Gravitational Wave Background Discovered - Spacetime is Vibrating!

The Cosmic Gravitational Wave Background was discovered! Spacetime is vibrating with the constant thrum of gravitational waves from supermassive black hole binary systems (SMBHBs) but also possibly new physics from the Big Bang!

00:00 Introduction
02:02 Gravitational Waves Explained
03:53 Using Pulsar Timing Array to Detect Gravitational Waves
08:15 PTA Collaborations
09:10 How they know its the Gravitational Wave Background and not something else?
11:50 Final Parsec Problem?
12:54 Nearby SMBHBs?
13:29 New Physics from the Big Bang?

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Earth
14:44 Cosmic Strings?
16:24 No Anisotropy?
17:47 What's Next

[sheepwshotguns]

as an old forklift driver i wish i could have afforded a higher level education because this shit blows my mind. the detail, the coordination, the scale of the project, i feel like i really missed out. thank you to launch pad astronomy for being able to bring some of it down to my level so i can appreciate it.

[mechwarrior]

Wow, your videos get better each time! Such complex findings are presented in such a clear non-clickbaity manner, with pro-level graphics and fantastic presentation. Well done to the entire team, I'm off to your Patreon!

[aamontalto]

The science behind this work is astounding. Thank you for for making it accessible (and understandable) to me.

[DeamonIT]

Regardless of whether or not there is new physics, it is awesome to see how we can use the remnants of stars thousands of light years away to spot ripples in space time

[zlm]

You consistently have the best explanations and discussions. They are always easily accessible and deep enough to always be interesting.

[Voulltapher]

The video is very well done, thank you! I had read the NANOgrav abstract and understood a decent chunk, but this video gives me a much better understanding. This is wonderful education.

[blakes]

What an astounding measurement method. I had genuinely thought i wouldnt live to see such a profound discovery in space again in my lifetime. Maybe the golden era of astrophysics isnt over after all :)

[kagannasuhbeyoglu]

Great explanation, thanks LpA.
It seems we have a long way to go. Our understanding of the universe is changing as data comes from James Webb and Gravitational Wave Observatories.

[Ava]

Thanks for the clearest interpretation so far ⭐⭐⭐⭐⭐

[Amradar]

Very good clear build up explanation of difficult matter (and space-time). Thank you for providing this great content. Looking forward to the new James Webb content 😊

[drbachimanchi]

Current generation of students are lucky to have teachers like you available for free... mind-blowing sir

[genghisgalahad]

I have not been so keyed in while being relaxed enough to take in information and actually then be able to comprehend the breakdown and therefore appreciate the larger picture implications for the study of the Gravitational Wave Background. I especially like the part about using pulsars in galaxy-sized detectors and cosmic strings and not be taken out of it by the novelty, and therefore space out! Thank You, Christian Ready, for this wonderful new and kind exposition and audience friendly layout that also enhances our knowledge, curiosity and wonder! Truly a launchpad! And I imagine many of us did not need to feel openly nervous if we got that or not! We learned so much more than we expected to, I imagine, and that's all thanks to your friendly and concise and articulate explanation for us, the daily viewer, without losing the exciting rigor and articulation! Because we can always learn more if needed afterward about particulars rather than get right into the intimidating nitty gritty of say Lamborghini engine mechanics that might go over my head! I'm happy to say I'm happily learning! Thank you for meeting us where we are at! And moving our general cosmic knowledge forward!

[stayfrosty]

You really are capable of expressing incredibly complex subjects in a clear and comprehensible way. It's a very nice quality. Also, as someone pointed out in the comments, i cannot describe how much i like and respect the fact that you do not resort to clickbaits titles and similar things. I strongly believe that all the divulgators that go down that path they actuallys start doing more harm than good. In a period where everything is becoming as clickbait channels like yours are a beacons of light in a very dark universe!

So much information in such an Easy to understand way! Thanks So much!

[JenniferA]

Cheers for this… all your content is spot on interesting 👍👍👍

[TroyRubert]

I'm reminded of a quote from Karl Popper “If some discoveries follow our predictions, we will look on them with particular distrust”

[joedasilva]

You are ways making me more enthusiastic about astronomy.
I believe a day will come when we will b able to see the universe pictured by gravitational waves .

[ariochiv]

Hard to believe that was 8 years ago that LIGO announced that first detection.

[garyfilmer]

Love the cosmic super strings idea! Extremely good video, excellent presentation, thank you.

[rw]

I love the education and witty humor in your videos. You got yourself a bew subscriber 👍