Home movies from a Russian cosmonaut on the International Space Station have revealed the first glimpses inside the orbiting laboratory’s newest expansion: a science lab called Nauka.
Nauka, also known as the Multipurpose Laboratory Module, launched to the station in late July after years of delay and a dramatic arrival on July 29. After docking itself with the orbiting lab, Nauka’s thrusters fired unexpectedly, spinning the space station around one and a half times, but crewmembers did not report any problems when they finally opened the module hatch for the first time.
The first video tour of inside Nauka came from Russian cosmonaut Oleg Novitskiy, who flew through the newly opened module in orbit and took handheld video shots of Earth. He uploaded two videos of his work — one briefly touring through the module and another where he flies through the lab to gaze out the window — on Monday (Aug. 23). Novitskiy also shared photos on Twitter of the module’s interior and of Earth, as seen through Nauka’s window.
Then came a more detailed tour of Nauka from the European Space Agency’s Thomas Pesquet. “We are glad to have experienced this module’s arrival,” Pesquet said in French, subtitled in English.
“We had an adventurous start following its docking,” Pesquet said, noting it was because the module falsely thought it was flying autonomously after docking. “We quickly corrected the situation. That’s space for you. Sometimes it doesn’t work exactly like you’d hope.”
The first photos of our beautiful planet from the new window of the new Russian #Nauka module.Very beautiful! pic.twitter.com/JDQOFJs9MOAugust 22, 2021
While being filmed by another crew member, Pesquet guided the video camera to the “Russian side” of the space station, which is through a narrow passageway surrounded by cargo. The duo floated over tanks, cooling pipes and stowed materials to make it to the far side of the station, where Nauka is docked at an Earth-facing port, the old home of the station’s Pirs docking module that was deliberately deorbited last month after 20 years in service.
Pesquet moved “down” (in the view of the camera) beside the newly opened Nauka hatch, explaining that in space, it smells a little smoky after you get the door open for the first time. “To me it smells kind of like sunscreen. It’s the thermal cycle, being exposed to the sun’s heat, [which] creates this kind of special smell.”
Noting the crowded space around him, Pesquet explained the module was filled with equipment upon arrival, which the crew hasn’t yet had time to empty. He noted the new toilet Nauka brought — the third for the orbiting complex, which will be useful for bigger crews arriving on U.S. commercial crew vehicles.
Other features of Nauka include equipment racks, a station for the new European Robotic Arm (the station is still under construction, Pesquet said), and a small crew cabin called Kayuta (temporarily being used for storage).
The docking area includes the new window – “it’s rather big, actually,” Pesquet said while floating beside it. He added it will be another useful tool for observing Earth. Spaceflyers also typically use the Cupola, an Italian-built panoramic window installed on the space station with the Tranquility module in 2010. Cupola is also used for berthing operations using the station’s Canadarm2.
Follow Elizabeth Howell on Twitter @howellspace. Follow us on Twitter @Spacedotcom and on Facebook.
A 900-year-old cosmic mystery has been solved by astronomers – CTV News
The mystery behind the origins of a supernova first spotted by 12th-century Chinese and Japanese astronomers has been solved, according to an international team of 21st-century astronomers.
New research, published Wednesday in The Astrophysical Journal, has linked astronomical reports from more than 800 years ago with a faint, fast-expanding nebula surrounding Parker’s Star, one of the hottest stars in the Milky Way galaxy.
The nebula, dubbed Pa30, fits the profile, location and age of the supernova, which was originally documented in 1181 AD.
“The historical reports place the guest star between two Chinese constellations, Chuanshe and Huagai,” Albert Zijlstra, astrophysics professor at the University of Manchester, said in a news release. “Parker’s Star fits the position well. That means both the age and location fit with the events of 1181.”
The first astronomers to lay eyes on the supernova, referred to as SN 1181, described it being as bright as the planet Saturn and remaining visible for six months, the authors of the study said.
Previous research has suggested Parker’s Star and the Pa30 nebula may be the result of the merging of two white dwarf stars. Such events are thought to lead to a rare and faint type of supernova called a “Type Iax” supernova.
“Only around 10 per cent of supernovae are of this type and they are not well understood. The fact that SN 1181 was faint but faded very slowly fits this type,” Zijlstra said. “It is the only such event where we can study both the remnant nebula and the merged star, and also have a description of the explosion itself.”
The key to unlocking the mystery of this historical supernova was the discovery that the Pa30 nebula is expanding at a velocity of more than 1,100 kilometres per second. From this, researchers were able to calculate the nebula’s age to be around 1,000 years old, which coincides with the events of 1181 AD.
“Combining all this information such as the age, location, event brightness and historically recorded 185-day duration, indicates that Parker’s Star and Pa30 are the counterparts of SN 1181,” Zijlstra said. “This is the only Type Iax supernova where detailed studies of the remnant star and nebula are possible.”
There have been five supernovae in the Milky Way in past millennium, and up until now, SN 1181 was the only one whose origins remained unknown.
“It is nice to be able to solve both a historical and an astronomical mystery,” Zijlstra said.
The team of astronomers who made the discovery hail from Hong Kong, the U.K., Spain, Hungary and France.
SpaceX launches amateur crew on private Earth-circling trip – Al Jazeera English
SpaceX’s first private flight has been launched into orbit with two contest winners, a healthcare worker and their rich sponsor on board, the most ambitious leap yet in space tourism.
The launch on Wednesday night was the first time a spacecraft circled Earth with an all-amateur crew and no professional astronauts.
“Punch it, SpaceX!” the flight’s billionaire leader, Jared Isaacman, urged moments before liftoff.
The Dragon capsule’s two men and two women are looking to spend three days circling the planet from an unusually high orbit – 160km (100 miles) higher than the International Space Station – before splashing down off the Florida coast this weekend.
It is SpaceX founder Elon Musk’s first entry in the competition for space tourism dollars.
Isaacman is the third billionaire to launch this summer, following the brief space-skimming flights by Virgin Galactic’s Richard Branson and Blue Origin’s Jeff Bezos in July. Only 38, Isaacman made his fortune from a payment-processing company he started in his teens.
Joining Isaacman on the trip dubbed Inspiration4 is Hayley Arceneaux, 29, a childhood bone cancer survivor who works as a physician assistant where she was treated – St Jude Children’s Research Hospital in Memphis, Tennessee. Isaacman has pledged $100m out of his own pocket to the hospital and is seeking another $100m in donations.
Arceneaux became the youngest American in space and the first person in space with a prosthesis, a titanium rod in her left leg.
Also along for the ride are sweepstakes winners Chris Sembroski, 42, a data engineer in Everett, Washington, and Sian Proctor, 51, a community college educator in Tempe, Arizona.
Once opposed to space tourism, NASA is now a supporter.
“Low-Earth orbit is now more accessible for more people to experience the wonders of space,” tweeted NASA Administrator Bill Nelson, who was a congressman when he hitched a ride on a space shuttle decades ago.
Researchers create a novel method of bioprinting neuron cells – Medical Xpress
A group of researchers including a Concordia Ph.D. student have developed a new method of bioprinting adult neuron cells. They’re using a new laser-assisted technology that maintains high levels of cell viability and functionality.
Ph.D. candidate and 2020-21 Public Scholar Hamid Orimi and his co-authors present the feasibility of a new bioprinting technology they developed in a recent paper published in the journal Micromachines. They demonstrate how the methodology they created, called Laser-Induced Side Transfer (LIST), improves on existing bioprinting techniques by using bioinks of differing viscosities, allowing for better 3D printing. Orimi, his Concordia co-supervisor Sivakumar Narayanswamy in the Gina Cody School of Engineering and Computer Science, CRHMR co-supervisor Christos Boutopoulos and co-authors at the Université de Montréal first presented the method in the Nature journal Scientific Reports in 2020.
Orimi co-wrote the newer paper with lead author Katiane Roversi, Sebastien Talbot and Boutopoulos at UdeM and Marcelo Falchetti and Edroaldo da Rocha at Federal University of Santa Catarina in Brazil. In it, the researchers demonstrate that the technology can be used to successfully print sensory neurons, a vital component of the peripheral nervous system. This, they say, is promising for the long-term development of bioprinting’s potential, including disease modeling, drug testing and implant fabrication.
Viable and functional
The researchers used dorsal root ganglion (DRG) neurons from the peripheral nervous system of mice to test their technology. The neurons were suspended in a bioink solution and loaded into a square capillary above a biocompatible substrate. Low-energy nanosecond laser pulses were focused on the middle of the capillary, generating microbubbles that expanded and ejected a cell-laden microjet onto the substrate below it. The samples were briefly incubated, then washed and re-incubated for 48 hours.
The team then ran several tests to measure the printed cells’ capacities. A viability assay found that 86 percent of the cells remained alive two days after printing. The researchers note that viability rates improved when the laser used lower energy. The thermomechanics associated with higher laser energy use was more likely to damage the cells.
Other tests measured neurite outgrowth (in which developing neurons produce new projections as they grow in response to guidance cues), neuropeptide release, calcium imaging and RNA sequencing. Overall, the results were generally encouraging, suggesting that the technique could be an important contribution to the field of bioprinting.
Good for people and animals
“In general, people often leap to conclusions when we talk about bioprinting,” Orimi says. “They think that we can now print things like human organs for transplants. While this is a long-term objective, we are very far from that point. But there are still many ways to use this technology.”
Nearest at hand is drug discovery. The team hopes to get approval to continue their research into cell grafting, which can assist greatly in drug discovery, such as for nerve recovery medicines.
Another advantage to using this technology, Orimi says, is a decrease in animal testing. This not only has a humanitarian aspect—fewer animals will be euthanized to carry out experiments meant to benefit humans—but it will also produce more accurate results, since testing will be carried out on human, not animal, tissue.
Hamid Ebrahimi Orimi et al, Drop-on-demand cell bioprinting via Laser Induced Side Transfer (LIST), Scientific Reports (2020). DOI: 10.1038/s41598-020-66565-x
University of Montreal
Researchers create a novel method of bioprinting neuron cells (2021, September 15)
retrieved 15 September 2021
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
Latest: Some French health care workers suspended, no shot – North Shore News
Citi hires Milovanovic from Goldman to head Americas financials M&A group
Canada’s Trudeau hammers main election rival’s COVID-19 approach
Silver investment demand jumped 12% in 2019
Europe kicks off vaccination programs | All media content | DW | 27.12.2020 – Deutsche Welle
Iran anticipates renewed protests amid social media shutdown
Business4 hours ago
Present Yourself as a ‘No Brainer’ to Hire
Economy3 hours ago
Canadian dollar falls as Canadian data shows economic momentum easing
Politics9 hours ago
Politics Briefing: Post-debate Nanos poll shows the Liberals ahead in Ontario – The Globe and Mail
Business2 hours ago
GM extends EV Bolt production halt to mid-October
Politics10 hours ago
Trump's Big Lie is changing the face of American politics – CNN
Investment23 hours ago
Why Canadians are still struggling to understand investment fees – The Globe and Mail
Art17 hours ago
'A very fundamental question': Is this the world's oldest example of art? – CTV News
Investment24 hours ago
As RedBird Capital Eyes SpringHill Investment, LeBron James Continues March Toward Billionaire Status – Forbes