Archive for the ‘satellites’ category: Page 161
Sep 4, 2018
Ready for lift-off: first international guidelines for small spacecraft just published
Posted by Chiara Chiesa in categories: futurism, satellites
Space is all the rage, so it seems. The number of small spacecraft – including satellites – being manufactured has rocketed in recent years, and future forecasts are equally explosive. The first-ever internationally agreed requirements have just been published, enabling the industry to cruise even higher.
The small satellites industry is taking off. According to a recent report by SpaceWorks1), an aerospace company focused on delivering cutting-edge flight and space technologies, 2017 showed a 205 % increase in small satellite launches compared to 2016, with a record number still awaiting launch. What’s more, forecasts for future spacecraft production, often by new entrants to the industry, look equally celestial.
But producing these spacecraft involves some very specific requirements that newcomers to the market may not be aware of. To help harmonize the sector, ISO has just published the first-ever international technical specification for small spacecraft, which states the minimum requirements that every small spacecraft needs to comply with regardless of its mission.
Aug 30, 2018
This video is the third and final in a three-part series discussing global internet connectivity
Posted by Ankur Bargotra in categories: economics, internet, satellites
Satellite Constellations to Bring Global Internet Coverage (SpaceX, OneWeb, Boeing,…):
In this video, we’ll be discussing global internet connectivity initiatives based in space, more specifically – low and mid-Earth orbit through the use of satellite constellations.
[0:35–2:30] Starting off we’ll discuss how these satellites will communicate with the ground and the internet providing satellites from Iridium and ViaSat, that act as a proof of concept and validate satellites as a means for internet connectivity.
Aug 22, 2018
Lift off for British Aeolus weather satellite which promises to end Michael Fish style gaffes
Posted by Genevieve Klien in category: satellites
The world just became a little bit safer tonight as Europe’s groundbreaking wind-monitoring satellite finally blasted into orbit — ridding the world of Michael Fish moments.
At exactly 10.20 BST the Jupiter mission control centre in French Guiana, South America, gave the final green light for lift-off following a nail-biting week which saw the launch delayed by 24 hours- ironically because of strong winds.
But with the name Aeolus, it was never going to be plain sailing for the European Space Agency’s latest Earth Observation satellite.
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Aug 16, 2018
US targets a megawatt laser by 2023 and then deployment in drones and satellites for hypersonic and ICBM defense
Posted by Klaus Baldauf in categories: drones, government, military, satellites
The US Congress wants the Missile Defense Agency (MDA) to rapidly develop and demonstrate a boost-phase ICBM (and hypersonic weapon) intercept capability as soon as practicable.
Space-based laser weapons technology is one of the options.
Aug 15, 2018
SpaceX seeks approval for Starlink internet tests on high-performance govt. planes
Posted by Klaus Baldauf in categories: internet, military, satellites
According to updated regulatory documents and recent Aviation Week interviews with the US Air Force Research Laboratory, it can be all but guaranteed that the USAF has begun working with SpaceX to test the feasibility of using the company’s planned Starlink satellite internet constellation for military communications purposes.
In early August, SpaceX updated regulatory documents required by the Federal Communications Commission (FCC) for the company to be permitted to experimental test its two prototype Starlink internet satellites, named Tintin A and B. Launched roughly six months ago as a copassenger on one of SpaceX’s own Falcon 9 rockets, the satellite duo has been quietly performing a broad range of tests on orbit, particularly focused on general satellite operations, orbital maneuvering with SpaceX’s own custom-built electric propulsion, and – most importantly – the experimental satellites’ cutting-edge communications capabilities.
The orbit histories of @SpaceX’s Tintin A/B Starlink prototype satellites, launched in February! Some thoroughly intriguing differences in behavior over the six months they’ve spent on-orbit. Data and visualizations generated by the lovely http://CalSky.com. pic.twitter.com/a8CfQaZJep
Aug 13, 2018
Solar-powered aircraft stays aloft for record-breaking 25 days
Posted by Genevieve Klien in categories: drones, internet, satellites, surveillance, sustainability
While Facebook and Google recently pulled the plug on their solar-powered internet drones, another company with a lot more experience is having success with the idea. Airbus announced that its solar-powered Zephyr S HAPS (high altitude pseudo-satellite) flew for 25 straight days, setting a time aloft record for any airplane, ever. It shattered the previous record of 14 days, marked by a previous prototype Zephyr aircraft.
The Zephyr flies on sun power alone at over 70,000 feet, an altitude that just a few aircraft like the Concorde and SR-71 Blackbird have reached. That’s well above any weather, and lets it perform reconnaissance, surveillance and communications/internet duties. “[It fills a] capability gap complimentary to satellites, UAVs and manned aircraft to provide persistent local satellite-like services,” Airbus said in a press release. A video of the takeoff (below) shows that it can be lifted and launched by hand. Once aloft, it can be operated for a fraction the cost of a satellite.
Continue reading “Solar-powered aircraft stays aloft for record-breaking 25 days” »
Aug 9, 2018
The fastest human-made object launches for the Sun this Saturday
Posted by Genevieve Klien in categories: particle physics, satellites
If the weather remains favorable and everything goes according to plan on August 11th, NASA is sending a spacecraft to the sun. The Parker Solar Probe will go closer to the massive ball of gas and plasma keeping our solar system together than any other spacecraft has gone before. It will brave extreme temperatures reaching up to 2,500 degrees Fahrenheit to collect data and images of the sun’s atmosphere called “corona.” The spacecraft will also reach speeds up to 430,000 mph, making it the fastest-ever human-made object. That’s nowhere near fast enough to reach Alpha Centauri within our lifetime — it has to travel around 7,000 years to reach the star closest to our sun — but fast enough to get from Philadelphia to DC in a second.
NASA plans to use the data it beams back to figure out how we can better prepare for solar winds, which are streams of charged particles emitted by the corona. Particularly strong winds could change satellites’ orbits, interfere with their instruments and even affect power grids here on Earth. If we want to head deeper into space in the future, we must first study how solar winds can affect our vehicles. Besides, we need to take a closer look at the star nearest to us if we want to learn more about the other stars in the universe. Finally, studying the sun could shed light on the origin of life on Earth, since it’s our source of light and heat.
Continue reading “The fastest human-made object launches for the Sun this Saturday” »
Aug 9, 2018
Made in Space believes its on-orbit manufactured power supply can save militaries money
Posted by Klaus Baldauf in categories: economics, satellites, solar power, sustainability
By allowing them to launch higher-power small satellites on smaller rockets, as opposed to the larger, and more expensive rockets that current technology requires.
Made in Space is developing power systems for small satellites that can provide up to 5 kW of solar power and is enabled by the company’s Archinaut on-orbit manufacturing and assembly technology. Current small satellites are typically constrained to 1 kW of power or less.
Made in Space CEO Andrew Rush pictured next to a subscale version of a solar array that the company can produce in space. The golden Mylar pieces are physical mockups of what would be solar blankets. This solar array is over 3 m tall. (Made in Space)