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Hier — 3 avril 2025Flux principal

ESA's New Documentary Paints Worrying Picture of Earth's Orbital Junk Problem

Par : BeauHD
3 avril 2025 à 10:00
The European Space Agency's short film Space Debris: Is it a Crisis? highlights the growing danger of orbital clutter, warning that "70% of the 20,000 satellites ever launched remain in space today, orbiting alongside hundreds of millions of fragments left behind by collisions, explosions and intentional destruction." Inkl reports: The approximately eight-minute-long film "Space Debris: Is it a Crisis?" attempts to answer its conjecture with supportive statistics and orbital projections. [...] The film also mentions that the kind of Earth orbit matters when discussing whether we're in a space junk "crisis" -- though unfortunately, orbits at risk appear to be those with satellites that help with communication and navigation, as well as our fight against another primarily human-driven crisis: global warming. Still, the film emphasizes that solutions ought to be thought of carefully: "True sustainability is complex, and rushed solutions risk creating the problem of burden-shifting." You can watch the film on ESA's website.

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Amazon Set To Launch First Operational Satellites For Project Kuiper Network

Par : BeauHD
3 avril 2025 à 07:00
Amazon and United Launch Alliance will launch 27 full-scale satellites on April 9 as part of Amazon's Project Kuiper, marking the company's first major step toward building a global satellite internet network to rival SpaceX's Starlink. GeekWire reports: ULA said the three-hour window for the Atlas V rocket's liftoff from Cape Canaveral Space Force Station's Space Launch Complex 41 in Florida is scheduled to open at noon ET (9 a.m. PT) that day. ULA is planning a live stream of launch coverage via its website starting about 20 minutes ahead of liftoff. Amazon said next week's mission -- known as Kuiper-1 or KA-1 (for Kuiper Atlas 1) -- will put 27 Kuiper satellites into orbit at an altitude of 280 miles (450 kilometers). ULA launched two prototype Kuiper satellites into orbit for testing in October 2023, but KA-1 will mark Amazon's first full-scale launch of a batch of operational satellites designed to bring high-speed internet access to millions of people around the world. [...] According to Amazon, the Kuiper satellite design has gone through significant upgrades since the prototypes were launched in 2023. Amazon's primary manufacturing facility is in Kirkland, Wash., with some of the components produced at Project Kuiper's headquarters in nearby Redmond. The mission profile for KA-1 calls for deploying the satellites safely in orbit and establishing ground-to-space contact. The satellites would then use their electric propulsion systems to settle into their assigned orbits at an altitude of 392 miles (630 kilometers), under the management of Project Kuiper's mission operations team in Redmond. Under the current terms of its license from the Federal Communications Commission, Amazon is due to launch 3,232 Kuiper satellites by 2029, with half of those satellites going into orbit by mid-2026.

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Top Broadband Official Exits Commerce Department With Warning About Starlink

Par : BeauHD
17 mars 2025 à 23:20
An anonymous reader quotes a report from Politico: A top Commerce Department official sent a blistering email to his former colleagues on his way out the door Sunday warning that the Trump administration is poised to unduly enrich Elon Musk's satellite internet company with money for rural broadband. The technology offered by Starlink ... is inferior, wrote Evan Feinman, who had directed the $42.5 billion broadband program for the past three years. "Stranding all or part of rural America with worse internet so that we can make the world's richest man even richer is yet another in a long line of betrayals by Washington," Feinman said. Feinman's lengthy email, totaling more than 1,100 words and shared with POLITICO, is a sign of deep discomfort about the changes underway that will likely transform the Broadband Equity, Access and Deployment Program. Commerce Secretary Howard Lutnick recently pledged a vigorous review of BEAD, with an aim to rip out what he sees as extraneous requirements and remove any preference for particular broadband technologies like fiber. The program, created in the 2021 infrastructure law program, became a source of partisan fighting last year on the campaign trail as Republicans attacked the Biden administration for its slow pace. No internet expansion projects have begun using BEAD money, although some states were close at the beginning of this year. Feinman's critique: In his email, Feinman notes Friday was his last day leading BEAD and that he's "disappointed not to be able to see this project through." Feinman's email warns the Trump administration could undermine BEAD and he encourages people to fight to retain its best aspects. Feinman said the administration should "NOT change it to benefit technology that delivers slower speeds at higher costs to the household paying the bill," adding that this isn't what rural America, congressional Republicans or Democrats, the states or the telecom industry wants. "Reach out to your congressional delegation and reach out to the Trump Administration and tell them to strip out the needless requirements, but not to strip away from states the flexibility to get the best connections for their people," Feinman wrote. He said he's not worried about the Trump administration nixing requirements around climate resiliency, labor and middle class affordability, saying those issues "were inserted by the prior administration for messaging/political purposes, and were never central to the mission of the program." Feinman warns that changes to the BEAD program under the Trump administration could stall state-level broadband progress, with Louisiana, Delaware, and Nevada already stuck in review. Meanwhile, no specific guidance or timeline for these changes has been provided, and Arielle Roth's confirmation as NTIA head is still pending in the Senate.

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Alphabet Spins Off Laser-Based Internet Project Taara From 'Moonshot' Unit

Par : msmash
17 mars 2025 à 17:20
Alphabet is spinning out Taara, a laser-based internet company from its X "moonshot" incubator, securing backing from Series X Capital while retaining a minority stake. Taara's technology transmits data at 20 gigabits per second over 20km by firing pencil-width light beams between traffic light-sized terminals, extending traditional fiber-optic networks with minimal construction costs. Based in Sunnyvale, California, the company operates in 12 countries, including India and parts of Africa, where it created a 5km laser link over the Congo River between Brazzaville and Kinshasa. The two-dozen-strong team partners with telecommunications firms like Bharti Airtel and T-Mobile to extend core fiber-optic networks to remote locations or dense urban areas. Taara originated from Project Loon, which was shut down in 2021 after facing regulatory challenges. The company is developing silicon photonic chips to replace mirrors and lenses in its terminals and potentially enable multiple connections from a single transmitter.

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SpaceX Readies Starlink India Launch

Par : msmash
11 mars 2025 à 14:00
SpaceX's Starlink has secured its first agreement in India, partnering with telecommunications leader Bharti Airtel to bring high-speed satellite internet to the world's most populous country, the companies announced Tuesday [PDF]. The landmark deal will enable Starlink to tap into Airtel's extensive retail network and ground infrastructure while expanding its global reach into previously underserved regions across India, pending regulatory authorizations. "We are excited to work with Airtel and unlock the transformative impact Starlink can bring to the people of India," said Gwynne Shotwell, President and Chief Operating Officer of SpaceX. "The team at Airtel has played a pivotal role in India's telecom story, so working with them to complement our direct offering makes great sense for our business." The collaboration will explore selling Starlink equipment through Airtel's retail stores and offering services to business customers while connecting communities in rural areas with limited connectivity.

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SpaceX Partners With Airtel To Launch Starlink in India

Par : msmash
11 mars 2025 à 11:25
SpaceX's Starlink has secured its first agreement in India, partnering with telecommunications leader Bharti Airtel to bring high-speed satellite internet to the world's most populous country, the companies announced Tuesday [PDF]. The landmark deal will enable Starlink to tap into Airtel's extensive retail network and ground infrastructure while expanding its global reach into previously underserved regions across India, pending regulatory authorizations. "We are excited to work with Airtel and unlock the transformative impact Starlink can bring to the people of India," said Gwynne Shotwell, President and Chief Operating Officer of SpaceX. "The team at Airtel has played a pivotal role in India's telecom story, so working with them to complement our direct offering makes great sense for our business." The collaboration will explore selling Starlink equipment through Airtel's retail stores and offering services to business customers while connecting communities in rural areas with limited connectivity.

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Why Most Countries Are Struggling To Shut Down 2G

Par : msmash
7 mars 2025 à 20:00
Global telecom operators are struggling to shut down aging 2G networks despite pressure to free up spectrum for 4G and 5G services, as the transition threatens to exclude millions of vulnerable users. While Vietnam successfully decommissioned 2G in November 2024 by providing free 4G phones to low-income users, countries like South Africa and India have delayed shutdowns over concerns about cutting off phone access for millions. According to GSMA Intelligence, 61 countries have planned or initiated 2G network shutdowns to enhance bandwidth and reduce maintenance costs. For 2.5 billion people worldwide, smartphones cost about 30% of monthly income, keeping basic phones essential despite declining global feature phone sales.

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AT&T and Verizon Connect First Cellphone-To-Satellite Video Calls

Par : BeauHD
24 février 2025 à 22:20
AT&T and Verizon have successfully completed their first cellphone-to-satellite video calls using AST SpaceMobile's satellites, marking a significant step toward commercial satellite networks. The Verge reports: Verizon has completed its first cellphone-to-satellite video call, while AT&T has completed its first using satellites that will be used as part of a commercial network. [...] Verizon pulled off "a live video call between two mobile devices with one connected via satellite and the other connected via Verizon's terrestrial network connection," according to a company press release. In AT&T's case, "AT&T and AST SpaceMobile have successfully completed another video call by satellite to an everyday smartphone over AT&T spectrum," per AT&T's press release. Both phone companies relied on AST's constellation of five BlueBird satellites that were launched last September for the tests. AT&T's initial video call test happened in June 2023.

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