Copernical Team
Scientists study distributed satellite cluster laser networking algorithm with double-layer Markov DRL architecture
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With the development of satellite networks, space-air-ground integrated networks, and the Internet of Things, the future giant constellations, high-resolution Earth observation, human-crewed spacecraft, space stations and other space-based information systems have put forward an increasingly urgent demand for large-capacity space networking and information transmission.
The space distributed satellite cluster (DSC) overcomes the resource constraints and technical bottlenecks of single-satellite platforms by using multiple heterogeneous satellites in the same orbit to cooperate with distributed payloads to achieve large-capacity high-speed networking and information transmission and exchange in space, providing an effective solution for the above-mentioned needs.
The high-speed variation of relative positions of multi-satellites in the same orbit and the visible state constraints of satellite-borne optical phased array antennas cause the topology of DSC to be dynamically time-varying and intermittent link interruptions. It is necessary to solve the problems of rapid topology reconstruction and dynamic continuous networking under these two situations.
Virgin Galactic notches fourth spaceflight in four months
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Virgin Galactic on Friday announced it had sent three paying customers on an hour-long journey to space and back, racking up its fourth successful flight in as many months.
The private astronauts aboard the Galactic 03 mission were among the first people to buy their tickets from the company founded by British billionaire Richard Branson in 2004.
American real estate entrepreneur Ken Baxter, South Africa-born conservationist Timothy Nash, and British engineer and entrepreneur Adrian Reynard took their places aboard the rocket-powered spaceplane VSS Unity, along with Virgin Galactic's astronaut instructor Beth Moses.
"What a thrilling day for our three new private astronauts and the entire team at Virgin Galactic," said CEO Michael Colglazier.
Vodafone and Amazon's Project Kuiper to extend connectivity in Africa and Europe
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Vodafone and Project Kuiper, Amazon's low Earth orbit satellite (LEO) communications initiative, has announced a strategic collaboration through which Vodafone and Vodacom plan to use Project Kuiper's network to extend the reach of 4G/5G services to more of their customers in Europe and Africa.
Vodafone and Vodacom plan to use Project Kuiper's high-bandwidth, low-latency satellite network Mexico's CFE TEIT taps SES's Mobile Backhaul Service via SES-17 to Boost Digital Inclusion
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Expanding on a partnership committed to close the connectivity divide across Mexico, CFE Telecomunicaciones e Internet para Todos (CFE TEIT) and SES has announced the delivery of voice and data services enabled by SES's Mobile Backhaul solution to 400 underserved, remote villages and communities across the country via the very high throughput SES-17 Ka-band satellite.
With the common goal China publishes new datasets obtained by Mars, lunar probes
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China published two new batches of data on Monday, obtained by its Mars probe and lunar probe.
The scientific data obtained by three scientific payloads including a high-definition camera on Tianwen 1, the country's Mars probe, from January to March this year, have been released, amounting to nearly 68 gigabytes, according to the National Astronomical Observatories of the Chinese Academy o Effect of geometric porosities on aerodynamic characteristics of supersonic parachutes
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The safe landing of the probe is one of the most difficult challenges in Mars exploration, and the Mars supersonic parachute is extremely important for this process. To date, all the successful Mars exploration missions have used disk-gap-band (DGB) parachutes. However, the DGB parachute with the highest diameter of 21.35 m cannot be further used for future Mars exploration missions with higher Sea launch 1st by Chinese private entity
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Galactic Energy has become the first Chinese private company to carry out a sea-based launch mission.
The Beijing-based company announced on Tuesday evening that the sea-borne variant of its CERES 1 carrier rocket conducted its first liftoff at 5:34 pm that day from a mobile launch platform - a modified deck barge - in the Yellow Sea off the eastern province of Shandong. It then sent four Firefly Aerospace awarded multi-launch agreement with L3Harris
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Firefly Aerospace, Inc., an end-to-end space transportation company, has signed a multi-launch agreement with L3Harris Technologies [NYSE:LHX] for three dedicated launches on Firefly's Alpha vehicle in 2026. The agreement further positions Firefly as the leader in small-lift launch services as the company ramps up production of its Alpha vehicle to support the growing needs of both government an Terran Orbital unveils new product line of seven satellite buses
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Terran Orbital (NYSE: LLAP) has announced a new lineup of seven standard satellite bus platforms. Over a decade ago, Terran Orbital pioneered the creation of CubeSat standards, and now, we are establishing new benchmarks for satellite technology for the coming decade. These standards are built upon Terran Orbital's manufacturing capabilities, featuring components and modules that can be readily Furthest ever detection of a galaxy's magnetic field
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Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected the magnetic field of a galaxy so far away that its light has taken more than 11 billion years to reach us: we see it as it was when the Universe was just 2.5 billion years old. The result provides astronomers with vital clues about how the magnetic fields of galaxies like our own Milky Way came to be. 
