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NASA astronauts set for spacewalk after delay due to risk posed by orbital debris

Two NASA astronauts ventured out on a spacewalk on Thursday to replace a faulty antenna on the International Space Station, facing what NASA called a minimally heightened risk posed by orbital debris left from a Russian missile test weeks ago.

The planned 6-and-1/2-hour spacewalk began at 7:10 a.m. Eastern time (1210 GMT) as astronauts Thomas Marshburn and Kayla Barron exited an airlock of the orbiting research lab some 250 miles (400 km) above Earth to begin their work.

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“Sun’s coming up and you will be over South America in a couple of minutes,” mission control told the astronauts as they exited the airlock.

The start of the “extra-vehicular activity” (EVA) followed a 48-hour delay prompted by an orbital debris alert – believed to be the first such postponement in more than two decades of space station history – which NASA later deemed inconsequential.

The origin of the debris in question was left unclear by NASA, though a spokesperson said there was no indication it came from fragments of the defunct satellite that Russia blew to pieces with a missile test earlier this month.

Thursday’s outing is the fifth spacewalk for Marshburn, 61, a medical doctor and former flight surgeon with two previous trips to orbit, and a first for Barron, 34, a US Navy submarine officer and nuclear engineer on her debut spaceflight for NASA.

Their objective is to remove a defective S-band radio communications antenna assembly, now more than 20 years old, and replace it with a spare stowed outside the space station.

The space station is equipped with other antennae that can perform the same functions, but installing a replacement system ensures an ideal level of communications redundancy, NASA said.

Marshburn will work with Barron while positioned at the end of a robotic arm maneuvered from inside by German astronaut Matthias Maurer of the European Space Agency, with help from NASA crewmate Raja Chari.

The four arrived at the space station Nov. 11 in a SpaceX Crew Dragon capsule launched from the Kennedy Space Center in Florida, joining two Russian cosmonauts and a NASA astronaut, Mark Vande Hei, already aboard the orbiting outpost.

Four days later, an anti-satellite missile test conducted without warning by Russia generated a debris field in low-Earth orbit, forcing the seven ISS crew members to take shelter in their docked spaceships to allow for a quick getaway until the immediate danger passed, NASA said.

The residual cloud of debris from the blasted satellite has dispersed since then, according to Dana Weigel, NASA deputy manager of the ISS program.

NASA has calculated that remaining fragments continue to pose a “slightly elevated” background risk to the space station as a whole, and a 7% higher risk of puncturing spacewalkers’ suits, as compared to before Russia’s missile test, Weigel told reporters on Monday.

NASA determined those risk levels fall within an acceptable range and moved ahead with preparations for a spacewalk on Tuesday as originally planned, only for mission control to delay the EVA mission hours before it was to start.

The operation was postponed after NASA received notice from US military space trackers warning of a newly detected debris-collision threat. NASA concluded later there was no risk to spacewalkers or the station after all, and the antenna replacement was rescheduled for Thursday morning.

Thursday’s exercise marks the 245th spacewalk in support of assembly and upkeep of the space station, and the first on record delayed due to a debris alert, NASA spokesperson Gary Jordan said.

Read more:

Russia rejects accusations of endangering International Space Station astronauts

Space debris ‘event’ forces ISS crew to take evasive action

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Arabian Saluki Beauty Contest at ADIHEX 2024: A celebration of ancestral elegance

The Abu Dhabi International Hunting and Equestrian Exhibition (ADIHEX) announce the return of the prestigious Arabian Saluki Beauty Contest, a unique initiative aimed at highlighting the significance of purebred hunting dogs and fostering a connection between the new generation and their rich ancestral heritage.
Under the esteemed patronage of H.H. Sheikh Hamdan bin Zayed Al Nahyan, Ruler’s Representative in Al Dhafra Region and Chairman of the Emirates Falconers’ Club (EFC), this iconic event is scheduled from 31st August to 8th September, 2024, at ADNEC Centre Abu Dhabi, celebrating the blending of deep Emirati cultural traditions with cutting-edge innovation and technology across 11 diverse sectors.
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The Arabian Saluki Centre was established in Abu Dhabi in 2001 alongside the Emirates Falconers’ Club, marking the first facility of its kind in the Arabian Gulf region and the Middle East, to revive the tradition of desert hunting using Saluki dogs, a cherished aspect of desert heritage.
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The Arabian Saluki Beauty Contest, held during ADIHEX, is more than a beauty pageant. It celebrates the essence of the Saluki by focusing on the dog’s personality, skills, reflexes, and sensory response. Unlike typical dog competitions, this contest evaluates the Saluki’s breed characteristics, behaviour, overall appearance, structure, hunting skills, and psychological traits. Judging criteria include the dog’s gait, head, eyes, mouth, ears, coat, colour, and general impression.
The Arabian Saluki Beauty Contest is an integral part of ADIHEX’s mission to preserve and promote the cultural heritage of the UAE and the wider Arab world. This contest not only showcases the beauty and abilities of the Saluki but also plays a vital role in raising awareness about the importance of preserving traditional hunting practices and the Saluki’s role in them.
This year’s competition will feature four categories: ‘Smooth (Hoss) Males,’ ‘Feathery (Aryash) Males,’ ‘Smooth (Hoss) Females,’ and ‘Feathery (Aryash) Females.’ The event is scheduled to take place during ADIHEX 2024, and, per the rules, participants must ensure their dogs are healthy, microchipped, and vaccinated.
The Saluki’s enduring legacy is celebrated through this competition, which draws participants and spectators from across the region and beyond. It provides a platform for Saluki enthusiasts to connect, share their passion, and celebrate a breed that has remained virtually unchanged for millennia, reflecting the diverse hunting landscapes and traditions of the Middle East.
Aside from the alluring Arabian Saluki Beauty Contest, as the largest edition of ADIHEX to date, the 21st edition will showcase thousands of brands across 11 diverse sectors, offering a dynamic platform for new business opportunities and captivating audiences of all ages. This exhibition celebrates the thrill of an adventurous outdoor lifestyle, allowing visitors to explore falconry, hunting, equestrian sports, veterinary products, fishing and marine sports, environmental preservation, cultural heritage, arts and crafts, and the latest in technology and innovation across all the represented sectors.

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Sharjah Ruler directs allocation of beach for women in Khorfakkan’s Al Luluyah area

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