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Archive for the ‘satellites’ category: Page 165

Mar 2, 2018

This is what some of the earliest stars in the universe might have looked like

Posted by in category: satellites

Meanwhile in space: moon activity and satellites watching satellite launches.

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Mar 2, 2018

GPS Isn’t Very Secure. Here’s Why We Need A Backup

Posted by in categories: cybercrime/malcode, drones, military, mobile phones, satellites

That’s not a lot to you. If your watch is off by 13.7 microseconds, you’ll make it to your important meeting just fine. But it wasn’t so nice for the first-responders in Arizona, Pennsylvania, Connecticut, and Louisiana, whose GPS devices wouldn’t lock with satellites. Nor for the FAA ground transceivers that got fault reports. Nor the Spanish digital TV networks that had receiver issues. Nor the BBC digital radio listeners, whose British broadcast got disrupted. It caused about 12 hours of problems—none too huge, all annoying. But it was a solid case study for what can happen when GPS messes up.

The 24 satellites that keep GPS services running in the US aren’t especially secure; they’re vulnerable to screw-ups, or attacks of the cyber or corporeal kind. And as more countries get closer to having their own fully functional GPS networks, the threat to our own increases. Plus, GPS satellites don’t just enable location and navigation services: They also give ultra-accurate timing measurements to utility grid operators, stock exchanges, data centers, and cell networks. To mess them up is to mess those up. So private companies and the military are coming to terms with the consequences of a malfunction—and they’re working on backups.

The 2016 event was an accidental glitch with an easily identifiable cause—an oops. Harder to deal with are the gotchas. Jamming and spoofing, on a small scale, are both pretty cheap and easy. You can find YouTube videos of mischievous boys jamming drones, and when Pokemon GO users wanted to stay in their parents’ basements, they sent their own phones fake signals saying they were at the Paris mall. Which means countries, and organized hacking groups, definitely can mess with things on a larger scale. Someone can jam a GPS signal, blocking, say, a ship from receiving information from satellites. Or they can spoof a signal, sending a broadcast that looks like a legit hello from a GPS satellite but is actually a haha from the hacker next-door.

Continue reading “GPS Isn’t Very Secure. Here’s Why We Need A Backup” »

Mar 1, 2018

Next-Generation Weather Satellite Launches to Track Extreme Storms

Posted by in category: satellites

A powerful new weather satellite launched today (March 1) from Cape Canaveral Air Force Station in Florida, heading toward a perch above the eastern Pacific Ocean to monitor extreme weather as it develops.

The satellite, called GOES-S (Geostationary Operational Environmental Satellite-S), lifted off on ULA’s Atlas V rocket at 5:02 p.m. EST (2202 GMT).

The National Oceanic and Atmospheric Administration (NOAA) will operate GOES-S in partnership with NASA. The Lockheed Martin-built satellite will join GOES-East, currently in orbit, to provide a broad, high-definition view of weather on Earth. It is the second in a series of four advanced weather satellites that will reside in geostationary orbit — hanging in place over one spot on Earth as they orbit and the world turns. [GOES-S: NOAA’s Next-Gen Weather Satellite in Photos].

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Feb 26, 2018

Chinese satellite uses quantum cryptography for secure video conference between continents

Posted by in categories: encryption, quantum physics, satellites

Quantum cryptography has never been possible over long distances. But the first quantum communications satellite is rewriting the record books.

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    Feb 25, 2018

    Could Elon Musk Lose the Satellite Market — and Win the Solar System?

    Posted by in categories: Elon Musk, satellites, security

    When SpaceX launched the world’s biggest rocket ship on Feb. 6, that kind of seemed like a big deal — but not everyone is impressed.

    Previewing the SpaceX Falcon Heavy launch, The Wall Street Journal seemed perplexed. Yes, the Falcon Heavy is big, admitted the Journal. But as a “heavy-lift booster,” it said, it is a product designed to serve a market that’s suffering “significantly eroded commercial demand” and “uncertain commercial prospects.”

    The problem, as the Journal (correctly) pointed out, is that thanks to advances in rocketry, electronics, and materials technology, “both national security and corporate satellites continue to get smaller and lighter” (and cheaper).

    Continue reading “Could Elon Musk Lose the Satellite Market -- and Win the Solar System?” »

    Feb 22, 2018

    Made In Space Takes New Guinness World Record for Longest 3D Printed Part

    Posted by in categories: 3D printing, biotech/medical, robotics/AI, satellites

    In 2016, a new Guinness World Record was set for the largest object to be 3D printed in one piece. The ABS/carbon fiber composite tool was 3D printed in 30 hours, and measured 17.5 feet long, 5.5 feet wide, and 1.5 feet tall. It was about as long as an average sport utility vehicle. The part was inarguably an impressive accomplishment – but that long length cannot compare to what Made In Space just 3D printed.

    Made In Space is known for some pretty impressive accomplishments already. The company was responsible for the first 3D printer to be launched into space, and has since created a full Additive Manufacturing Facility (AMF) on the International Space station. Plenty of “firsts” have been set by the AMF as 3D printed tools, medical supplies, art and more have been 3D printed in space, the first of their kind. Now Made In Space has claimed the Guinness World Record for longest non-assembled 3D printed object, and it’s a lot longer than an SUV – it’s 37.7 meters, or 123 feet, 8.5 inches long.

    Continue reading “Made In Space Takes New Guinness World Record for Longest 3D Printed Part” »

    Feb 22, 2018

    Stealth space catapult startup SpinLaunch is raising $30M

    Posted by in categories: drones, satellites, sustainability

    What if instead of blasting cargo into space on a rocket, we could fling it into space using a catapult? That’s the big, possibly crazy, possibly genius idea behind SpinLaunch. It was secretly founded in 2014 by Jonathan Yaney, who built solar-powered drone startup Titan Aerospace and sold it to Google. Now TechCrunch has learned from three sources that SpinLaunch is raising a massive $30 million Series A to develop its catapult technology. And we’ve scored an interview with the founder after four years in stealth.

    Sources who’ve spoken to the SpinLaunch team tell me the idea is to create a much cheaper and sustainable way to get things like satellites from earth into space without chemical propellant. Using a catapult would sidestep the heavy fuel and expensive booster rockets used by companies like SpaceX and Blue Origin.

    SpinLaunch plans to use a centrifuge spinning at an incredible rate inside a vacuum that reduces friction. All that momentum is then harnessed to catapult a payload into space at speeds one source said could be around 3,000 miles per hour. With enough momentum, objects could be flung into space on their own. Alternatively, the catapult could provide some of the power needed with cargo being equipped with supplemental rockets necessary to leave earth’s atmosphere.

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    Feb 16, 2018

    Dubai space center is joining the race to Mars

    Posted by in category: satellites

    The United Arab Emirates plans to launch a satellite this year, send a probe to Mars by 2021 and put people on the planet by 2117.

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    Feb 13, 2018

    SpaceX to launch internet service test satellites soon

    Posted by in categories: Elon Musk, internet, satellites

    Elon Musk’s company has been working on launching satellite broadband for years. Its first test starts soon.

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    Feb 13, 2018

    SpaceX May Be Launching Its First Global Internet Satellites Next Week

    Posted by in categories: internet, satellites

    A recent Falcon 9 launch reportedly contained two prototype global internet satellites, bringing SpaceX closer to establishing the Starlink global network.

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