List of All Articles with Tag 'pac'

Long space missions are damaging astronauts’ brains, scientists have said. Experts now suggest that those who are spending a long time in space should take three years to allow their brains to recover from the changes experienced during their journeys. Those are the findings of a new study looking at how brain’s react to leaving Earth’s gravity. It comes ahead of what is expected to be a new era of long journeys around space, including the first missions to Mars. Researchers looked at brain scans of 30 astronauts, taken before and after they travelled to space. They found that journeys over six months left the brain’s ventricles significantly expanded – and they could take up to three years to recover. The ventricles are cavities in the brain that are filled with a fluid that protects and nourishes the brain, as well as removing waste. Usually, that fluid is helpfully distributed around the body, but the lack of gravity in space can mean that the fluid is pushed upward and shoves the brain higher in the skull. “We found that the more time people spent in space, the larger their ventricles became,” said Rachael Seidler, a professor of applied physiology and kinesiology at the University of Florida and an author of the study. “Many astronauts travel to space more than one time, and our study shows it takes about three years between flights for the ventricles to fully recover.” Read More Scientists demonstrate wireless power transmission from space for first time Japan to launch satellite made of wood in 2024 US tells China: ‘We’ll fight in outer space if we have to’

By Will Dunham WASHINGTON Space can be an unfriendly place for the human body, with microgravity conditions and

More than 25 years after he was gunned down in Las Vegas, Tupac Shakur received a star on the Hollywood Walk of Fame.

The long-term consequences for agriculture will be severe in one of Ukraine's most fertile areas.

The Packers are giddy with excitement about the dynamic pairing of quarterback Jordan Love and wideout Romeo Doubs in 2023.O Romeo, Romeo, wherefore art thou Romeo? If the Green Bay Packers' 2023 season were a Shakespearean play, it may take the form of "Romeo and Juliet" but rena...

Officials say there could be a catastrophic impact on agriculture, worsening global food shortages.

The mystery behind the brightest explosion ever seen has finally been solved. In October last year, the Earth was hit by a blast that came to be known as the Brightest of All Time. It was recorded by telescopes across the world, and scientists have been scrambling to explain it ever since. Now researchers believe they may understand why that gamma ray burst was quite so intense. It was pointed directly at Earth and pulled along a large amount of stellar material. That’s according to a new paper published in the journal Science Advances. While scientists have suggested before that the brightness of the blast was the result of its angle, but some mystery remained: the edges of the jet could not be seen. “The slow fade of the afterglow is not characteristic of a narrow jet of gas, and knowing this made us suspect there was an additional reason for the intensity of the explosion, and our mathematical models have borne this out,” said Hendrik Van Earthen from the University of Bath. “Our work clearly shows that the GRB had a unique structure, with observations gradually revealing a narrow jet embedded within a wider gas outflow where an isolated jet would normally be expected.” The work is described in a new paper, ‘A structured jet explains the extreme GRB 221009’, published in the journal Science Advances. Read More Scientists demonstrate wireless power transmission from space for first time Whistleblower alleges UFO crashes – and a cover-up to keep them secret Watch: Strawberry moon lights up skies over UK

By Joey Roulette WASHINGTON NASA's plans to turn over its flagship rocket to contractors Boeing and Northrop Grumman

NBA Draft rumors: Damian Lillard could demand trade from BlazersThe Portland Trail Blazers own the No. 3 pick in the upcoming NBA Draft. That doesn't really align with the team's immediate goal of building a championship contender around Damian Lillard, something the front office has man...

The war in Ukraine has brought an enormous human toll: Thousands of civilians have been killed, millions have been forced to flee overseas, it has destroyed homes, schools and hospitals. But beyond the immediate, visceral impacts, the conflict is also causing a climate disaster at a time when the world is already struggling to meet climate goals, according to a new report.

Japan's Self-Defence Forces are struggling to recruit from a population that is shrinking and ageing.

Japan moves to reform its sex assault laws, finally recognising consent.