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SpaceX launches new 60 Starlink satellites as it nears global coverage

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SpaceX proceeded with the rollout of its Starlink broadband constellation with another launch of 60 satellites April 7, edging closer to offering continuous global service.

A Falcon 9 took off from Space Launch Complex 40 at Cape Canaveral Space Force Station at 12:34 p.m. Eastern. The rocket’s upper stage deployed its payload of 60 Starlink satellites into orbit a little more than an hour later.

The rocket’s first stage arrived on a droneship in the Atlantic eight and a half minutes after liftoff. This was the seventh trip for this booster, which first dispatched the Demo-2 commercial crew mission last May and most as of late dispatched another arrangement of Starlink satellites March 11.

This was the tenth Falcon 9 launch of the year for SpaceX, eight of which have been dedicated to Starlink satellites. The organization currently has 1,378 satellites in circle when representing those launched and subsequently deorbited, as per measurements kept up by Jonathan McDowell.

That group of stars is currently approaching the size expected to offer in any event fundamental assistance around the world. “We do have global reach, but we don’t have yet have full connectivity globally,” Gwynne Shotwell, president and chief operating officer of SpaceX, said during an April 6 board conversation at the Satellite 2021 LEO Digital Forum.

“We hope after about 28 launches we’ll have continuous coverage throughout the globe,” she added. This dispatch is the 23rd of v1.0 satellites, albeit a couple v0.9 satellites dispatched almost two years prior stay in orbit, alongside 10 v1.0 satellites dispatched into polar circle on a rideshare mission in January. That recommends the organization will arrive at the constant inclusion achievement after four to five more launches.

Those launches would push SpaceX against its present FCC authorization, which permits the company to operate up to 1,584 satellites in orbits at approximately 550 kilometers. The organization’s present permit from the Federal Communications Commission permits it to work 2,825 extra satellites at heights of 1,100 to 1,300 kilometers. SpaceX had recorded a solicitation with the FCC to modify that license, moving those extra satellites to 550 kilometers.

The FCC still can’t seem to decide on that modification, yet SpaceX’s present launch rate implies the organization will hit its present limit of satellites at 550 kilometers several months. Shotwell referenced during the board that the organization is “bringing our satellites down from our original altitude” to address space sustainability concerns. She did not, though, address the FCC license modification issue beyond saying that the company would continue launching satellites “as we’re allowed.”

Shotwell said the organization would press ahead with Starlink launches even in the wake of hitting the edge of constant global coverage. “The plan after that is to continue to add satellites to provide additional capacity,” she said. That incorporates launching additional satellites to polar orbit starting this mid year from Vandenberg Air Force Base in California. Those polar satellites, she said, will probably incorporate laser intersatellite joins that the organization has tried different things with on a couple of Starlink satellites.

The component of the generally Starlink exertion that has attracted in the most consideration is the series of launches that has made the world’s biggest satellite constellation in under two years. That has not really been the greatest test for SpaceX, however.

“The satellites and launch have been pretty straightforward for us. We thought we’d struggle a little bit more on the satellites, but it turns out our Dragon, which is a very sophisticated satellite, helped us tremendously in figuring out the satellite architecture for Starlink,” she said.

What has been a challenge, she said, is managing a developing number of clients and building a dependable organization, yet “none of which we can’t solve.”

Starlink stays in a beta test in the United States and several other countries. Shotwell said there are no designs to end the beta test and move into full business administration sooner rather than later. “We still have a lot of work to do to make the network reliable,” she said. “We’ll move out of beta when we have a really great product that we are very proud of.”

Another area of exertion has been on the ground equipment utilized by Starlink subscribers, prominently the electronically steerable antenna. Shotwell said the organization has been attempting to lessen the expense of that hardware, which is needed to win wide-scale adoption.

“We have made great progress on reducing the cost of our terminal,” she said. That equipment originally cost about $3,000. “We’re less than half of that right now.”

Clients right now pay about $500 for that equipment, implying that SpaceX is still essentially subsidizing those terminals. That may change, however, as the organization gains proceeded with headway to bring down costs. “We do see our terminals coming in the few-hundred-dollar range within the next year or two.”

Shotwell showed up on a panel with executives of a few other satellite operators, large numbers of whom argued that hybrid systems that utilization satellites in low and medium Earth orbits just as geostationary orbit, or GEO satellites alone, offer better arrangements. “We see absolutely no way, no possibility, that those low-orbit constellations can fulfill the latent demand of all the unserved population today,” said Rodolphe Belmer, chief executive of Eutelsat.

As Belmer and different executives on the board communicated their reservations about LEO star groupings, Shotwell grinned. “I just always smile, by the way, when people make projections about what can and can’t be done with technology,” she said. “I don’t think we have any idea how technology can evolve five years from now.”

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Researchers Achieve Breakthrough in Quantum Simulation of Electron Transfer

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A team at Rice University has achieved a significant breakthrough in simulating molecular electron transfer using a trapped-ion quantum simulator. Their research offers fresh insights into the dynamics of electron transfer and could pave the way for innovations in molecular electronics, renewable energy, and cc.

Electron transfer is a critical process underpinning numerous physical, chemical, and biological phenomena. However, the complexity of quantum interactions has long made it a challenging area to study. Conventional computational techniques often struggle to capture the full range of variables influencing electron transfer.

To address these challenges, the researchers developed a programmable quantum system capable of independently controlling key factors such as donor-acceptor energy gaps, electronic and vibronic couplings, and environmental dissipation. Using ions trapped in an ultra-high vacuum and manipulated by laser light, the team demonstrated real-time spin dynamics and measured electron transfer rates.

“This is the first time that this kind of model has been simulated on a physical device while incorporating the role of the environment and tailoring it in a controlled way,” said Guido Pagano, lead author of the study published in Science Advances.

Pagano added, “It represents a significant leap forward in our ability to use quantum simulators to investigate models and regimes relevant to chemistry and biology. By harnessing the power of quantum simulation, we hope to explore scenarios currently inaccessible to classical computational methods.”

Through precise engineering of tunable dissipation and programmable quantum systems, the researchers explored both adiabatic and nonadiabatic regimes of electron transfer. The experiment not only illuminated how quantum effects function under diverse conditions but also identified optimal parameters for electron transfer.

The team emphasized that their findings bridge a critical gap between theoretical predictions and experimental verification. By offering a tunable framework to investigate quantum processes in complex systems, their work could lead to groundbreaking advancements in renewable energy technologies, molecular electronics, and the development of novel materials.

“This experiment is a promising first step toward understanding how quantum effects influence energy transport, particularly in biological systems like photosynthetic complexes,” said Jose N. Onuchic, study co-author. “The insights gained could inspire the design of more efficient light-harvesting materials.”

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Crew Dragon Mission Delay Extends Astronauts’ Stay on ISS by a Month

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The next mission of SpaceX’s Crew Dragon to the International Space Station (ISS) has been postponed by a month due to delays in completing a new spacecraft. This decision will extend the stay of some astronauts aboard the ISS, including two who have been there since June.

NASA announced on December 17 that the Crew-10 mission, initially scheduled for February, is now set to launch no earlier than late March. The delay stems from the need for additional time to finish the fabrication, assembly, testing, and integration of a new Crew Dragon capsule.

Crafting the New Dragon Capsule

“Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail,” said Steve Stich, NASA’s Commercial Crew Program Manager. He commended SpaceX’s efforts to expand the Dragon fleet and the flexibility of the ISS crew in accommodating the delay.

The new Crew Dragon will be the fifth in SpaceX’s lineup of crewed spacecraft, complementing its three cargo Dragon vehicles. According to Sarah Walker, SpaceX’s Dragon Mission Management Director, the spacecraft was near completion as of July and was undergoing final work at SpaceX’s California facility. It is now expected to arrive in Florida for final preparations in January.

While NASA did not specify the exact reasons for the delay, it considered other options, including using an existing Crew Dragon or making adjustments to the launch manifest, before opting for the delay. Existing capsules, including Freedom, currently at the ISS, and Endeavour and Resilience, which recently returned from other missions, were not available for a February launch.

Crew Adjustments and Extended ISS Stay

The Crew-10 mission will proceed with its planned roster: Anne McClain and Nichole Ayers from NASA, Takuya Onishi from JAXA, and Kirill Peskov from Roscosmos.

The delay has implications for the Crew-9 mission, launched in late September with NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov. They were joined by NASA astronauts Suni Williams and Butch Wilmore, who have been on the station since June after arriving on Boeing’s CST-100 Starliner.

Originally, Williams and Wilmore were scheduled to stay for just over a week, but their time on the ISS will now extend to about 10 months. NASA had earlier decided to return the uncrewed Starliner to Earth due to concerns with its thrusters.

Despite the delay, NASA emphasizes that Williams and Wilmore are not “stranded” as they can return to Earth in an emergency. Their extended stay is tied to the decision to use the new Crew Dragon for the upcoming mission, as preparing another vehicle was deemed impractical.

Looking Ahead

Assuming the Crew-10 launch proceeds in late March, the Crew-9 spacecraft is expected to return to Earth in early April after a handover period. This delay underscores the complexity of preparing new spacecraft while ensuring the safety and readiness of all missions.

As the new Crew Dragon nears completion, SpaceX and NASA remain focused on maintaining seamless operations aboard the ISS and advancing human space exploration.

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Boeing Starliner crews will have an extended stay on the ISS due to SpaceX’s delay

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NASA said on Tuesday that it has decided to postpone the launch until at least late March because SpaceX’s upcoming crew rotation mission to the ISS would utilize a new Dragon spacecraft that won’t be ready by the initial February launch date.

For the two NASA astronauts who traveled to the ISS last June on Boeing’s troubled Starliner spacecraft, that means an even longer stay. On June 5, they took off from Cape Canaveral, Florida, aboard a United Launch Alliance Atlas V on the first crewed mission of Starliner. They arrived at the ISS one day later for a stay that was only expected to last eight days.

NASA decided to be cautious and maintain Butch Wilmore and Suni Williams aboard the ISS while sending Starliner home without a crew due to issues with the spacecraft’s thrusters and helium leaks on its propulsion module.

In order for Williams and Wilmore to have a trip home, they will now be traveling on the SpaceX Crew Dragon Freedom, which traveled up to the ISS and docked in September, although with only two crew members on board rather than the customary four.

When Crew-10 arrived in late February, the mission’s goal was to take a trip home.

However, NASA confirmed that Crew-10 will not fly with its replacement crew until late March. This allows NASA and SpaceX time to prepare the new Dragon spacecraft, which has not yet been given a name, for the voyage. Early January is when it is anticipated to reach Florida.

“Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail,” stated Steve Stich, the program manager for NASA’s Commercial Crew. “We appreciate the hard work by the SpaceX team to expand the Dragon fleet in support of our missions and the flexibility of the station program and expedition crews as we work together to complete the new capsule’s readiness for flight.”

It would be the fifth Dragon spacecraft with a crew. Its fleet of four current Dragon spacecraft has flown 15 times, sending 56 passengers to space, including two who were two-time fliers. The first crewed trip took place in May 2020. Each spacecraft’s name is chosen by the crew on its first flight.

According to NASA, teams considered using the other crew Dragon spacecraft that were available but decided that rescheduling Crew-10’s launch date was the best course of action.

JAXA (Japan Aerospace Exploration Agency) astronaut and mission specialist Takuya Onishi will undertake his second spaceflight, Roscosmos cosmonaut and mission specialist Kirill Peskov will make his first spaceflight, NASA astronaut and commander Anne McClain will make her second spaceflight, and NASA astronaut and pilot Nichole Ayers will become the first member of the 2021 astronaut candidate class to reach space.

Given that Crew-9 won’t be able to return home until a handover period following Crew-10’s arrival, Wilmore and Williams may have to spend nearly nine months aboard as a result of the delay.

Rotations aboard the ISS typically last six months.

It is unclear when and how Starliner will receive its final certification so that it can start trading off the regular ferry service with SpaceX, as NASA’s Commercial Crew Program aims to have two providers for U.S.-based rotation missions with SpaceX and Boeing. This is due to the Crew Flight Test mission’s incomplete launch.

According to the terms of its contract, Boeing must deliver six missions to the ISS before the space station’s service ends, which is presently scheduled for 2030.

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