accelerator, and is meant to evoke the idea that interstellar travel is not so far away.
Continue reading “Combining Laser And Particle Beams For Interstellar Travel” »
Investigators at Harvard Medical School have identified the key cellular mechanisms behind vascular aging and its effects on muscle health, and they have successfully reversed the process in animals.
The scientists used a chemical compound that’s an NAD+ booster called NMN which plays a critical role in repairing cellular DNA as well as maintaining cell vitality to test what would happen.
Could reversing the aging of blood vessels hold the key to restoring youthful vitality? If the old adage “you are as old as your arteries” reigns true then the answer is yes, at least in mice.
Continue reading “Harvard Rewinds the Biological Clock of Time” »
That growth in factory worker salaries has been a double-edged sword for China. On one hand, it has increased the purchasing power of Chinese which in turn has powered consumer-led economic growth, but on the other it has made China less competitive on wages and forced companies like Foxconn to introduce more automation.
With 1 million employees and half a dozen factories contributing 4 per cent of the country’s export value, Foxconn’s expansion symbolises China’s role as tech manufacturing powerhouse.
She retired from NASA on Friday after blazing a trail for countless female astronauts.
NASA astronaut Peggy Whitson, the 58-year-old from Iowa farm country who spent a record-breaking 665 days in space, retired from the space agency on Friday.
“I have hit my radiation limit,” Whitson told Business Insider during a recent interview. “So not going into space with NASA anymore.”
Black holes are notoriously messy eaters.
Using more than ten years of data, astronomers discovered traces of an unlucky star that got too close to a black hole. Because this event was partly hidden from us by dust, this discovery shows how we might find other cases of star-eating black holes.
Probiotics can do more than improve your gut health. They also may indirectly enhance your brain, too.
Research shows that the gut and brain are connected, a partnership called the gut-brain axis. The two are linked through biochemical signaling between the nervous system in the digestive tract, called the enteric nervous system, and the central nervous system, which includes the brain. The primary information connection between the brain and gut is the vagus nerve, the longest nerve in the body.
The gut has been called a “second brain” because it produces many of the same neurotransmitters as the brain does, like serotonin, dopamine, and gamma-aminobutyric acid, all of which play a key role in regulating mood. In fact, it is estimated that 90% of serotonin is made in the digestive tract.
Continue reading “Probiotics may help boost mood and cognitive function” »
