LinuxQuestions.org - Exploring the Universe.

- General (https://www.linuxquestions.org/questions/general-10/)

- - Exploring the Universe. (https://www.linuxquestions.org/questions/general-10/exploring-the-universe-4175658807/)

Exploring the Universe.

Some recent exploring the universe/solar system/space programs.
Look at the playlist for info first.

The Planets

Code:

#Inner worlds

https://www.pbs.org/video/the-planets-inner-worlds-jhasvd/



https://ga.video.cdn.pbs.org/videos/nova/\

feee9afe-d82e-471f-979e-6995dc666d86/2000124412/\

hd-16x9-mezzanine-1080p/uvanu2zy_nova4612_r-16x9-1080p.m3u8



#Mars

https://www.pbs.org/video/the-planets-mars-qjisjr/



https://ga.video.cdn.pbs.org/videos/nova/\

d5cd654a-c21b-40f9-a6a0-c43a4ec3b344/2000124418/\

hd-16x9-mezzanine-1080p/qmqyy4oe_nova4613-16x9-1080p.m3u8



#Jupiter

https://www.pbs.org/video/the-planets-jupiter-dokro5/



https://ga.video.cdn.pbs.org/videos/nova/\

6f46930b-d050-4389-bc0c-4ad0cf979537/2000124421/\

hd-16x9-mezzanine-1080p/g3alppwg_nova4614-16x9-1080p.m3u8



#Saturn

https://www.pbs.org/video/the-planets-saturn-1cfbyg/



https://ga.video.cdn.pbs.org/videos/nova/\

70c21c0d-3fa5-4fe2-8f66-863941ebd701/2000124455/\

hd-16x9-mezzanine-1080p/flzzpeto_nova4615-16x9-1080p.m3u8



#Ice worlds

https://www.pbs.org/video/the-planets-ice-worlds-a6dvap/



https://ga.video.cdn.pbs.org/videos/nova/\

143f4f04-cb55-4ddd-b9bf-16e916384f97/2000124425/\

hd-16x9-mezzanine-1080p/lrbpqhro_nova4616-16x9-1080p.m3u8

Ancient skies

Code:

https://www.pbs.org/video/gods-and-monsters-aill5s/



https://ga.video.cdn.pbs.org/videos/ancient-skies/\

4b18a9df-b49e-4da0-9a08-620b12380622/2000123609/\

hd-16x9-mezzanine-1080p/endrxcws_ansk0101-16x9-1080p.m3u8



https://www.pbs.org/video/finding-the-center-23natv/



https://ga.video.cdn.pbs.org/videos/ancient-skies/\

66cd741a-60aa-4125-8a0f-b931f4097bc7/2000123694/\

hd-16x9-mezzanine-1080p/qjfq5q9e_ansk0102-16x9-1080p.m3u8



https://www.pbs.org/video/our-place-in-the-universe-5gniod/



https://ga.video.cdn.pbs.org/videos/ancient-skies/\

d2ab4eed-e8a2-45c6-a93a-0a44748f4b9d/2000125067/\

hd-16x9-mezzanine-1080p/hnasp3vy_ansk0103-16x9-1080p_097.m3u8

To catch a comet
800k 1200k 2500k

Code:

https://www.pbs.org/show/catch-comet/



https://ga.video.cdn.pbs.org/videos/catch-comet/\

1bb863d8-91da-48e5-a9b7-6c763e26d6bf/\

160135/hd-mezzanine-16x9/1010f871_tocc0000_update11_18_mezz16x9-16x9-mp4-1200k.mp4

The Farthest - Voyager in Space

Code:

https://www.pbs.org/video/the-farthest-voyager-in-space-qpbu4y/



https://ga.video.cdn.pbs.org/videos/farthest/\

1ceceb5b-2a1a-4eb6-bd29-5f36ab924875/2000004614/\

hd-16x9-mezzanine-1080p/eggwsyiz_favo0000-16x9-1080p_094.m3u8

Year in space
800k 1200k 2500k

Code:

https://www.pbs.org/video/year-space-year-space-full-episode/



https://ga.video.cdn.pbs.org/videos/year-space/\

7ea922e7-2af1-43be-afa7-0155b9c86c33/226437/\

hd-1080p-mezzanine-16x9/6e630040_yesp0000-16x9-mp4-1200k.mp4

Beyond year in space

Code:

https://www.pbs.org/video/beyond-a-year-in-space-iomf5t/



https://ga.video.cdn.pbs.org/videos/year-space/\

3a67c19a-0fac-408a-a404-30c90f0ae4d1/2000017143/\

hd-16x9-mezzanine-1080p/b3xv8k7n_byes0000-16x9-1080p.m3u8

Great list. Thanks for the effort to make the list and bring them to our attention.

Thanks teckk, cool links. I've been in love with Science, especially the Space Sciences, for almost as long as I can recall. Starting at age 6 my Uncle Bobby gave me astronomy books for Christmas and after the first one, his was the gift I longed for most and always opened first. So I know many of those links but a few are new to me and they are all quite fascinating.

So as not to merely be an "empty" thanks, here is one for you about the rapidly growing and incredibly promising field of MMA, and by that I don't mean the more obvious Mixed Martial Arts but instead I mean Multiple Messenger Astronomy. This term refers to bringing to bear a number of telescopes sensitive in wide-ranging bands of frequencies simoultaneously on an item and especially a cosmic event to "see" it in areas normally invisible to just the wave lengths our eyes can see - radio, infrared, gamma, xray and now Gravitational.

There are now a burgeoning number of videos on what has and what is happening with LIGO and it's companions and counterparts but due to a very recent event, not the initial windfall piece of good fortune of the 2 Black Holes merging 130,000,000 years ago whose gravity waves just a few years ago reached us, but a new event that by it's nature, 2 Neutron Stars merging, gave us lead time so many instruments could be trained on it as it unfolded. The data will be studied for years but a few things we already know for certain is that it was observed and confirmed by cross-checking the various and numerous scopes observing the same occurrences, the formation of heavier elements above iron, like platinum and gold in unimaginably vast quantities being formed and blasted out into the Cosmos at relativistic velocities.

Because of this we are in a much better position to understand how our solar system was formed and how we got here. Now, much more than that, the validity and power of Gravity Wave Astronomy has proven itself especially potent because it can see inside things and events and past the time when photons could flow and even form in the very early Universe. In short, we may finally, and relatively soon, be able to see all the way back to Big Bang.

Please forgive me for posting such a long video (it's over 3 hours long) but even a few minutes of it can be spellbinding. Also most people who have any interest in such things will get "recommended links" to shorter and possibly even newer than October 2017 but this one, because of it's length and large number on the experts panel in differing fields, gives the most complete understanding I've witnessed so far of this amazing new tool and it's combinations.

Anyway here it is. I hope you enjoy it. Thanks again.

https://www.youtube.com/watch?v=mtLPKYl4AHs

Very interesting.

Code:

[youtube] mtLPKYl4AHs: Downloading webpage

[youtube] format code  extension  resolution note

249          webm      audio only DASH audio  53k , opus @ 50k, 72.63MiB

250          webm      audio only DASH audio  78k , opus @ 70k, 86.14MiB

140          m4a        audio only DASH audio  139k , m4a_dash container, mp4a.40.2@128k, 183.12MiB

251          webm      audio only DASH audio  148k , opus @160k, 158.19MiB

160          mp4        256x144    144p  94k , avc1.4d400c, 30fps, video only, 42.38MiB

278          webm      256x144    144p  117k , webm container, vp9, 30fps, video only, 121.66MiB

133          mp4        426x240    240p  166k , avc1.4d4015, 30fps, video only, 74.22MiB

242          webm      426x240    240p  225k , vp9, 30fps, video only, 148.35MiB

134          mp4        640x360    360p  401k , avc1.4d401e, 30fps, video only, 182.08MiB

243          webm      640x360    360p  412k , vp9, 30fps, video only, 282.67MiB

244          webm      854x480    480p  769k , vp9, 30fps, video only, 475.86MiB

135          mp4        854x480    480p  902k , avc1.4d401f, 30fps, video only, 371.95MiB

247          webm      1280x720  720p 1525k , vp9, 30fps, video only, 1.02GiB

136          mp4        1280x720  720p 1985k , avc1.4d401f, 30fps, video only, 779.25MiB

248          webm      1920x1080  1080p 2659k , vp9, 30fps, video only, 2.08GiB

137          mp4        1920x1080  1080p 4028k , avc1.640028, 30fps, video only, 2.00GiB

43          webm      640x360    medium , vp8.0, vorbis@128k, 749.43MiB

18          mp4        640x360    medium  384k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 554.43MiB

22          mp4        1280x720  hd720  667k , avc1.64001F, mp4a.40.2@192k (44100Hz) (best)

I looked at these.
Format 18, 640x360 stream is only 554.43MiB. It is good quality, good enough to watch.
Format 135/140 is a little better and only (371.95 + 183.12 = 555.07)
Format 22 is 1280x720 hd720 667k ..mp4a.40.2@192k

Code:

wget --spider <realy long string from youtube-dl>

Resolving r6---sn-vgqsknee.googlevideo.com (r6---sn-vgqsknee.googlevideo.com)... 173.194.162.44, 2607:f8b0:4009:3d::c

Connecting to r6---sn-vgqsknee.googlevideo.com (r6---sn-vgqsknee.googlevideo.com)|173.194.162.44|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1008626032 (962M) [video/mp4]

Remote file exists.

Format 136 is 1280x720 720p 1985k 779.25MiB
Format 140 is mp4a.40.2@128k, 183.12MiB
779.25 + 183.12 = 962.37
So only 1 GB for a 03:21:29 video.

Thanks for the post. I'll watch that when I get a chance.
I scrape all of the nova, moon, space, cosmos, planets videos that they air on above TV channel. Even if I don't dload them, I still have the playlist info for them in a log.

Some of those as so interesting that I watch them 2 or 3 times.
My thought is, download once, play 3 times. Why waste bandwidth and power on the servers to download them repeatedly. And then you can transfer them to your little device without having to install one of their apps. I don't even have google play store running on my droid devices.

Quote:

Originally Posted by teckk (Post 6023988)

Format 136 is 1280x720 720p 1985k 779.25MiB
Format 140 is mp4a.40.2@128k, 183.12MiB
779.25 + 183.12 = 962.37
So only 1 GB for a 03:21:29 video.

yep, youtube et. al. are masters at compressing video.
avc1 is h264 apparently; with h265 it would be a few hundred MB less even!

Quote:

Some of those as so interesting that I watch them 2 or 3 times.
My thought is, download once, play 3 times. Why waste bandwidth and power on the servers to download them repeatedly. And then you can transfer them to your little device without having to install one of their apps. I don't even have google play store running on my droid devices.

same here.

There's a free little suite called "space engine" where you can explore space. It's not completely unscientific, either.
Plenty of youtube videos about it out there.

I think it's Windows only, though. Maybe wine can run it, modern wine anyway. I have not tried.
In any case, it's a neat little toy even if it's just to create awesome spacey screenshots and to induce that sense of scale of the universe to people.

Edit, not a bad summary of it:
https://www.youtube.com/watch?v=nq8YsgGghDc

Quote:

Originally Posted by Geist (Post 6035188)

My nephew and I love this app along with BeamNG.drive. :D