How to Pull Images from Satellites in Orbit (NOAA 15,18,19 and METEOR M2)
ฝัง
- เผยแพร่เมื่อ 20 พ.ค. 2024
- Over the past 2 months, me and my friend Artem have been building antennas to receive signals from weather satellites as they pass overhead. This video chronicles our progress through this project and goes through some of the science involved in working with radio and receiving transmissions. We explore how dipoles work and how to build them, and how we built our final double cross antenna. We used an SDR (software defined radio) called a HackRF to do the work of interpreting the received signals and then decoded them with some special software. We pulled images from 4 satellites: NOAA 15, 18 and 19 as well as METEOR M2. The satellites broadcast immediately as they take the images and no images are stored, so we're likely the only ones on earth with these images.
Prefer written instructions? Check out our new instructable for more information on this process: www.instructables.com/id/Rece...
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Artem Litvinovich and some of his work:
TH-cam (theartlav): / val3tra
Sound camera: www.ribbonfarm.com/2016/06/29...
Thermal camera made from heat seeking missile parts: www.ribbonfarm.com/2016/05/12...
Other awesome stuff: orbides.org/
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Photo gallery: pg/thethough...
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Satellite tracking site: www.n2yo.com
Satellite tracking software (orbitron): www.stoff.pl/
Build a Helical (QFH) antenna: www.g4ilo.com/qfh.html
Building a double cross antenna: www.qsl.net/py4zbz/DCA.pdf
Full guide on how to do this: www.rtl-sdr.com/rtl-sdr-tutori... - วิทยาศาสตร์และเทคโนโลยี
Made an updated version of this video that looks at a much better satellite and gives images of the entire planet at once. Check it out:
th-cam.com/video/jGWFg7EDnyY/w-d-xo.html
Can you believe it that there are Flat-Earth people out there that say that satellites don't exist? And they claim that "satellites" are land-based transmitters put there secretly by the government to fool the people? Ridiculous! [Anyway, keep up the good work!]
The Thought Emporium dude this stuff is amazing. I want to make my own. Definitely putting this on my project list!
Dude, are you from brazil?? É brasileiro?? haha
Hope the sound was remixed!
Not the same video, but it’s amazing! (And the voice is cristal clear!!). Your video is very inspiring.
i just watched one of the most impressives things i've ever seen
how is this guy so COOL
Me too
TH-cam is full of knowledge 🤯
What video was it?
@@ryanjones7681 are you dumb
You sure haven't seen very much
I was wondering if it was possible to take pictures from a satellite and I found pure gold, this is amazing guys.
I've learned a lot from you, impressive!
Just a little hint:
When building wire antennas, start by rolling the wires between 2 sheets of e.g. MDF to get them straight.
3D print support structures to keep the shape.
You could have your antenna set up permanently and have a raspberry pi manage the downloading and decoding. The setup could even be portabalized.
I wonder if it's possible to have an Arduino connected to this setup too, controlling some servo motors mounted on the antenna, so it would track the satellite just as we do with telescopes... Could this improve the signal even more?
@@MatheusPratta Antenna tracking is definitely possible, but it shouldn't be necessary if you built an antenna of semi decent quality.
@@MatheusPratta check out the open source project named satNOGS! 😉
@@user-pv4cw3du2p thanks for recommending
How about 8 Parallellas?
I work for NOAA and now I feel like an idiot!!! I need to try some of this stuff out
LOL, was gonna post a url to your site, but here you are. You guys do a great job, although I don't like the new format recently introduced. I used to see a composite image of my region. Now I must select individual bands of much larger, more obscure region profile. More info, but TOO much for the layman like me. Fine problem to have, tho. HUGE FAN of NOAA!
www.swpc.noaa.gov/products/real-time-solar-wind-phase-ii
This is easily my new fave
Now you know how NASA feels when they play Kerbal Space Program, learning by doing is far more effective than sitting and listening. If you want to learn something new, go and do it.
Hahahaha, M34T, you're hilarious. Are you a flat earther, or?
Also, to note - Americans never used Chinese spacecraft to get to orbit, and the usage of the Soyuz capsule to get to the ISS isn't a bad thing, both Russia and the U.S., along with many other countries were involved in the construction of the ISS, an international project. Space shouldn't be about nationalism.
Hahahaha, you know NASA isn't just about "taking us to space and leading the way", right? Most of NASA's work is in Earth science, and monitoring weather. And, most U.S. companies, actually, use American companies to send up their satellites, usually with ULA.
NASA's budget goes into way more things than whatever it is that you define as "taking us to space and leading the way" - presumably, flashy launches of humans. NASA still continues to launch probes and missions to space, and if you, for some reason, don't care about robotic exploration, they are currently developing and testing multiple methods of launching humans into space, I'd honestly be surprised if you never heard of the Orion capsule or the SLS.
Making this some sort of weird nationalistic thing isn't helping anyone.
Great video. Thank you. I built a quadrifilar helix antenna for NOAA satellite reception about 10 years ago and it worked great. One radio project you might want to try is radio meteor detection. I run a system where I listen for meteors using a 20 meter dipole and monitor an out of range TV station. Meteors temporarily ionize the air creating a path that can cause the out of range station to come in for a moment. My system counts and collects data but it is fun to even just listen to the "ping" sounds when monitoring CW or SSB mode especially during a meteor shower.
That's an awesome way for amateurs to connect with space. Thanks so much!
10:00 "I stood out in the rain with the antenna." How could that end badly? LOL!
Years ago I pulled an image down from the ISS with SSTV decoding and it worked flawlessly. I have to try this with NOAA satellites now!
Way to go I studied RF in the military the information that you gave out was really good and spot on super impressed keep up the good work you’re the future of our world
Holy sh*t! I tought this was some clickbait video where you just explain how you could do it,but you actually made a real antenna to get the images. This is really amazing! 🙂🙂😀 Thanks for the quality content! I wish you the best!
For 15 minutes you kept my 👀 Widely Opened. 📡
Your work is amazing . Presentation very comprehensive and nice.
So Inspirational !!!
Keep posting and all the best in your further projects. My deep respect !!!
I'm part of the IEEE chapter of my university and we are trying to build a radio telescope right now. This video and the one on the radio telescope were really interesting and I actually learned a lot from them. I'm really glad that you provided written info on this project and I might have to try to contact you in the near future about the radio telescope you built. Thanks.
@The Thought Emporium I am a NOAA meteorologist here in the United States. Well done! Very informative and educational!
Thanks :)
I really love your organization's products, they save many, many lives!
I really love the forecast weather discussion, which can fill in the gaps when things are a bit... Complex. Especially when I was living in tornado alley.
How do you pull your images from these satellites?
One of the most inspiring videos ever! An awesome random recommendation for a channel.
for me too :))
Randomness and Google's AI; not that's what I'd call an oxymoron :3
Your videos are awesome. Thank you so much. Including your trial and error process is much appreciated.
I am always amazed at how many things I have no clue about in life while watching others doing them.
Come on Brazil!! 🇧🇷
Floripaaaa grande abraço.
Great work!!
I'm proud
That was a fantastic recommendation from TH-cam. Awesome videos, keep it up!
This is wildly good stuff especially the breakdown of how you got the satellite signal cleared up
Your video clearly describe how hard to get a project to work. Great video!!
Parabéns pelo trabalho de vocês e pela divulgação 👏🏼👏🏼
first time i had hit a bell. This is just awesome. keep it up
What a great video! Thanks for this - thanks for letting us take part on this experiment!
This seems like a valuable skill set for a prepper - I imagine after a disaster the satellites would still be transmitting so real-time satellite imagery would be extremely valuable
Hey there, just a quick advice...
Instead of wood use if possible MF protective electrical tubing. At least here in europe it is easy to optain in DIY shops and from electro resellers.
Wood, especially when wet acts as a conductor. The effect might seem small at first, but when you take in consideration that you are dealing with sub micro volt signals... every single bit counts. Oh and since we're on topic: with the tubes you can also easily build helical antennas. Just wrap your copper around it. It hast a much better suppression of enviromental noise and a far better gain.
You could even build an array of four Helicals with a bearable footprint and weight.
Contact your local hams, ARRL, DARC and what not. There are always people happy to help you get a hold on this hobby.
vy73
Hi, I'm 15 years old and I've been really interested in satellites over the last couple of weeks. I wasn't even aware that you could pull images from satellites like that. Thanks for showing me how to do it. I'm gonna buy all the required equipment and (hopefully) build a working setup over the next couple of months. Greetings from Germany!
AverageGeek: You don't need an HackRF, it is relatively expensive (when I remember my budget when I was 15, I would say prohibitively expensive). Buy a rtl-sdr instead, you can have it for under 15€ which allows you to buy the other stuff that you also need.
www.amazon.de/dp/B013Q94CT6
zvpunry hättest ja auch auf deutsch schreiben können xD
+Das Sahnebrot ich fühl mich ehrlich gesagt gerade ziemlich dumm, weil ich nicht sofort erkannt hab dass er auch deutscher ist :D
@Sahnebrot: Natürlich hätte ich auch auf deutsch antworten können, aber für andere (englischsprachige) Leser potentiell hilfreiche Kommentare schreibe ich bevorzugt in Englisch, speziell unter englischsprachigen Videos und unter englischsprachigen Kommentaren.
@AverageGeek: Kein Grund sich dumm zu fühlen. Das ist eher ein Indikator für mich, daß ich zu viel Text auf einmal geschrieben habe. Dadurch ist diese Information (letzte Zeile) unter gegangen. Ich hoffe trotzdem, daß mein erster Kommentar war hilfreich. Nach drei Wochen könntest Du vielleicht auch schon erste Empfangsversuche gemacht haben. ;-)
Wen interessiert dein verdammtes Alter?
Awesome. Thank you to you and your team. Keep your videos coming and I am always glad you do. Smarts and technology work well together
Engineer here. Wow all of you really outdid yourselves, congrats on your excelent feat !!!!!!!!
The EM propagation is slower in the antenna material and coax (copper, aluminum, etc) than c. See/research velocity factor. Cutting assuming c, may give slightly incorrect lengths.
Just found this. I actually built a WEFAX radio kit from MAPLIN Electronics back in the early 90s (the kit was called MapSat). It used a cross-dipole and I added a pre-amp to pick up these same NOAA and METEOR weather satallites. the audio went into a DAC box which had cards that slotted in which locked onto the signal parts for the selected format. This then sent signals out to an 8 pin output and passed into a computer via a printer port (or I/O card). I wrote machine code on an Amstrad CPC and Amiga to display them. Had to manually adjust the frequecy (around 135.5 Mhz) to account for doppler shift as the satellite passed over. Good times. Geostationary satellites are much more complicated. But a challenge.
Just a comment on this. We are talking about satellites. WEFAX is typically a transmission over HF or Short Wave frequencies. Many programs for satellite decoding will work on WEFAX, but that would be something different. The signal can sound a lot the same, but you would need a short wave receiver and long outside antenna to get the WEFAX signals.
+Steve Smith
Exactly. While one can in principle receive satellite imagery with WEFAX, the signals as you said do not come directly from satellites, but are re-broadcast via HF (so, from ground stations). In the early 90s I had great fun with WEFAX. I received mainly Sigwx charts from meteorological stations thousands of km away, using an FSK demodulador connected to the PC's audio card "line in" port and "PC HF Facsimile" software from company called SSC (which unfortunately no longer does business in this weather Rx niche). I consistently got very good, clear images.
You say opposite to Einstein's relativity conjecturing, then
Speed of light is Not supposed to be altered by the speed of its source.
dudee, this is one of the most interesting videos i've seen in a very long time, keep the good work! looking forward for other satellites
Very, very nice clear and concise explanations. This a very well done video. Thank you.
Hooly fucking shit... More, please... If only i knew this when i was a kid
uk...you are paranoid,you fool.
I might say this stuff wasn't available for general public when you were a kid, so no regrets to have.
Your channel is addicting to us science geeks!!!
Wow the depth in this video is amazing! Great job!! Now try and do this in the middle of the Atlantic ocean in the middle of the night, it's quite a thrill!!
For straighten wire: put one end of the wire in a vice and pull the other end of the wire really strong with a pincer. It straightens automatically in a perfect condition.
Next: How to pull images from russian spy satellites.
the standard Russian encryption algorithm is called Kuznyechik and is most likely used on all there spy satellites. good luck with that.
@@robertm1112 i could if i wanted to but i dont because im very busy watching utube vids
I bet the NSA is already in there. Probably corrupted the Russian satellites with the Air Force’s X-37..
Russian encryption system great. Hacker gets beamed with images of pierogi and borsch instead!
Next:
How to dodge russian nuke falling at house?
Bruh, im spanish and im very grateful about discovering your channel, it feels nice to see that many people shares the love for crazy experiments!
You wouldn't have learned any of this in school. Thanks man! Keep up the good work!
I guess these guys are not flat earthers. They look like they have brains!
Ha! Ha! I stumbled on your comment! Did you know that there are flat-earthers that claim that satellites don't exist? And they make the ridiculously lame statement that "satellites" are land-based transmitting antennas put there by the government to fool the public and inspired and run by the Satanic Illuminatti?
@@foureyedchick wait till you hear their explanations. Bunch of idiots!
What really makes me mad is when they say "the Bible says the earth is flat", when it does not
Craig Dohner you are correct and I wish ppl would stop lumping flat-earthers and Christians together.
@@coldburn5672 I am a Christian and I am not a flat-earther.
@@CraigDohner I know!
For the umbrella, have you thought about a silver (or gold) photography studio reflector umbrella?
@fountleroy tinkertoy What the freekin frak?!!
@D Brown This depends if the channel is made for free access. For example here in India, there is one government channel(DD national)which is free to access, so if you take wire from your TV and stick it out on your roof(even without dish) you will be able to access it freely! But that's different that most of the times nothing interesting is happening there.
@fountleroy tinkertoy xD
@@shubhampreetsingh8630 how?
@@TechKidShazil digital tv broadcasts
That's the coolest thing I've seen in years!
Awesome work guys. I am truly impressed
This is fucking awesome! Nice work guys! I'm jelly now and really want to replicate now! Can't wait to see the next vid!
Do it! it's such a simple project but with such awesome results. If you do end up replicating, this and building your own, there may be opportunities to collaborate on a big community project in the future. Glad you enjoyed :)
@@thethoughtemporium i did it with the cheap antenna that came with the sdr, just set the ends to 53.4 cm and connect it up
Very awesome! Also, Amateur Radio operators like myself can use voice communication through various communications satellites.
That's on of the most detailed video. Good job. I'm right behind you guys
I’ve done this few years ago with the 2nd style of antenna and it worked really nice after a little tweaking
"we tried to decode image with some s/w we found online" - any chance of sharing what you used?
12:07 "You can clearly see Buenos Aires" and points to Uruguay
Buenos Aires is that grey spot just below Uruguay
You rock!!! I been wondering about this for a while. Thank you for being awesome!!!
Legit. This is the best radio project! We can use those things that are the most important to our world.
wow. this was..janky AF, but such a cool Project and props for pulling through even though you had very limited Tools and all. Very cool video
I know you're into radio so maybe this isn't what you want, but if you point a camera on a tripod, at night, in the general direction of of the satellite and do a time exposure, the stars will trail but the satellites will show up as point sources. you could match this to your radio data.
Only for geostationary satellites. Other satellites more relatively fast.
And to add to what ABaumstumpf said, the LEO satellites relative speed will make them leave streaks in any image that is much longer than what the stars leave from the Earth's rotation.
@@ABaumstumpf there called POES polar orbiting enviormental sattelites, basically means they follow the sun
Absolutely amazed!!!
Great job guys!
I love this!!! Showing people what doesn't work as well is just as cool as show us what finally did work! - Easy sub!
Vocês são brasileiros? Se forem, é incrível verem pessoas como vocês fazendo algo tão intrincado e complexo, parabéns!
Flat Earth community ain't gonna like this HAHAHAHA
FEs be like: "this dude is working for NASA and getting paid to post these things", also "i'm too dumb to do this so i call it BS"
Iuri Scheidegger
Dude, I was just thinking the exact same thing.
So will showing the cost line of the USA, Will that work aganst them? Or was there more than that? I mean their case must be pretty weak if thats all it takes is fuzzy pic from space showing a cost line,
eric kinney
Flat earthers don’t believe satellites exist, so showing them pulling images from satellites would make them angry.
@@erickinney7482 FE think everything we have launched was thrown in the sea.
Showing them a satilite in orbit blows there little minds. Unfortunately... they give us humans more credit than we deserve thinking we can pull of the largest, most expensive and farthest reaching con in human history capable of deceiving everyone and masking their "true" reality nice n neat in our *made-up* maths.
Still haven't gotten a consistent answer for why though... Everything from religion to power plays.
love these kinds of RD videos! keep up the great work!
So much work! Great job guys
I'm gonna have to try this with my flat earther uncle. See what kinds of excuses he makes.
bbs, no satelittes!!
Antony Casanova troll
"Damn satellite sending fake cgi"
Any result yet?
how many spanks did you get from your uncle?
Anyone know if data from NOAA-20 will eventually be accessible once it's operational? It was just launched last weekend (currently named JPSS-1 until operational).
Tj Wiets, direct broadcast services continue to be available from all NOAA POES and GOES spacecraft. However, the low rate analog formats demonstrated in this video (for N15,18,19) are no longer produced in the newer spacecraft. The newer spacecraft (including the partner instruments on the NASA EOS and MetOp A/B spqcecraft) produce only High Rate ("digital") data that require the decoding tools demonstrated in the video. Search for "direct broadcast" if you want to learn more.
Oh, and it is accessible right now.
Fun Fact: NPOESS (the cancelled program that evolved into JPSS) was supposed to have an LRPT Transmission mode, much like the Russian Meteor 3M series has. But that was cut when it became JPSS.
@@bryanbreen7943 This will always be the case with digital broadcasts as by definition the broadcast is simply a number it is the interpretation of that number that gives the versatility. That fact actually reminds me of the time they tried to crack down on sharing the broken CSS key and finding other ways to encode a number became a meme. Turns out this works well both ways you can encode anything in a number and you can encode a number in pretty much anything too especially when you have a computer and anything it produces is literally just encoding something in a number of arbitrary length.
yeah i think its x-band like 7 ghz
This is amazing and I really want to try this! Thanks for the inspiration!
This is a great job! Thanks for sharing this!
Fantastic. I'm in awe.
(Although, it's a pity the technology doesn't exist to hold a small wooden pole steady, so you had to stand in the rain.)
LOL
8:44 That's a strange looking graph.
God this is the best thing I've discovered on the internet this decade. You link everything in the description too. You're fucking amazing dude.
Wow that's a really good stuff! Thank you for share with us.
I want this channel to blow up.
In a positive way :)
Get your Ham license and talk on LEO Sats!
Great simulation of field-antennae interaction at 2:20 and 2:50. Enjoyed that.
Lots of telecom engeneers with years of experience behind dont even understund what a polarized EM signal is.... Great job....congratulation
8:46 *T H I C C*
nice!
Amen
D A M N B O I T H A T S A T H I C C - A S S B O I
American Pichu My man
Did this 30 years ago with my Atari 800 and a XR2211 IC and old Radio Shack Realistic Patrolman SW-60 ..
Pica Delphon I remember having a magazine about doing that on the Atari!
I still have my Atari, tell me more...
Those were the days
Awesome project! Persistence paid off.
this is one of the best videos i seen on youtube! awseome work. so cool that you can do this at all!
6:51 a a wild guaraná aprears
Saudades do guaraná do Brasil :(
@@EkosFoxLeviathan Mais raro que o guaraná é o refrigerante "mineirinho" que é exclusivo de... Niterói/RJ ¯\_(ツ)_/¯
Luiz Claudio Eudes Corrêa rsrs mate couro é que é mineiro... e é “guaraná” rsrsrs
“Hacker man, he’s the most powerful hacker in the world”
Hahahahaha🐯
just amazing guys and gals, excellent topic and very interesting. It is great to see us little guys that dont have the power or resources find ways to get real truth on information using our smarts. Hats off to ya, i look forward to more great videos.
This is a very good video. It cleared up some things for me and I learned a lot. Ironically I woke wondering about the best antenna for this application. I was going to build a QHF until I saw this video.. I think I'll build a double cross antenna instead. I'm looking forward to trying this when my SDR-RTL v4 comes in the mail. Thanks
Pull data from China's sat orbiting the moon
That would be something to show
Yes
But you would need a bigger antenna for that
Hello,
With the moon in mind,
Where's a 24 live feed of the earth from the moon?
There's no way.
Where's unbroken dash cam or astronaut helmet footage of a real trip from earth's surface to space?
Never.
Search "satellites are on balloons". See videos.
(Also interesting "ISS HOAX")
"Nasa green screens" e.t.c also.
Best wishes
Fair says who
@@fair1831 you think that balloons can move at 27000 km/h?
I'm into ham radio and do digital work. Why didn''t this even cross my mind to try out???
Did you try it? How did it go?
I really like your channel, keep up the good work, thank you for the inspiration
SO COOL!!!! I hadn’t heard of SDR until about an hour ago. I am *so* going to buy me one of these receivers. Very glad I found this channel.
Hak5 did a series on SDR. It's worth a gander.
The great thing about software-defined radio (or software-defined anything) is that any typical desktop or laptop PC built or bought in the last decade has so much processing power that it can do just about anything that once required a dedicated chip or chipset. Not that dedicated chips aren't better or are no longer used but you'd be surprised what your PC could emulate with the correct software and relevant I/O device.
With a TV/radio dongle (£8), a midi keyboard (£45) and a blu-ray drive (£23) I can pick up and enjoy TV, radio and satellite broadcasts, I can make studio-sounding music (though I'm shit at it) or I can play Playstation 3 games.
Hell, with a decent graphics card and a VR headset you can now disappear into games like Skyrim and surround yourself with dragons, it's a far cry from the days I was typing code in BASIC on a ZX Spectrum...
50 people were very flat earthers ;)
cristhian nuñez damn your country must have a pretty messed up education system if you can be fooled by something like this
The fact that they had to follow the signal source as it moved across the sky AND it produced an image of a large portion of the United States tells us that satellites exist and move very fast. Even the highest flying drone or balloon would not be able to get a single image that large.
Plus, if you look at any airplane, you'll notice that its GPS antenna is located on the top of the airplane (in the direction of space) rather than on the bottom (in the direction of some "Earth-based tower").
JustWasted3HoursHere indeed they do you can see a good number of them on a clear sky with nothing more than your naked eyes. They look much better close up with binoculars/telescope though.
ROFL
It's 115 now. You roundworlders are losing fast! Oblong spheroids indeed...
All flat earthers should build one of these roflmao!
Wayne Johnson wait until we get GOES. we see a full globe. we want to coordinate with people around the world to build up a full 360 globe. the flat earthers are gonna be real mad. But that's for later ;)
Results would be inconclusive. You'd need to be far away to prove the globe, or else you're just custom tailoring a composite image to fit the globe mask.
I'm sure flat earthers believe that these "satellites" are actually just NASA broadcasted signals with fake images! :P
Strange Faction They are not experiencing those temperature extremes like you imagine because the molecular density in and above the thermosphere is so little that the satellite might not encounter molecules for the transfer of heat to take place for long periods of time. In other words, something in space only encounters heat when it comes in contact with a molecule, and that is rare is space.
FPV Angel What do Zero Gravity (parabolic) flights have to do with passengers in a commercial aircraft flying to different destinations around the world? And no unsupported claims please. You already made one in your last post by claiming “evidence would have to be faked as it always is”. I’m also curious to know what active field research you’re currently involved in concerning this subject.
This is wonderful. Keep up this good work
Excellent video! Excellent information! Thank you...
Music is wayyy to loud
Second that!
I didn't have a problem with the music
NO NOT AT ALL
THE MUSIC IS JUST PERFECT. HIS VOICE IS A LITTLE OLD
EDIT: LOW.
@Spooky Ghost I meant LOW LOL
music level was perfect
Just one ham operator could have saved you weeks of trial and error.
I agree that it would be faster and less troublesome but i woud not watch if it was only an aleatory exercise. Learning first hand is different than downloading información from others. Analog to how watching somebody test and experiment is much more interesting than seeing somebody pull together stuff.
Absolutely love this. Satellite was always elusive for me growing up. I was always curious, but couldn't figure out much. It looks like I have a weekend project to get around to now. lol ;)
This is just amazing, congrats on the job
...this low-tech dicking around with high tech systems reminds me about a documentary about how cubans dealth with economic sanctions by US. (Now that i think about it it reminds me of medicine to some degree too)
It has that David against goliath fell , isn't it?
Do you know where i can find the documentary?
But how do they orbit around the earth if it's so flat?
This channel must be a NASA front-just like all my neighbors.
sh*t where's my hat?!
Did you take your meds? It's Tuesday all ready uncle Travis. Lol
Awesome! Keep up the fantastic work!
Super fascinating. Thanks for supporting my entertainment!
I'm pretty sure you're the first people to take a selfie from space.
I had no idea how complected antennas were
Outstanding, more of this content please.
Wow, incredible! Well done!