Archive for the ‘satellites’ category

Jul 24, 2022

France’s Eutelsat close to deal for UK satellite operator OneWeb —sources

Posted by in categories: Elon Musk, internet, satellites

LONDON/PARIS, July 24 (Reuters) — French satellite company Eutelsat (ETL.PA) is poised to buy British rival OneWeb in a deal that could be announced as early as Monday, two sources close to the negotiations said on Sunday.

OneWeb was valued at $3.4 billion in its most recent funding round, one of the sources said. Eutelsat already has a 23% stake in OneWeb and is its second-biggest shareholder.

The merger of the two companies would strengthen their position in the race to build a constellation of low-orbit satellites, challenging the likes of Elon Musk-owned SpaceX’s Starlink and Amazon.com Inc’s (AMZN.O) Project Kuiper.

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Jul 24, 2022

CERN tech in space: driven satellite has been successfully launched

Posted by in categories: particle physics, satellites

CELESTA, the first CERN-driven satellite, successfully entered orbit during the maiden flight of Europe’s Vega-C launch vehicle. Launched by the European Space Agency from the French Guiana Space Centre (CSG) at 13.13 UTC on 13 July 2022, the satellite deployed smoothly and transmitted its first signals in the afternoon. Weighing one kilogram and measuring 10 centimetres on each of its sides, CELESTA (CERN latchup and radmon experiment student satellite) is a 1U CubeSat designed to study the effects of cosmic radiation on electronics. The satellite carries a Space RadMon, a miniature version of a well-proven radiation monitoring device deployed in CERN’s Large Hadron Collider (LHC). CELESTA has been sent into an Earth orbit of almost 6,000 kilometres. “Right in the middle of the inner Van Allen belt, CELESTA will survey an unusual orbit where radiation levels are at their highest,” explains Markus Brugger, Head of the CERN Experimental Areas group and initiator of both the CHARM and CELESTA projects in the context of the R2E (Radiation to Electronics) initiative. The Space RadMon is a flagship example of how CERN technologies can have applications beyond particle physics experiments. “Based entirely on standardised, ultra-sensitive components selected and calibrated by CERN, and mostly in CERN facilities, the Space RadMon is a lightweight and low-power instrument, ideal for future risk-tolerant space missions,” says Ruben Garcia Alia, R2E project leader. “If CELESTA is successful, the Space RadMon could even be adapted to satellite constellations as a predictive maintenance tool – to anticipate the necessary renewal of satellites.” A radiation model of the CELESTA satellite was also tested in CHARM, a CERN mixed-field facility capable of reproducing, to a large extent, the radiation environment of low Earth orbit. The mission will be an important validation of this capability at the facility. “Capable of testing satellites all at once, rather than component by component, CHARM is a unique installation worldwide, remarkably different from other irradiation test facilities. It offers a simple, low-cost alternative and the possibility to assess system-level effects,” says Salvatore Danzeca, CHARM facility coordinator. The success of this satellite is the result of a fruitful partnership between CERN and the University of Montpellier, which involved many students from both institutions and radiation effect specialists from CERN. CELESTA is based on the CSUM radiation tolerant platform. It will be operated from the CSUM control centre. The European Space Agency provided the launch slot in the framework of its small satellite programme. “On a mission to make space more accessible, CELESTA is an exciting example of how CERN expertise can have a positive impact on the aerospace industry. With this mission, CERN displays its low-cost solutions for measuring radiation and testing satellites against it – thus providing universities, companies and startups with the means to realise their space ambitions,” concludes Enrico Chesta, CERN’s Aerospace and Environmental Applications Coordinator in the Knowledge Transfer group. Further information: Video of the launch More about the aerospace applications.

Jul 21, 2022

Mushrooms could solve a huge problem in outer space

Posted by in categories: materials, satellites

Circa 2021

Mycelium is very light in weight, it naturally floats on water, it can withstand the cold of space where we don’t have to worry about cold welding, and we can add in fine strains of metal material which is used to transmit almost any type of signal. As you can see, there are numerous reasons why mycelium is quite suitable for our satellites in space, on land, and in the air on its way to space.

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Jul 21, 2022

SpaceX’s first Starlink V2 satellites spotted at Starbase

Posted by in categories: Elon Musk, internet, satellites

On Monday, SpaceX was spotted loading some of the first Starlink V2 satellite prototypes into a custom mechanism designed to refill Starship’s magazine-like payload bay.

While it’s not the first time SpaceX has used the dispenser, the photos captured by photographer Kevin Randolph are the first to clearly show real prototypes of the next generation of Starlink satellites. According to CEO Elon Musk, those Starlink Gen2 or V2 satellites will be “at least 5 times better”, “an order of magnitude more capable,” and about four times heavier than current (V1.5) Starlink satellites.

The potential of the new satellite bus design paired with Starship’s massive fairing and lift capacity could dramatically improve the viability and cost-effectiveness of SpaceX’s Starlink constellation. First, though, the company needs to launch and qualify prototypes of the new satellite design and verify that all associated ground support equipment works as expected.

Jul 19, 2022

China’s space agency could send a mission to Neptune — major discoveries await

Posted by in categories: robotics/AI, satellites

Ice giants like Neptune are a potential treasure trove of scientific discoveries.

There’s also Triton’s cryovolcanic activity, resulting from tidal flexing in its interior caused by Neptune’s gravitational pull. However, this activity increases when Triton is closest to the Sun (perihelion), resulting in greater eruptions from the interior. This will leave higher concentrations of nitrogen and other gases in the moon’s tenuous atmosphere, which could be studied to learn more about its interior composition and structure. As for the rings, the team noted several objectives there:

“Establish a complete list of planetary rings and their inner Shepherd satellites, study the characteristics, formation mechanism, material exchange, and gas transport of planetary rings of different orbital types, analyze the origin of different celestial bodies, and detect possible organic matter… The multiple planetary rings of Neptune are not uniformly distributed in longitude. Instead, it presents an arc-block-like discrete structure. Why these arc-block structures can exist, and whether they exist stably without spreading out, are all interesting dynamical problems.”

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Jul 14, 2022

Mars satellite finishes imaging the planet’s entire surface

Posted by in category: satellites

The China National Space Administration’s Tianwen-1 spacecraft has finished its mission to image the entire Martian surface.

Jul 12, 2022

Internet on the go: FCC greenlights Starlink service on moving cars, boats, and planes

Posted by in categories: internet, satellites

If you’re ready for connectivity on the move, SpaceX’s Starlink satellite broadband may soon be the answer. The US Federal Communications Commission on Thursday gave the internet provider the greenlight to provide service on moving vehicles, boats, and planes.

The new authority should help SpaceX meet “the growing user demands that now require connectivity while on the move,” wrote FCC International Bureau Chief Tom Sullivan in the approval, “whether driving an RV across the country, moving a freighter from Europe to a U.S. port, or while on a domestic or international flight.”

Jul 11, 2022

Russia may be building a giant laser-based anti-satellite weapon

Posted by in categories: military, satellites

Will it succeed?An open-source investigation suggests that Russia is building a giant laser-based anti-satellite weapon near Zelenchukskaya in the southwest part of the country, Space.com reported. This will allow it a soft-kill option to take down adversarial satellites.

Instead of temporarily blurring sensors, Russia is going full throttle, looking to destroy optical sensors on satellites.

Jul 10, 2022

SpaceX prices fast Starlink satellite Internet for ships, yachts, and oil rigs at US$5,000 with the highest download speeds

Posted by in categories: internet, satellites

Barely did the ink under the FCC approval signature dry, and SpaceX’s Starlink satellite Internet announced a new pricey Maritime service for commercial ships, oil rigs, or premium yachts. Nothing is stopping people with recreational boats to get Starlink Maritime, too, save for the monthly tag and equipment fees.

Jul 9, 2022

Starlink: SpaceX is now offering for ships as well

Posted by in categories: internet, satellites

What is most interesting about their announcement is that it says that in about 6 months they will be offering service to the entire planet when they will be flying enough laser satellites to pull this off.

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