NASA is considering the possibility of putting the participants of future manned missions to Mars in hibernation. It is proposed to introduce the crew into a deep sleep that will last 180 days. This will allow to significantly reduce the cost of the flight of 350 million miles (560 million kilometers).
The proposal was suggested by Dr. Mark Schaffer of SpaceWorks Enterprises, an aerospace engineering company based in Atlanta, who gave a speech at the 65th International Astronautical Congress in Toronto, Canada.
According to Schaffer, keeping the astronauts in a state of reduced physiological activity, or so-called ‘therapeutic torpor’, could allow to greatly reduce the costs of the implementation of the Mars mission lasting from 90 to 180 days.
During space flight, the astronauts’ life functions would be maintained in a state of suspended animation by intravenous feeding. Body cooling would be carried out with the help of inhalation of a coolant gas. At the same time, electrical stimulation would keep the astronaut’s muscles in tone, so that after waking up they were not too much weakened.
The system, which introduces a person into a state of deep sleep, already exists. It was developed in the 1980s, and has been used in medicine for the treatment of patients with serious injuries since 2003. As a rule, it is not possible to maintain a person in this state for more than one week. However, it is planned to increase this time first to 90 and then to 180 days.
To put the astronauts into hibernation, the so-called RhinoChill System would lower the body temperature by approximately one degree per hour, introducing the coolant into the body through the nose. Cooling the body to a temperature of about 32 degrees Celsius would take six hours. As soon as the spaceship reaches the destination, the supply of coolant would stop and the astronauts would wake up.
Sleeping astronauts could be placed in small capsules, which would save space and reduce the need for provisions. As estimated by SpaceWorks, the project would reduce the size of the spacecraft by five times and the amount of cargo by three times.
It is also suggested to create a rotating habitat with artificial gravity, which could help minimize the loss of bone and muscle mass in astronauts.
There is also an alternative proposal, according to which one of the crew members could stay awake for two or three days before being put into hibernation for two weeks.
To confirm the viability of the proposal suggested by NASA experts, researchers from SpaceWorks will carry out further studies.
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Cliffhanger: Mountain Biker Saved From “Imminent Death” After Falling Into Canyon
A Southern California mountain biker is likely counting his blessings after he was rescued from what authorities describe as “imminent death”” after falling from the side of a cliff in the Angeles National Forest.
The mountain biker, described as an older man, fell into the canyon at Mt. Wilson on Thursday morning and was dangling hundreds of feet above the ground before his fellow bikers, and eventually a special team from the Los Angeles County Sheriff’s Department, rescued him.
For some time the man dangled by a thin cord around his ankle that was tied to his bicycle while hanging on for dear life “like a cat,” Capt. Tom Giandomenico of the LASD special enforcement bureau told the Los Angeles Times.
“He knew he was in such a precarious situation. He was just scared to even rotate his head to look at us. He just didn’t want to move a muscle,” LASD Deputy Richard Thomsen told CBSLA.
Additionally, when the helicopter team arrived it wasn’t just a matter of simply hoisting the man to safety, as the air generated by the helicopter’s rotor would have sent the man plummeting to “imminent death,” Giandomenico added.
“Because he was head-down on the rock face there, that dropped probably a good 40 feet before it hit some soft dirt and a boulder,” Sheriff’s Deputy Scott Helbring said. “And beyond that was hundreds of feet down to the bottom of the canyon.”
Instead, one of the members of the special enforcement team composed of former SWAT officers devised a plan to rappel down to the man and move him to a ledge below, from which the two could be airlifted to safety.
However, due to a lack of boulders or trees, there was nothing to tie a rope to – and thus no way to rappel down to anything.
So instead, the special enforcement team used the man’s brother and another friend to be their anchor, a plan that ultimately succeeded.
Giandomenico called the rescue “one of the more significant, courageous maneuvers I’ve seen.”
“Heroic, in my opinion,” he added.
Scientists Create First-Ever Embryos With Monkey and Human Cells
For the first time, scientists have created embryos in a lab that contain the cells of both humans and monkeys.
Scientists hope that by creating chimeric embryos – embryos containing cells from two distinct species – they might be able to create organs for people who desperately need transplants.
Over 100,000 people in the United States lone are currently on a waiting list for organ transplants crucial to saving their lives, but the supply of donor organs has dropped significantly since the pandemic began unfolding.
Researchers have attempted to inject human stem cells into the embryos of pigs and sheep in recent years in hopes of growing organs for transplants, but this hasn’t yielded positive results. Scientists are hoping that by turning to macaque monkeys, which share a greater genetic similarity to humans, they may have more success.
In a study published Thursday in the journal Cell, researchers in the U.S. and China injected 25 pluripotent stem cells from humans into embryos from macaque monkeys.
After one day, the researchers detected human cells beginning to grow in 132 of the embryos. They embryos ultimately survived for 19 days.
However, bioethicists have raised concerns about the potential for abusing medical regulations that currently govern the treatment of animal and human subjects, as well as the possibility that a rogue scientists might potentially spike living creatures with human cells.
“My first question is: Why?” Kirstin Matthews, a science and technology fellow at Rice University’s Baker Institute, told NPR. “I think the public is going to be concerned, and I am as well, that we’re just kind of pushing forward with science without having a proper conversation about what we should or should not do.”
Researchers insist that the study serves purely humanitarian goals that could save countless lives in the future.
“This work is an important step that provides very compelling evidence that someday when we understand fully what the process is we could make them develop into a heart or a kidney or lungs,” said University of Michigan professor Jeffrey Platt, who was not involved in the study.
US Cop Shares Tiktok Video Showing How It’s Impossible To Confuse Taser for a Gun
In recent years, policing in the United States has received a much-needed reexamination, with many demanding changes to law enforcement or even its defunding and dismantling in light of high-profile killings committed by police officers.
However, one U.S. police officer has shared a video where he points out that in at least some fatal police encounters, simple common sense can save lives.
In a video shared to TikTok by user @brianb1504, the officer points out the differences between a pistol and a Taser. The video is a seeming response to the recent slaying of 20-year-old Daunte Wright by Minnesota police officer Kim Potter.
In the video, Officer Brian can be seen loading his belt with the firearm and less-lethal weapon, noting that his pistol is “dominant” while the bright yellow plastic taser is “not so dominant.”
“Huge weight difference, guys – I don’t understand how we can mistake a taser for a gun or a gun for a taser,” Brian continues.
“If you’re in the heat of the moment and you do something like that, you shouldn’t be doing this job,” he adds.
Continuing, Brian notes that he is sick and tired of the lousy state of police-community relations resulting from the actions of killer cops.
“I’m not going to put my life on the line to try and fix your stupidity and deal with restoring the peace with my public that I serve just because of your stupid actions,” Brian said.
“It makes no sense. 99 percent of our job is communication. You don’t have to be quick to pull out a gun or a taser on somebody and think everybody’s a threat,” he said. “Not everybody’s a threat. Try talking to them, get to know these people.”
While the account seems to have disappeared, it received upwards of 6 million views along with over 1.5 million likes and thousands of comments across the platform.
The video comes as the United States braces itself for more protests following the police killing of Daunte Wright by Kim Potter, a 26-year veteran of the Brooklyn Center Police Department. Police Chief Tim Gannon claims that Potter was trying to tase Wright but he died as a result of an “accidental discharge.”
Potter has since been charged with second-degree manslaughter. If convicted, she could face up to 10 years behind bars and/or a $20,000 fine.
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