Day: September 12, 2024

Tech billionaire pulls off first private spacewalk high above Earth

CAPE CANAVERAL, Florida — A tech billionaire performed the first private spacewalk hundreds of kilometers above Earth on Thursday, a high-risk endeavor reserved for professional astronauts — until now.

Tech entrepreneur Jared Isaacman teamed up with SpaceX to test the company’s brand new spacesuits on his chartered flight. The daring spacewalk also saw SpaceX engineer Sarah Gillis going out once Isaacman was safely back inside.

This spacewalk was simple and quick — less than two hours — compared with the drawn-out affairs conducted by NASA. Astronauts at the International Space Station often need to move across the sprawling complex for repairs, always traveling in pairs and lugging gear. Station spacewalks can last seven to eight hours.

Isaacman emerged first from the hatch, joining a small elite group of spacewalkers who until now had included only professional astronauts from a dozen countries.

“Back at home, we all have a lot of work to do. But from here, it sure looks like a perfect world,” Isaacman said as the capsule soared above the South Pacific. Cameras on board caught his silhouette, waist high at the hatch, with the blue Earth beneath.

The commercial spacewalk was the main focus of the five-day flight financed by Isaacman and Elon Musk’s company, and the culmination of years of development geared toward settling Mars and other planets.

All four on board donned the new spacewalking suits to protect themselves from the harsh vacuum. They launched on Tuesday from Florida, rocketing farther from Earth than anyone since NASA’s moonwalkers. The orbit was reduced by half — 740 kilometers — for the spacewalk.

This first spacewalking test involved more stretching than walking. Isaacman kept a hand or foot attached to it the whole time as he flexed his arms and legs to see how the new spacesuit held up. The hatch sported a walker-like structure for extra support.

After about 15 minutes outside, Isaacman was replaced by SpaceX engineer Sarah Gillis to go through the same motions. Gillis bobbed up and down in weightlessness, no higher than her knees out of the capsule, as she twisted her arms and sent reports back to Mission Control.

Each had 3.6-meter tethers but did not unfurl them or dangle at the end unlike what happens at the space station, where astronauts routinely float out at a much lower orbit.

More and more wealthy passengers are plunking down huge sums for rides aboard private rockets to experience a few minutes of weightlessness. Other have spent tens of millions to stay in space for days or even weeks. Space experts and risk analysts say it’s inevitable that some will seek the thrill of spacewalking, deemed one of the most dangerous parts of spaceflight after launch and reentry but also the most soul-stirring.

This operation was planned down to the minute with little room for error. Trying out new spacesuits from a spacecraft new to spacewalking added to the risk. So did the fact that the entire capsule was exposed to the vacuum of space.

There were a few glitches. Isaacman had to manually pull the hatch open instead of pushing a button on board. Before heading out, Gillis reported seeing bulges in the hatch seal.

Scott “Kidd” Poteet, a former Air Force Thunderbird pilot, and SpaceX engineer Anna Menon stayed strapped to their seats to monitor from inside. All four underwent intensive training before the trip.

Isaacman, 41, CEO and founder of the Shift4 credit card-processing company, has declined to disclose how much he invested in the flight. It was the first of three flights in a program he’s dubbed Polaris; this one was called Polaris Dawn. For SpaceX’s inaugural private flight in 2021, he took up contest winners and a cancer survivor.

Until Thursday, only 263 people had conducted a spacewalk, representing 12 countries. The Soviet Union’s Alexei Leonov kicked it off in 1965, followed a few months later by NASA’s Ed White.

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Botswana, US firm partner to conduct border pathogen monitoring

Gaborone, Botswana — Botswana and an American biotech firm, Ginkgo Bioworks, have partnered to conduct pathogen surveillance at the country’s entry points. Health officials say the proactive move is meant to safeguard public health as the world faces emerging disease threats.

Botswana introduced mpox screening last month for travelers at its entry points.

In a statement Wednesday, Ministry of Health spokesperson Christopher Nyanga said a pathogen-monitoring program is critical to detecting similar emerging health threats.

Dr. Mbatshi Mazwiduma, a public health expert, said the pathogen-surveillance program will complement existing strategies to prevent disease threats.

“The initiative by the Ministry of Health is a very welcome development in the sense that it is at least demonstrating that they are both embracing traditional methods of surveillance and disease detection plus at the same time, they are looking at other innovative ways of disease detection,” he said.

Through the collaboration, Boston-based Gingko Bioworks will work with the Ministry of Health to collect and monitor travelers’ samples. Nasal swabs will be used to collect the samples.

Nyanga said testing will be done on a voluntary, anonymous basis.

“Although participation in this initiative is entirely voluntary, travelers are encouraged to participate because this early detection of pathogens is meant to safeguard the health of all citizens, visitors and residents of this country,” he said. “The samples collected will be kept anonymous. The data collected from the samples will be vital in strengthening the country’s robust health system and response to public health threats and emergencies.”

But Mazwiduma said voluntary participation in the pathogen-monitoring program could hinder effective disease detection.

“Perhaps if non-invasive, non-intrusive, the technique should be compulsory because it ensures that the number of people who comply to sample acquisition is increased and, therefore, you can actually rapidly achieve suitable sample sizes for you to be able to ensure that you do not miss any patients, but also more importantly that it allows you to improve your validation of these particular technologies,” Mazwiduma said.

Botswana and Gingko Bioworks previously collaborated in a 2022 pathogen-monitoring program to detect new and emerging COVID-19 variants.

During the same year, Botswana was credited with the discovery of COVID-19 variant omicron.

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