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Category: satellites – Page 124

The Space Force’s announcement last week that United Launch Alliance and SpaceX will launch expensive spy satellites and other military payloads brings a long and often fierce battle for government funds to an end — at least for now.

Why it matters: This type of government money — particularly in light of the economic downturn caused by the coronavirus pandemic — is key for space companies that often work on thin margins.

The state of play: ULA was awarded the bulk of the funds — $337 million — for two missions due to launch in 2022, with SpaceX winning $316 million for one mission launching that year.

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SpaceX is manufacturing its Starlink satellites at an unprecedented rate for the space industry, analysts say, as the company dives headlong into building a space-based global internet service.

Elon Musk’s company told the Federal Communications Commission in a presentation last month that its Starlink unit is “now building 120 satellites per month” and has “invested over $70 million developing and producing thousands of consumer user terminals per month.”

“Invested hundreds of millions of dollars in Starlink to date,” the SpaceX presentation added.

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SpaceX is launching South Korea’s first dedicated military communications satellite on Monday, with a target liftoff time of 5 PM EDT (2 PM PDT). The launch window spans nearly four hours, ending at 8:55 PM EDT (5:55 PM PDT), so SpaceX has considerable flexibility in terms of when the launch could actually take place.

The Falcon 9 rocket being used for this mission includes a first-stage booster that flew previously on SpaceX and NASA’s Demo-2 mission — the historic mission that carried astronauts on board a SpaceX rocket for the first time. That launch, which took place on May 30, saw astronauts Bob Behnken and Doug Hurley successfully delivered to the International Space Station — where they’re currently preparing to depart on Demo-2’s concluding trip home on August 1.

This mission will include a recovery attempt for the first stage, using SpaceX’s “Just Read the Instructions” drone landing ship in the Atlantic Ocean.

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“We need to go to space to help us here on Earth. Satellites have played an enormous role in improving the state of the world, and will do even more”.

I’m often asked: ‘Why are you building satellites for space when there are so many problems to fix here on Earth?’ It’s a perfectly rational question. The short answer is that we need to go to space to help us here on Earth. Satellites have played an enormous role in improving the state of the world, and will do even more as an explosion of technology innovation enables large new fleets of small satellites to be deployed with radical new capabilities.

The Sustainable Development Goals (SDGs, or Global Goals), unanimously adopted at the United Nations in 2015, are a great summary of the world’s current challenges. Space is one of many important tools that can be used to help us address them. In May, the UN held a meeting on Technology Innovation and the Global Goals, and I was asked to address the role of satellites in helping the world achieve the SDGs.

Continue reading “Space technology is improving our lives and making the world a better place. Here’s how” | >

A recently deployed DARPA CubeSat seeks to demonstrate technology that could improve imaging of distant objects in space and allow powerful space telescopes to fit into small satellites. DARPA’s Deformable Mirror (DeMi) CubeSat deployed from the International Space Station July 13, beginning the technology demonstration of a miniature space telescope with a small deformable mirror called a microelectromechanical systems (MEMS) mirror.

DeMi made first contact about a week following launch, demonstrating the expected power from its solar arrays, as well as correct spacecraft pointing and stable temperatures. The team will focus on payload checkout over the coming days.

Deformable mirrors can adjust the shape of their reflective surfaces to correct for the effects of temperature and mechanical changes on a space telescope, improving image quality. The experiment will measure how well a MEMS deformable mirror performs in space, from the rocket launch through its time in orbit experiencing the thermal and radiation environment.

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Eyeing a launch in 2023, DARPA’s Robotic Servicing of Geosynchronous Satellites (RSGS) program will focus the remainder of this year on completing the elements of the robotic payload. The objective of RSGS is to create an operational dexterous robotic capability to repair satellites in geosynchronous Earth orbit (GEO), extending satellite life spans, enhancing resilience, and improving reliability for the current U.S. space infrastructure.

Earlier this year, DARPA partnered with Space Logistics LLC, a wholly owned subsidiary of Northrop Grumman, to provide the spacecraft bus, launch, and operations of the integrated spacecraft. DARPA will provide the payload that flies on the bus, including the robotic arms, through an agreement with the U.S. Naval Research Laboratory (NRL).

In 2021, NRL will integrate the robotic arms onto the payload structure, and then is expected to begin environmental tests by the end of same year. After launch in 2023, it will take approximately nine months to reach GEO, and the program anticipates servicing satellites in mid-2024.

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SpaceX said Starlink, its nascent satellite internet service, has already seen “extraordinary demand” from potential customers, with “nearly 700,000 individuals” across the United States indicating they are interested in the company’s coming service.

Due to the greater-than-expected interest, SpaceX filed a request with the Federal Communications Commission on Friday — asking to increase the number of authorized user terminals to 5 million from 1 million. User terminals are the devices consumers would use to connect to the company’s satellite internet network.

The request comes about a month and a half after SpaceX updated its Starlink website to allow potential customers to “get updates on Starlink news and service availability in your area.” Registering one’s interest in Starlink service meant simply submitting an email address and postal address, with no fee required to receive updates.

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Fascinating interview with Dutch astronomer Anthony Brown on ESA’s Gaia satellite and what it’s telling us about our own Milky Way Galaxy.

Dutch astronomer Anthony Brown of Leiden University explains how the European Space Agency’s GAIA satellite is revolutionizing what we know about the Milky Way. This all-sky survey mission revisits each target 70 times over the course of the years-long mission to give astronomers a real 3D map of a large swath of our galaxy. The next big data drop is scheduled by year’s end.

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Extensive power outages and satellite blackouts that affect air travel and the internet are some of the potential consequences of massive solar storms. These storms are believed to be caused by the release of enormous amounts of stored magnetic energy due to changes in the magnetic field of the sun’s outer atmosphere—something that until now has eluded scientists’ direct measurement. Researchers believe this recent discovery could lead to better “space weather” forecasts in the future.

“We are becoming increasingly dependent on space-based systems that are sensitive to space weather. Earth-based networks and the electrical grid can be severely damaged if there is a large eruption,” says Tomas Brage, Professor of Mathematical Physics at Lund University in Sweden.

Solar flares are bursts of radiation and charged particles, and can cause on Earth if they are large enough. Currently, researchers focus on sunspots on the surface of the sun to predict possible eruptions. Another and more direct indication of increased would be changes in the much weaker of the outer solar atmosphere—the so-called Corona.

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