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Category: satellites

The tradition of road rage on earth does not apply to space where someone can yell at you to move. There has to be a channel of communication form the earth’s control centres and even then, those emails can be missed. Well, this may have almost caused two assets to run into each other about 350 km above Earth last weekend. This involved a Starlink satellite belonging to SpaceX and the European Space Agency’s Aeolus satellite.

The incident actually started on Wednesday when the US Air Force’s 18th Space Control Squadron issued a risk warning to both organisations. The unit that monitors space vessels and debris warned that the collision might happen around September 2nd at 7 am ET, with a 0.1% probability.

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LUXEMBOURG—( )—SES announced today that it has selected SpaceX as a launch partner to deliver its next-generation Medium Earth Orbit (MEO) satellite constellation into space on board Falcon 9 rockets from Cape Canaveral. The two companies have disrupted the industry in the past when SES became the first to launch a commercial GEO satellite with SpaceX, and later as the first ever payload on a SpaceX reusable rocket. Their next launch, in 2021, will be another one for the records as the revolutionary terabit-scale capabilities of SES’s O3b mPOWER communications system disrupt the industry again.

The global O3b mPOWER system comprises an initial constellation of seven high-throughput, low-latency MEO satellites, each capable of generating thousands of electronically-steered beams that can be dynamically adjusted to serve customers in various markets including telecom and cloud, communications-on-the-move and government. O3b mPOWER also will include a variety of intelligent, application-specific Customer Edge Terminals integrated with SES’s terrestrial network and dynamically optimised using the recently announced Adaptive Resource Control (ARC) software system, further boosting O3b mPOWER’s market-leading flexibility.

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WASHINGTON — SpaceX is asking federal regulators to allow it to spread out satellites in more rings around the Earth, saying the tweak to its orbital plans could bring coverage to the southern United States in time for next year’s hurricane season.

In a filing to the U.S. Federal Communications Commission, SpaceX said it wants to triple the number of orbital planes at 550 kilometers, the altitude where its lowest layer of Ku- and Ka-band Starlink satellites are to operate.

SpaceX launched its first 60 Starlink satellites May 23 on a Falcon 9 rocket. The company needs another six Starlink launches before it will have enough satellites to start partial service, but by splitting satellites into 72 rings instead of 24 as originally envisioned, Starlink will be more spread out, enabling greater launch efficiency, SpaceX said.

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One firm looking to capitalize is Beijing-based startup i-Space, which is preparing for its third launch in coming weeks. Like most of the $500 million-valued firm’s employees, CEO Jingqi Cai came from China’s state space industry. She sees no limit to what the Chinese commercial space industry can achieve. “I don’t know any country in the world which can do things as fast as in China,” says Cai.

Still, the ability of China’s commercial space firms to compete is curtailed by strict International Traffic in Arms Regulations (ITAR) rules, which prohibit satellites containing American components from being launched by China. In response, China is offering holistic “turnkey” solutions: building U.S. component-free satellites for clients, handling the launch and offering ground station support. Although China’s share of the commercial market remains small at around 5–10%, say analysts, it is growing with launch of communications and surveillance satellites for nations like Brazil, Venezuela, Laos, Nigeria and Algeria. In addition, European satellite manufacturers have begun designing devices labeled as “ITAR-free” for this reason.

The likelihood is that China’s space exploration and commercial programs will advance in tandem. For i-Space chief engineer Yi Wei, launching satellites is simple compared to his previous job designing escape pods for China’s state-run human space program. “In comparison, I feel no pressure here at all,” he says.

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Caves on the #Moon? This is a 100 m deep pit in the Sea of Tranquility, potentially an entrance to a tunnel system. We’re seeking innovative ideas for how to explore #lunar caves, via the Open Space Innovation Platform 👉 http://www.esa.int/Our_Activities/Preparing_for_the_Future/Discovery_and_Preparation/Seeking_innovative_ideas_for_exploring_lunar_caves (📷 NASA/GSFC/Ariz. State Univ.)

How would you design a system to detect, map and explore caves on the Moon? Our latest hunt for ideas is seeking novel initiatives that address this question.

While the surface of the Moon has been well-documented with cameras on board several satellite missions, relatively little is known about the presence and nature of subsurface cavities. In volcanic areas of the lunar maria, planetary geologists have identified pits that could be related to the collapse of cavities such as lava tubes – where lava once flowed under the lunar surface.

“Exploring and mapping these tubes could provide new information about the Moon’s geology, but they could also be an interesting option as long-term shelter for future human visitors to the Moon,” explains Franceso Sauro, Director of ESA’s PANGAEA planetary geology astronaut training. “They would shield astronauts from cosmic radiation and micrometeorites and possibly provide access to icy water and other resources trapped underground.”

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On August 22nd, spaceflight startup Momentus Space and launch heavyweight SpaceX announced the first public launch contract to fall under the umbrella of the latter company’s recently-announced Satellite Rideshare Program.

Meant to provide a reliable, consistent, and affordable form of shuttle-like access to orbit, SpaceX’s rideshare program will – pending demand – involve no less than one dedicated Falcon 9 launch per year, capable of placing 15+ metric tons (33,000+ lbs) into low Earth orbit. Although SpaceX’s rideshare proposal is far from revolutionary, the company’s contract with Momentus Space appears to be more than a basic launch service agreement, potentially opening doors for far more flexible rideshare launches in the future.

Since its November 2017 founding, Momentus Space has been able to put money where its mouth is far more so than any comparable space tug hopeful, of which there are several. The concept that has helped Momentus raise nearly $34M in just 1.5 years is relatively simple: build a spacecraft whose sole purpose is to propel other spacecraft to their final orbit(s).

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Next week on board the International Space Station, Canada’s Dextre – the most sophisticated space robot ever built – will conduct tests to show how robots could refuel satellites and spacecraft in space! 🤖 🍁 Read the full story: http://www.asc-csa.gc.ca/eng/iss/news.asp.

Video: CSA

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