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Solar Cells Used In Earth Satellites

Why Should We Launch Solar Panels Into Space

This episode of DNews is brought to you by Full Sail University. This week the Japanese Aerospace Exploration Agency announced it wants to get solar power from space. I'm having flashbacks to disasters from SimCity2000. Hello! I'm Trace. Thank you for watching DNews. Back in the 1960s, American aerospace engineer Peter Glaser proposed launching solar panels into space, and beaming the power they collect back to the surface for our use. Since the late 60s the idea has been in a holding pattern mainly because of the expense and worries about maintenance and equipment, but thanks.

To recent developments in solar panel tech the Japanese space firm JAXA says they can finally try it. The plan is ambitious at minimum and cost hasn't yet been calculated, BUT JAXA is determined, and they're not the only ones. The U.S. Naval Research Laboratory is also interested in spacebased solar. The reason everyone's looking up, is because that's where the sun sits! If we can put a satellite in orbit to collect the sun's rays BEFORE the atmosphere filters them out, and without the worry of a cloudy day, that would be rad. The JAXA Space Based Power System.

Or SBPS will orbit 22,400 miles up, and if done to their specs, would completely replace a nuclear power plant by producing 1 gigawatt of electricity enough to power halfamillion homes. Their plan uses a 10,000 metric ton system, which is. well pretty ridiculous. The largest rocket ever launched was the Saturn V it took our boys to the moon and could only lift about 130 metric tons. Once the power is gathered, a converter in space will convert the electricity into a microwave beam not like in your house, literally waves of energy that are.

On the micro scale. Microwaves can be converted from energy at 80 percent efficiency, which means there would be some loss, but it would be pretty damn efficient about 48 of the power collected would reach consumers. Which doesn't sound great, but it really is. To make sure the array is getting sunlight 24hours a day, JAXA plans to put mirrors on either side of the planet to reflect sunlight at the collector all the time. The Japanese are announcing their plan so far in advance in the hope other countries.

Will gather and help realize the dream of solar from space. Once created, it could provide clean, unlimited energy anywhere on the planet, regardless of remote location. Here's the kicker. It would cost about a trillion dollars. Which sounds like a lot, but it's like 125 bucks per person on the planet in 2030. And that's WAY more than you're paying doe your power bill. Not to mention oil wars and all the pollution, ecological damage, mining and drilling that goes with fossil fuels. We've got commenting areaaassss, check them out and type your feelings on spacebased.

Solar so we can all talk about it! None of this would be possible without computers to run the system, and we need people to write the computer programs. Full Sail University in Florida offers courses to help train tech professionals by blending code and realworld experience. Students of Full Sail have handson access to technology on their first day, get a discounted laptop and all the software they'll need to earn degrees in software, mobile and web development. To find out more and support the show go to fullsail.edudnews! Thanks.

NASA Inventions You Didnt Know They Created

Whenever NASA's budget comes up critics invariably ask what benefits the space program has provided to ordinary people. Quite a few as it turns out. In 1983 NASA's Infrared Astronomical Satellite measured the temperature of stars and planets by reading the infrared radiation emitted from them using advanced sensor. By 1991 the Diatek Corporation of San Diego introduced a new thermometer that could quickly measure people's body temperature by measuring the infrared energy admitted from their eardrums. In order to provide comfort and safety to astronauts during bumpy space flights, NASA developed the padding concept.

That can absorb extremely high levels of force and still return to its original shape. Those TempurPedic matresses use NASA's memory foam to provide their characteristic squishy softness. That technology has also been incorporated as safety devices in aircraft, cars and sporting equipment. In order to prevent astronauts visors from getting damaged by small pieces of debris on spacewalks, NASA invented a special carbon coating that decreases surface friction and therefore reduces scratching. NASA's technology for scratchresistant lenses was soon licensed by sun glass manufacturer Foster Grant and has been used by brands like.

RayBan since the late 1980's. Over its long history NASA has developed numerous innovations in robotics for use in space such as aiding in space station docking, carrying out maintenance and conducting experiments. NASA's innovations in robotics shock absorption and comfort materials have significantly contributed to advances in more functionally dynamic artificial limbs for humans and animals. In order to provide power to its numerous satellites and spacecraft without adding much weight, NASA developed single crystal silicon solar cells which provide up to 50 more power than conventional solar cells at a much lower cost.

Satellite imagery can aid development projects

Projects that target aid toward villages and rural areas in the developing world often face timeconsuming challenges, even at the most basic level of figuring out where the most appropriate sites are for pilot programs or deployment of new systems such as solarpower for regions that have no access to electricity. Timeconsuming field studies are needed to locate suitable sites. Now, a team of graduate students at MIT and data scientists have come up with a way of automating parts of that evaluation process, by developing a software that can identify.

Houses from readilyavailable satellite imagery. It will be saving considerable time by avoiding the need for sending teams from village to village. The Researchers focused on two initial projects, One in India and the other in Africa.And they say that their software solutions could be applied to many other kinds of projects and other regions. The first project was to select villages in subSaharan Africa for a program of unrestricted cash grants to help people in lowincome rural areas. The system adopted by the grantgiving agency was to target the poorest villages, selected by counting the percentage of houses.

With thatched roofs compared with those topped by more expensive metal roofs. The second project was selecting villages in rural parts of India for installation of microgrids to supply electricity from solar panels and batterystorage systems, and then figuring out the optimum sites for those panels and the most efficient network configuration for distributing that power. In both projects, the key first element is automating the task of figuring out where the buildings are within a satellite image. For this research, the team used two kinds of satellite imagery Google Earth, and commercial satellite imagery.

The process begins by having people examine the satellite images visually and pick out the houses. These manuallyselected examples are then entered in as training data for a machinelearning system. Then this Software can be used for determining what is a house and what isn't. In the upper part of this image, we can see the Original Satellite Image. In the lower part, we can see the image created by this new software. In this image, we can see many buildings highlighed in various colors while the nonbuiliding areas are shown in black.

How Do We See Things From Space

Earth observation satellites orbit between 111 miles and 1,243 miles above the surface. so HOW THE HECK can they spot the car in my driveway! Hey y'all, Trace here for your Weekly DNews Space Update! There's this amazing political commitment called the International Charter on Space and Major Disasters. The Charter was created after the UNISPACE III conference in 1999 as a framework for sharing of satellite data amongst member states in the case of disaster. Pretty much all of the satellite operating countries are members. China activated The Charter after the Malaysian Airlines Boeing.

777 disappeared. Once activated, member agencies determine which satellites can be tasked with shooting pictures of the area of interest, usually a location of a tsunami, earthquake and so on. This is the first time the Charter's been activated to hunt track down a missing airliner! Conspiracy theorists assume spy satellites can zoom in and read over your shoulder, but the Earth is real big y'all. Anyone who's used Google Earth knows this, you can spend days on there. But how does a thing 1200 miles a way make out a tiny airplane, or a car in.

My driveway Back in the day, the recently declassified Gambit and Hexagon American spy satellites used large format film dropped from space and developed on the ground. The chemical process of film is SUPER clear, but limited to the number of rolls of film blasted off with the satellite. Digital camera technology exists in part BECAUSE of the space program's want for digital images. Three companies GeoEye, DigitalGlobe and Spot Image employ about a dozen satellites just for ground imaging. Governments, agencies and private companies have their own cameraequipped satellites, but the specs are a secret. The GeoEye1 says.

They can capture 700million pixelspersecond with a black and white resolution of 16 inches per pixel. The most famous, Earthimaging satellites are the Keyhole series. They're probably the best, and some version has been orbiting for more than three decades. The KH satellite is basically a giant orbiting lens. They're like the Hubble Telescope, but instead of pointing at faraway galaxies, they're pointing at terrorists, enemies of the state, and that little red book you're reading in the park. HowStuffWorks says the KH series can use it's camera to see things as small as FIVE INCHES per pixel, so they can't tell WHAT book you're.

Reading, but they can see the book. When it comes to spotting VERY specific things, things get tough. The lenses and digital cameras inside the satellites have to point at the right place at the right time. So if you're worried someone is spying on you, don't be. The resources are hard enough to task already. Not to mention, all this doesn't mean JACK SQUAT without some SERIOUS data analysis. There are whole industries built around the analysis of the images and data from space. Think about it 700 megapixels every second is a lot of visual information, and computers.

Aren't great at picking out visual details. With regard to the Malaysia airline, NASA is looking through the archives of their satellite data to see if any equipment was over the area at relevant time. China's satellites spotted some debris on Sunday, but small pieces of debris in a constantly moving ocean are difficult to identify. So far no one has found anything. The Internet has been a game changer for this type of humancentric analysis. DigitalGlobe has made it's entire library of relevant photos available to help search for the missing airplane,.

Korea successfully launches new science satellite 3A 3A.

Koreas latest satellite is now successfully orbiting the Earth. Officials say. the satellite has made its first contact with Koreas ground station. The new satellite will help enable 24hour monitoring of the earths surface regardless of weather conditions. Kim Minji tells us more. The Korea Aerospace Research Institute confirmed that the Korea Multipurpose Satellite3A established radio contact with Koreas ground station Thursday afternoon. It made two previous radio communications and all of its solar panels have been deployed to generate power. The satellite also known as Arirang3A was launched just past 7 a.m. Korea time from Russias Yasny launch base.

It was sent into space on the Dnepr a Russian launch vehicle converted from a Sovietera intercontinental ballistic missile. The launch comes as Korea is aiming to make inroads into the global space industry. Satellite development around the world is ramping up. and Korea plans to develop its own launch vehicle for testing by 2019. Korean officials hope the Arirang3A will boost the countrys ability to monitor the earths surface. and complement the nations three other multipurpose satellites currently in space. Until now satellite development was led by the government. But this time private companies put a lot of effort into the making.

Where Do Satellites Go When They Die

What happens to satellites when they're no longer useful We can't shoot them down, so we've got to crash them SOMEWHERE! Greetings programs, Trace here for DNews. Did you see that lunar eclipse couple weeks ago Real pretty, right What you probably DIDN'T know, was during the eclipse a there was a plan to crash a dying satellite. NASA's Lunar Atmosphere and Dust Environment Explorer, or LADEE, was launched eight months ago with a hundredday lifespan. It's the size of a large refrigerator, and was sampling the thin atmosphere of our moon. But once its mission.

Ended, then what NASA scientists decided the best thing to do was CRASH IT INTO THE MOON. They set up the orbit before the lunar eclipse, in case LADEE didn't survive the lack of sunlight and extreme cold in the Earth's shadow. This is not the first moon crash we've had. LADEE is the newest, to join the growing space scrapyard on the far side of the moon. When the Ranger 4 lunar probe crashed due to computer failure, it became the first satellite to spend the rest of time on the far side of.

The moon. We've never landed anything over there, so it's just dead stuff. According to Space, there are six confirmed crashes on the far side of the moon. Five American sats and one 'lil fella from Japan but there could be more! India, Japan, the Soviet Union and the United States all lost or left bits of space junk orbiting our moon from past missions all of which could have crashed on the far side. If you include the FACING side of the moon, there's 71 different sites with leftover bits of equipment from.

Us, the Soviets, Japan, India, China, and the European Space Agency spanning the late 50s to this decade. We're not HURTING the moon, the far side has been pummelled with things far larger than LADEE, but is it wise to start a lunar landfill What else could we have done with old equipment It's not as if satellites biodegrade in space, so the most common plan with orbiters is to decay their orbit until they burn up in the atmosphere, or crash. Sometimes, like with most satellites around Earth, it works perfectly. But other times, like with Skylab in 1979,.

Giant chunks make it through the atmosphere and crash on the surface in Skylab's case parts were recovered in the Australian Outback. Earth and the Moon aren't the only planets under attack from human space junk. Mariner 10 has been orbiting the sun since it's mission ended in 1975. Messenger is planned to crash into Mercury when it's mission is completed. Venus has Soviet Venera probes all over it's surface. Mars is super popular, and tends to eats satellites as snacks. More missions have been attempted to Mars than anywhere else, with more failures. 25 missions from.

Earth to Mars have ended in failure, yikes. And that's just the inner planets. We've sent probes to every planet and many of their moons, with each of them crashing, continuing to orbit their targets, or, like Voyager heading out into deep space. Though lowflying satellites like GPS or surveillance satellites burn up, DirecTV and other communications sats fly MUCH higher. It's not feasible for them to get burned up, so instead the FCC requires those satellites be put into a graveyard orbit. It's basically an orbiting junkyard, high enough to be out of the way of newer satellites. They just. sort of. hang out.

There. Unless they explode of course. but that's another story. What SHOULD we be doing with these old satellites Are you worried about being smacked with one Share your fears with us down in the comments, guys and if you and your fellow humans have a great idea for how to safely recycle old satellites, tell us on Twitter atDNews or atTraceDominguez. When I think of what some of these satellites have done for mankind, taking pictures of the surface of venus, and getting upclose and personal with Saturn and Neptune I feel this amazing sense of wonder. Similar to how I feel with watching.

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