Tiny satellites that photograph the entire planet, every day | Will Marshall

[@subhrajitnandi5447]

ISRO sent their 88 satellites on its 104 satellites launch world record.

[@sangeethnandakumar2534]

@Rogue Samurai 88 saatelites are put into exact multiple orbits while the rocket is at a speed of 27000Kmph in space

[@yourbuddy4676]

@Zetetic Astronomer Who are you trolling? It is SAD for you. It is just unbelievable that some people, like you, believes their own lies. You have my condolences.

[@AwardQueue]

use poor max payload rocket. just because of the cheap price then let your ISRO do it.

[@ullas176]

@@AwardQueue working any space in the world.

[@iMahesh-ji1bq]

@@AwardQueue then why is USA choosing ISRO over NASA for their recent sattelite launches??

[@Allnighter_boy]

And 7 years after this amazing presentation, the listing of Planet Labs is just around the corner. Congrats, Will. Ad Astra!

[@tahmed2176]

21 NSA workers got physically ill when he said "democratise access" to information.

[@grannysvids]

Big brother in the sky, they are watching you now!

[@beirirangu]

shame that most of the people that come here, with such wonderful things like this, don't come to give a talk, they come to give a lecture, and are surprised at the difference between the two

[@beirirangu]

***** in my opinion, a talk is where the speaker allows input into the speech and adjusts accordingly, like the audience clapping or booing, but in a lecture, they expect the audience to listen silently and obediently and for the record, it's not a binary, one or the other, it's more a scale with a casual conversation on one side and a drill Sargent's 'instructions' (for lack of better word) on the other

[@beirirangu]

***** I was talking more about the pauses and interruptions with the applause in the speech, knowing that most already know that they have to dumb down their speech to layman levels, because if you notice in his speech, he doesn't really know how to handle those moments and is really thrown off when they happen

[@littlestworkshop]

beirirangu Feedback in these talks is hard to predict for the speaker, especially applause and sometimes laughter, that's all it is.

[@littlestworkshop]

r2dxhate Your comment is quite ironic really, you "should" be discussing how this innovation will help humans conserve and track resources but instead you are chastising people for having the "wrong" conversation weeks ago.

[@r2dxhate]

you missed the point, you all did. if you were concentrating on how comfortable he looked when the audience made noise, or were wondering why a fuckin ted talk wasn't an open discussion with the audience, then you really got hung up on the wrong details after the video. jacque fresco has been talking about a resource based economy for years, but the idea relies on developing world wide systems that can track our resources in sharper and sharper detail. while some are afraid of invasion of privacy from sky cameras, i see it as a step towards managing our forests and ice caps and wild life. with the success of this project, cameras with more zoom and video instead of photo and different time indexes other than noon will soon follow. if there was a way to watch every hour of every day at any point on earth, we could track ocean life in real time without mounting tracking devices. even the japanese are beginning to side with ocean conservation. if we manage our resources correctly, we can all have sushi indefinitely.

[@brainmixture]

goosebumps at universal access. this is simply amazing.

[@musFuzZ]

*global

[@eletiy]

That makes me wonder how long it'll take Google to use this data or do something similar for Google Maps. Would be pretty awesome to have them updated daily.

[@jarkkoaitti287]

first thing that came into my mind was catching illegal logging operations

[@ThatShyGuyMatt]

This is awesome. It needs more attention.

[@TK-jl7hy]

Dove is a great name, suits the whole attitude of the team and invention. Your best invention was your example, keep going guys. First of many.

[@sangeethnandakumar2534]

ISRO help them put their 88 satellites into orbit

[@melexkrieger7254]

sĺr

[@kajahussain3365]

WOW! And the best part is they want to make the data open to all! :)

[@TheBarnster101]

This sounds like an excellent project, I am just a little worried about this creating even more space junk/debris orbiting the earth?

[@aapowilen5436]

I was thinking the same thing, hundreds of debris flying thousands of miles per second with no ways of deorbiting or general control. I don't feel it's a good idea to allow small companies to put their "prototypes" in orbit.

[@marsy8749]

no they deorbit in like 6 months

[@navan1087]

@@aapowilen5436 everything eventually fall back to earth only.Even satellites are falling back to earth.Periodically they fire fuel to reset there position.Thats why satellites have a life ,like 15 years once fuel run out they fall back to earth eventually.NASA is trying to make a technology that can refuel satellites.

[@aapowilen5436]

@@navan1087 Yes, I've changed my opinion. This comment was left 4 years ago. Surprised someone still found it

[@robgandy4550]

Yea, it was a simple solution, put it that way. And believe it or not, we all suggested, (Cause we knew it had a life in orbit); to bring it down. Basically, de-orbit burn was calculated in the lifetime. However, not all projects that I'm aware of, did this.

[@datmesay]

“We even sent satellites 🛰 just to test them” ! This sentence makes me wonder if there even is a legal hassle to launch things in space in the USA ! Here in France we do send satellites in space roughly on a monthly basis, however I am not sure how a start up in a garage in Kourou would get easily all the clearance to send a nano satellite “just for testing purpose” !

[@AnilArya51]

Space is owned by no one so no permission or permitted by some other country, maybe by India or China

[@swapanchowhan7352]

Can we access this dataset for our apps and application ?

[@geecollins4915]

Genius !!!!!!!!! Wow!!! AMAZING WORK!!!!👍🏾❤️

[@largestill]

This is absolutely amazing.

[@giribibek7009]

i would explore the change in the entire nation with their geographical geometry

[@asalad9666]

what a wonderful man

[@NeverBestStudio]

Really cool and innovative. Also can be used for global wifi!

[@DavOlek_ua]

no

[@NeverBestStudio]

@@DavOlek_ua who asked?

[@itspeekaboo]

How are you going to help farmers in fixed agriculture areas, to improve crop yields? Just curious

[@itspeekaboo]

@Heriberto Rojas Gonzalez Yes, but being this comment was a few years ago, I probably had the thought that our planet was warming due to climate change and even before then the general excepted science was and still is, as we continue to warm agriculture yields will decline.

[@itspeekaboo]

@Heriberto Rojas Gonzalez Nobody cares about global warming btw ..except people who make money of it.) Maybe the same reason why the WorldBank published papers backed with many other published papers are predicting numbers surpassing 500 + million displace persons by 2050-2060,if you had any sense you would also know the full implications that a further 3 degrees C will have globally by 2100,do you even understand/know what the face of our planet will look like given this rapid rise in temperature? Do you even understand what one northern cell would mean?

[@tammyleeder1176]

I love this!

[@chrille27]

Those people are heroes.

[@jnicolettebailey]

Will Marshall and company - we salute you ! Thank you !!

[@JonathanHartwig]

Can you imagine rapidly deployable networks of satellites like this that provide everything from imagery, weather, wifi and more- all deployed across ALL the planets for real-time interplanetary monitoring? Personally I want to know what the weather on Titan is right now. This Henry Ford model is a big step towards building other scalable space technologies.

[@vaxsoar3849]

This can be used against us in far too many ways. Regardless of the positive and good intentions, it will cause a lot of problems with privacy, and debris.

[@ClebyHerris]

Vaxsoar yeah space junk when they get decommissioned

[@yourbuddy4676]

Debris? Clean your house first.

[@cavereric]

I would be more interested in putting these tiny satellites around the Sun, asteroids, our moon, Mars, and all the other planets and moons in the solar system.

[@Vibranium603]

NASA has by now launched few cube sized satellites around Mars.

[@HenriZwols]

Does it make me a bad person if I said I'd use it to keep a close watch on the Russian military?

[@matijarmk]

it makes you naive ;)

[@marramsak]

I would use it to track black people so they dont get lost in the dark

[@elmo2you]

Not really, especially if you would also do the same for NATO troops and the Kiev supported militias as well. If you're only going to watch the Russian troops, you'd be just misguided and likely bored very quickly. The topic itself is very interesting though, especially from how nations like the USA and other NATO members (but also Russia and China) may react to request for data on what they consider to be matters of military (and therefore ultimately also national) security. Are these satellite images going to be scrubs for any military secrets? And if so, for any nation or just NATO ones? If not scrubbed, will a state consider you to be a security threat or even a potential enemy the moment you access material with military info on it? Thinks can get pretty dicey pretty quickly when paranoid military commanders realize that modern technology can “open source” what they considered to be resonably controlled information only years ago. Just some stuff to think about.

[@GURken]

Man, we've got bored now :) But we can play with your's military in tic tac toe at corn field ;)

[@prevedomedved]

we would move at night

[@DougBrennanWgtn]

Wondering why two launched at the same time and how do they stop them tumbling and stay stationary.

[@lorifilm]

Tiny rocket engines powered by solar panels :D

[@AS-yf4jr]

Reaction wheels

[@ElroyHarvey]

Amazing, i have a couple of questions though, if the satellites are not pointing in the correct direction do they have any way of turning themselves around to point at the earth or do they just rely on being released at the correct angle? Also with there being so many satellites do they pose a risk to other craft crashing into them? I'm sure i heard about there being a lot of "Space Junk" that causes a hazard to craft being in orbit at the minute i.e old decommissioned satellites, will these ultimately enter the earths atmosphere and burn up? I find it fascinating just how far we have come in terms of technology in a relatively short period of time.

[@chuckbryan4817]

Brilliant.

[@Scattertom]

Hey, I can see my house from here, and here it is yesterday! Wheeeeeee

[@m.d.h.1388]

I better stop picking my nose outside.

[@Visias-Games]

But can it see why kids love cinnamon toast crunch?

[@suruliraja6773]

Tenjamn I really love your question!

[@vigneshanand3348]

The Indian Space Research Organization launched 88 of their satellites in a single launch with 16 other satellites. 104 satellites in one launch.

[@maudepotvin8660]

Congratz ! Great talk and great project !

[@leerman22]

There's a basic principle about consumer electronics: it gets more powerful all the time and it gets cheaper all the time.

[@OperationAllOut]

Also speak about who placed your Satellite into orbit

[@TnEEn]

faith in humanity restored thank you for sharing your idea, creation, and data with the world

[@mercurym-7904]

its funny how there is no flat earthers here lol

[@garvingaynair7897]

Nerd

[@pongpatlemonz]

Super I can't wait

[@Sumanth_సుమంత్_Telangana]

wow Awesome Explanation dude ....

[@asalad3188]

Where is our full picture of the globe then?

[@momoz88]

The technology brings lot of opportunities, however, it raises a lot of privacy concerns.

[@gaveee]

what about a website or some kind of info on this

[@KODAWARIMUSIC]

I bet there's hundreds of these already up there...

[@manojkumarsarakar6600]

Thanks to indian space nd reasearch organization who launched your 88(total was 104 )sattelite in one go.

[@zacboyles1396]

How did they change the inclination to a polar orbit after launching from ISS? Was that just the graphic illustration, not the actual orbit?

[@twocyclediesel1280]

Flat earthers: biting their nails and repeating while rocking … “it’s all done in a pool, wake up sheep!!!”

[@jackgaulsfitnessvlog4802]

This is the future.Right here.

[@Mexicanadiense79]

Nifty! I wager it'll be helpful for meteorologists, as well.

[@derekonlinenow777]

Where can I find the pictures?

[@robgandy4550]

Its interesting, 5 years old, and no access now. Its still not available. Plus, cube sat's now are prettty typical. I remember being one of the engineers on one of the first IR imaging sat. We thought we'd change the world too. Kinda sad, that we have indeed changed the world, not for the better.

[@tor1302]

wrong. go to planet.com and sign up for the planet explorer trial and you will get access to the data since 5 years in a web app.

[@haveaniceday7950]

Are there any IR satellites with open source data? Why do you say you changed the world for the worse?

[@robgandy4550]

@@haveaniceday7950 As far as Free(ish) direct access to satelitte data, well, depends on you're familiarity with radio (You can download images from some weather sats, direct. Archived data may be another source. As far as changing it for the worse, No, our ideas were cool and exciting. The use of the information was in question.

[@haveaniceday7950]

Rob Gandy I take it the use of the information wasn't up to you? Might it have been a government who abused the data? Do you know of anyway to put an infrared "filter" on satellites images that are already in an archive or that are new but not infrared?

[@haveaniceday7950]

c0o0o0o0o0l I looked on the site and maybe I'm missing it but they don't seem to be offering open source access to their data. A free trial is NOT open source. And it looks like they are only serving big business and governments at that. I'm very disappointed, this talk was exciting, but doesn't appear to be truthful.

[@Bobby-lv2kr]

So how big rocket is required to send that tiny satellite in space?

[@mart6213]

It's send with the cargo of the ISS. No special rocket needed, just a little empty space in the cargo rocket of the International Space Station is what you need. That's why it's relatively low costed

[@Bobby-lv2kr]

I know that already What I was actually trying to ask, if one meant to only send this satellite then how big rocket is required?

[@mart6213]

B Bobby oef, that's a difficult question. The satellite is 10x10x30cm so the fairing must be bigger than that. You''ll need a couple of rocket engines, a big amount of fuel. I suppose the rocket will be about 13 meters tall and 3 meters in diameter. Do you agree?

[@Bobby-lv2kr]

Mart Yes I agree my friend and thanks for the info, unfortunately putting a satellite of this small size still requires a gigantic rocket Probably the dream of sending DIY satellites from the rooftop of one's house is still a century ahead

[@aniketyadav9838]

ISRO PSLV 104 satellites at once.

[@Lord_Baphomet_]

He just basically turned every countries imaging satellites(which there are thousands of) into space junk. This is beautiful and perfect because now we will be surveilled all day everyday lol....

[@groMMit1981]

Why so short for such a WOW talk

[@douglasherr4725]

The astronauts didn't take that photo, as they never went to the moon. They never left earth.

[@dr.dipankaradhya7469]

Great Job Will. Congrats Will and his devoted group for this project.Like you and many many other I am extremely hopeful of the benefits which mankind can derive from their development. Just a word of caution to ensure it not to fall in the hand of terrorist who has least concern about making this small planet more liveable to every creatures. Being a person working towards providing safe drinking water to the rural population and creating awareness of most optimum and thrifty use of water, I am interested to know whether it can help in identifying and assessing ground water reserves and its movement/flow?

[@guitarttimman]

What the public knows is very limited. The fact of the matter is satellite technology has been good enough to view people for many many years. As a child, as far back as 1969, I remember telling people I knew we were being watched. But, they all thought I was crazy, and if I uttered such a thing to my Father, then he'd beat the living crap out of me. However, now days, one can easily go on google earth and use the very VERY watered down version of the technology to get a great panoramic view of just about any neighborhood in the US. But, remember, as good as anyone thinks this is, it is nothing in comparison to what the government already had many many years ago!

[@animals42life8]

okay so what is the website to access all this data?

[@DavidKing-ux5rs]

on a perfect day you should be able to get a picture of one place every 12 hours? right

[@AlexLwowski]

Why does this talk have only 200.000 views?

[@lyubojnickname]

If they are scalable, do a network, not a circle. That's the only way u can get real-time constant update on what's happening

[@d_reeves1133]

Satellite are passive devices which orbit the earth so they have to move in circle

[@alwinleerling]

I wish Will Marshall good fortune in this endeavour. I am afraid he is going to need it. The current political, military and economic establishments can only see this project as a thread to the status quo in which they control access to this type of data. I believe a reaction will be inevitable. At a guess we will see the following pattern: 1) The establishment will try to find a legal infringement to force the project to shut down. 2) If this does not succeed personal attacks will ensue. (As this is an American company, it's owners will probably be portrait as unpatriotic, a favourite accusation of the American establishment). 3) As a last resort the company will be raided and shut down by either police or military depending which parts of the Patriot Act or Homeland Security Act will be used. The good news is that Planet Labs story and success is known and will most likely inspire others to follow. In the end the establishment will not be able to control the flood gates and the dam will break (please forgive the metaphor) Again I wish Mr Marshall all the best and I will be enjoying the images for as long as they are available.

[@gabrielalamberti5860]

10 years later they are going public.

[@MassDynamic]

i think the risks of breach of privacy are well worth a more reliable observation of Earth's weather. need more data on the path that the Earth's climate is heading

[@mikgus]

now give that data to Hans Rosling

[@mcreynoldsamy]

I hope they can use this in South American rainforested countries, Central Africa, Indonesian islands, and other remote, difficult-to-access places to help in curbing the illegal logging. I mean, that's still a problem! "Save the Rainforest" is still something to care about! (Similar note, maybe they can track illegal whaling ships? "Save the Whales!") Those governments and NGO's need all the advantages they can get, and the more information they have the more effective policy can be.

[@retschedetsche]

little brothers are watching us

[@JamieA242]

the images have too much fixed pattern noise.

[@mamatoshgupta]

so far as its fixed pattern, we have standard analytical image processing techniques at disposure to correct. IMHO.

[@nlamorte90]

I'm literally crying this is so freaking awesome and moving beyond words.

[@MassDynamic]

the way he says "garage" sounds weird. i learned to place emphasis on "ra" rather than "ga"

[@svetatsikoza]

Its a pity there is no way to ask the lecture questions through TED interface. I wonder how long all these things are supposed to be working and what will be with them after they stop working. What might happen if they meet another satellilte on their way and what this meeting might cause for people under the point of the meeting and around. How they send the information to the scientists? Might this transfer cause any problems for other stations or satellites and what can happen if they do cause the problems. This idea sounds really scary. It seems it is time to make holes and learn how to be hobbit if all this space flies will come to space without making all the risks equal zero.

[@QuantityEngineers]

Could the landslide at Oso have been predicted by seeing earth movements days or weeks in advance? What about earthquakes?

[@holleey]

"if you had access to images of the whole planet, every single day, what would you use it for?" i fear the majority of humans will use it for space-selfies....

[@brandondorman9755]

I would research the effects of greenhouse gasses on different ecosystems

[@norseaknothead]

Very cool technology. A tad on the intrusive side if it's that much better than the old stuff. I hear that the government can use the old stuff to read a license plate from space. I'm glad that I'm not important enough for them to take notice of me. Not sure how I'd feel about the whole world being able to see every thing I do in my backyard everyday though. Of course the average guy like me can't access those capabilities with Google earth. But this new stuff is going to be shared equally and universally with all people? Right. Okay. Not sure how I feel about all this except that I doubt that it's going to make very many things very much better in the short term.

[@MrDavidBFoster]

_"A tad on the intrusive side..."_ I've a feeling we ain't seen nothin' yet.

[@MarleneSTaylor]

Tiny steps every day. There's always the modern question of what happens with the knowledge we gain. At one time the Pythagorean theorem was hidden from every day people upon discovery. It was deemed too important for every day people. That society held back scientific advancement for around 1000 years. Yes, the government can use it, but so can we. And that's more important. What if we launched a rocket to the moon 1000 years before? Where would be now?

[@MrDavidBFoster]

Marlene Taylor _"What if we launched a rocket to the moon 1000 years before? Where would be now?"_ Well.. Assuming that we followed the path we are currently on, probably _extinct_. That guess is based on warnings currently being issued by the scientific community, and the apparent indifference thereto by the general populace; not on any "fear of progress" on my behalf.

[@MarleneSTaylor]

Why specifically do you say extinct? One can theorize both ways.

[@MrDavidBFoster]

Marlene Taylor You're right, no one can predict the future. However, the warnings being given (which I'm sure you've heard ad-nauseum) are about global warming, deforestation, pollution, etc... Some are calling this period in our earth's evolution "The 6th Great Mass Extinction", if only because of the number of species falling off the evolutionary tree on a daily basis. And the cause of _all_ these things can be whittled down to our ever-increasing population figures. Now I, unlike many others, _do not_ expect some great _mass awakening of consciousness_ to occur that will reverse this trend. That is too much to hope for. What I _do_ expect to happen eventually (as we will have no other recourse) is for mankind to fall under the proverbial _iron boot_.. And that is something we seem to be well on our way to accomplishing. And we will celebrate every minute of its coming, because we _love_ the technology that will make it possible; even though we currently do nothing but complain about the invasion of privacy. We'll get over that, trust me. We always do.

[@hemanthkumar7615]

What about security of countries?

[@RobertJohnson-nz3xm]

Awesome technology. Hello 1984!

[@OneProjectLead]

So they're launching 100 satellites into a polar orbit from the ISS? Um... No. Inclination of ~50 degrees. Won't see anything much north of London. The half-life until deorbit starting at ISS altitude is maybe 6 months. To keep 100 in orbit they'll have to continually launch 12/month. Does the ISS crew have the capacity to push out 12/month indefinitely? Those satellites don't look like they have thrusters, even if they inject directly from a rocket into polar orbit, there's no way they'll stay lined up.

[@zp883]

they did, this video is old so, in feb 2017, they launched 88 completing the dove constillation.

[@suruchis2726]

ISRO not ISS

[@drackar]

This terrifies me. Real time data on what you're doing in your own back yard for the entire planet. The potential for abuse of this is...massive. Then again, it's inevitable, and at least you're releasing the data publicly instead of keeping it completely private.

[@devins7457]

So you care more about if someone is watching your grass grow than people trying to help the world... there is no potential for abuse and it's not real time.

[@alwinleerling]

I understand your fear and agree the abuse potentiality. However, information in it self is not a threat, it is the use or abuse of information by humans which is the real issue. The important thing to note in this case is the fact that the data is available publicly. Privately owned information (either by a corporation, GO/NGO or private individual(s)) provides the owning party leverage or power against which no defence can be mounted through lack of information on the opposite side. I grant you that even publicly available information can be dangerous to individuals (celebrity stalking websites would be an obvious example) but as you rightly state, it's inevitable and I would understate my feelings on the subject by saying that I prefer to see this information in the hands of the public than in the hands of a select few. The reason why I do not share your fear is this. We grew up in a world where information was sparse. As such you can dedicate a lot of time analysing all information you manage to gather. The amount of data these satellites will generate is not sparse and as such it becomes impractical to analyse all of it. So in practice the data will either be summarised to manageable proportions or a subsection of the data is analysed to answer a specific query. I believe that the underlying issue in this case and similar cases involving massive amounts of detailed information (take a nations health records for instance) is that we move from a world of sparsity to a world of abundance in which our old theories are not valid any more. It's time to drop Keynes and come up with something new.

[@drackar]

Alwin Leerling Mostly correct, but you're drastically underestimating the utility of pattern matching software. Any number of parameters could be used to bring forth all sorts of data sets which would be to time consuming for the human eye to even identify.

[@devins7457]

Drackar You could always just wear a tinfoil hat if you're that scared.

[@alwinleerling]

Drackar Agree. This would fall under the second use I alluded to. However I see where I went wrong in my argument. You can analyse the complete dataset but only to answer a specific query which is known in advance. This would be done with pattern matching. Just looking at data to see if anything unusual comes to light without any idea what that could be would be impossible to capture in a filter using current technology. As an analogy I could use the following example. If I want to know something about my home town I can do a directed query on Google, Wikipedia etc using the name of my town as a filter. However imagine that I want to find Internet sites about topics that I might find interesting but I am not even aware that the topic exists. What do I type in the Google box? Find me interesting things I don't know about? This kind of analysis can only be done on a subsection of data provided the data is abundant in relation to the available resources for analysis. Another example is well known in the legal field. If one party holds a damaging document and must hand it over to the opposing party because of disclosure rules, a typical tactic is to flood the other side with documents in the hope that the other parties limited resources will prohibit that party to find the "smoking gun" in the mountain of paperwork. So, yes I agree with you the utility of pattern matching software is powerful. However all this power is irrelevant if you do not know the pattern to look for.

[@z0rdic99]

This will be good for surveillance against illegal doing. I wonder if this has a a live stream capability, so that it's easier to track those criminals.

[@Hanks011]

This system of observation should be around Mars and the Sun.

[@Destro7000]

Will it be ported into Google Earth daily though?

[@CubSATPH]

I have a question to that cube sats sir. and to all of you how long it would last in space 10 years or 20years? if we did nt small satellites makes too long its life span we can create a fleet of that and control the space soon as making for research and maybe space farm too?

[@DuckieThirteen]

Security is getting tighter

[@lefuturiste27]

wait a second... Why are you on an polar orbit whereas the iss is on a completely different orbit ?

[@TheKrupivnk]

So where is free data now?

[@MonkeyKong21]

you can't see stuff every day because clouds. also, urthecast has better resolution + video + they focus on points of interest

[@BurkeLCH]

I can't wait until we have video. Can you imagine watching protests or wild fires?

[@do34cat]

A wealth of information creates a poverty of attention. The negative outcome correlated to this new technology could also be quite catastrophic...

[@NikoxD93]

Cool I'll spy on the area 51 by watching it everyday, thank you very much

[@lexwill8929]

60 minutes brought me here.

[@nemanjat1096]

We must absorbe materials from space to increase the volume of our planet; instead of trying to inhabit other planets.

[@willemvandebeek]

1984 big brother is watching you...

[@grah55]

NO MORE OUTDOOR CRIME.

[@Lord_Baphomet_]

NSA: *maniacal laugh*

[@srinivaskari]

These satellites sound like they're surveillance satellites. But they could be used over a period of time to track changes in the shoreline to measure climate change and the melting of the glaciers,

[@paulp7501]

Wow, i'm so impressive, that what i have dreamed about a few years ago, and today it's possible. That just goes to show once dream comes true

[@ROHITKUMAR-ft2sv]

did isro launch these satellites ?

[@swarajkumar6426]

ROHIT KUMAR yes