Showing posts with label Satellite. Show all posts
Showing posts with label Satellite. Show all posts

NASA Funds ‘Thor Hammer’ Idea for Tossing Satellites



Humans can only dream of having the power of Thor, the Norse-inspired superhero who can whirl and throw his hammer at blinding speeds. A NASA-funded plan envisions rockets using a similar idea to hurl tiny satellites toward other planets.
The “NanoTHOR” project aims to connect small satellites with upper rocket stages by using miles-long tethers, so that the rocket stages can spin the satellites around like Thor’s hammer. NASA awarded the idea $100,000 from its Innovative Advanced Concepts program to begin running computer simulations and figure out a hardware design.
“Using a few tricks, we could get that system spinning so the rocket upper stage could swing the nanosatellite out of Earth’s orbit and on to the moon or an interplanetary trajectory,” said Robert Hoyt, CEO and chief scientist of Tethers Unlimited Inc.
The class of nanosatellites called CubeSats — tiny satellites the size of a loaf of bread — offer the possibility of replacing more expensive, traditional-size satellites. NASA, the U.S. military and commercial companies have all shown interest in launching several CubeSats at a time by having them piggyback on rocket launches for bigger spacecraft to reach Earth orbit.
Tethers Unlimited hopes to make CubeSats even more capable by turning them into interplanetary explorers. Such tiny satellites don’t carry their own fuel and rocket motors to escape from Earth’s orbit, but the tether plan would bypass the problem by using leftover propellant and momentum from upper rocket stages.
“In terms of our hardware it’s really just the high-strength tether on a spool,” Hoyt told InnovationNewsDaily. “What we need beyond that is to figure out how we can work with the rocket provider so that they can control their upper stage to help us get the system spun up and toss the payload.”
Hoyt and his colleagues have already spent years testing tethers made of high-strength fibers — such as Zylon or Spectra — typically found in bulletproof vests or similar applications. The current challenge is to figure out how to make a tether system that represents a cheaper option than simply attaching a small “kick” rocket motor to the CubeSat.
NASA’s recent funding won’t be enough to build a full tether system just yet, but Tethers Unlimited plans to use computer simulations to test out the idea in virtual space.
The NanoTHOR concept represents just one of two big NASA projects for Tethers Unlimited. The company also recently received a $100,000 award from the U.S. space agency to work on designs for using 3D printing in self-building spacecraft.
keep up with the newest technologies and contemplate about how these will be used in the future. On this blog I'll share my thoughts about the future of technology, based on the high Tech Road Show Blog inventions of today.
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New NASA Satellites Have Android Smartphones for Brains

NASA does some of the best work out of any public agency in the United States. Unfortunately, they are constantly defunded and must work within strict constraints. Even with the limitations, the agency was able to land on Mars with the Curiosity rover. Continuing the trend of getting the most out of a dollar, they’re now sending Android smartphones into space.

NASA recently revealed PhoneSat, a cheap satellite that’s powered by an Android smartphone। The idea behind PhoneSat was to see if NASA’s engineers could build a satellite using only off-the-shelf consumer components. The design was successful and they were able to keep costs to a minimum. The costs are so low that each PhoneSat will only cost $3,500.

Using smartphones has more benefits beyond cost for the next generation of satellites. NASA says that they will be able to easily update the next generation of PhoneSats as newer consumer-grade parts become available. This would save NASA time and money as they would not be required to create custom-made parts for their latest excursions into space.

As for the satellite itself, the PhoneSat will be housed inside of a cube that weighs less than four pounds. It also measures approximately four inches. The first iteration of the satellite used an HTC Nexus One while the second iteration uses a Samsung Nexus S. The satellite features an S band radio that allows NASA to control the satellite from Earth. If the phone were to ever stop working, the satellite also features a watchdog circuit that reboots the phone.

PhoneSat has only been tested in extreme environments so far, but has not actually made its way into space yet. The first PhoneSat prototype made its way into space via a high altitude balloon, but the actual space missions won’t take place until next year. The PhoneSat will be used to conduct heliophysics missions.

Interestingly enough, PhoneSat is not the first time Android has been to space. Google actually sent Android into space via weather balloon back in 2010 as part of a publicity stunt. Google’s weather balloon was also equipped with the Nexus S smartphone.

The Next Generation Of NASA Satellites Will Be Powered By Android

NASA is aiming to launch a line of small satellites called "PhoneSats" that are cheaper to make and easier to build than those it has produced in the past. To achieve this, engineers are using unmodified Android smartphones -- in one prototype, HTC's Nexus One, and in another, Samsung's Nexus S -- to perform many of a satellite's key functions.

As NASA explains on its website, these off-the-shelf smartphones "offer a wealth of capabilities needed for satellite systems, including fast processors, versatile operating systems, multiple miniature sensors, high-resolution cameras, GPS receivers and several radios."

"This approach allows engineers… keep up with the newest technologies and contemplate about how these will be used in the future। On this blog I'll share my thoughts about the future of technology, based on the high Tech Road Show Blog inventions of today.
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