AHA! So the galaxy is flat. Flat earthers were just a few thousand light-years off.
William_Howard_Shaft on
Someone call Steve Mould. This looks exactly like the fucking chain in zero g.
The_wanderer96 on
Glum_Cheesecake9859 on
Are these due to the super-massive black hole at the center causing gravitational waves?
Go_Green_Ranger on
Gunz1995 on
That is interesting but how can they possibly know that the galaxy is exhibiting vertical waves? The size of the galaxy would take hundreds of thousands of years for us to notice any positional change. I am really interested in the process to determine this.
intherorrim on
waves are energy, right? How???
adrianathelatina on
When speaking about galaxies and black holes, the level of understanding that is needed I’m just not there yet 🤣😅
> An investigation carried out by the astrophysicists of the Instituto de Astrofísica de Canarias (IAC) Žofia Chrobáková, a doctoral student at the IAC and the University of La Laguna (ULL), and Martín López Corredoira, questions one of the most interesting findings about the dynamics of the Milky Way in recent years: the precession, or the wobble in the axis of rotation of the disc warp is incorrect. The results have just been published in The Astrophysical Journal.
> The Milky Way is a spiral galaxy, which means that it is composed, among other components, of a disc of stars, gas and dust, in which the spiral arms are contained. At first, it was thought that the disc was completely flat, but for some decades now it is known that the outermost part of the disc is distorted into what is called a “warp”: in one direction it is twisted upwards, and in the opposite direction downwards. The stars, the gas, and the dust are all warped, and so are not in the same plane as the extended inner part of the disc, and an axis perpendicular to the planes of the warp defines their rotation.
> In 2020, an investigation announced the detection of the precession of the warp of the Milky Way disc, which means that the deformation in this outer region is not static, but that just like a spinning top the orientation of its axis is itself rotating with time. Furthermore, these researchers found that it was quicker than the theories predicted, a cycle every 600-700 million years, some three times the time it takes the Sun to travel once round the centre of the Galaxy.
> Precession is not a phenomenon which occurs only in galaxies, it also happens to our planet. As well as its annual revolution around the Sun, and its rotation period of 24 hours, the axis of the Earth precesses, which implies that the celestial pole is not always close to the present pole star, but that (as an example) 14,000 years ago it was close to the star Vega.
> Now, a new study by Žofia Chrobáková and Martín López Corredoira has taken into account the variation of the amplitude of the warp with the ages of the stars. The study concludes that, using the warp of the old stars whose velocities have been measured, it is possible that the precession can disappear, or at least become slower than what is presently believed. To arrive at this result the researchers have used data from the Gaia Mission of the European Space Agency (ESA), analysing the positions and velocities of hundreds of millions of stars in the outer disc.
> “In previous studies it had not been noticed,” explains Žofia Chrobáková, a predoctoral researcher at the IAC and the first author of the article, “that the stars which are a few tens of millions of years old, such as the Cepheids, have a much larger warp than that of the stars visible with the Gaia mission, which are thousands of millions of years old.”
> “This does not necessarily mean that the warp does not precess at all, it could do so, but much more slowly, and we are probably unable to measure this motion until we obtain better data,” concludes Martín López Corredoira, and IAC researcher and co-author of the article.
Dakk85 on
This kind of shit just makes me think that even if we did ever somehow invent a way to travel at speeds to make exploring space realistic, actually navigating space seems pretty impossible
Lexinoz on
That would be all the wibbly wobbly timey wimey stuff.
jfcmofo on
I knew something felt off!
CulturalConstant2773 on
This explains my frequent seasickness, despite my living in Kansas.
Lee_yw on
The size of the universe is incomprehensible for our mind.
There are estimated 2 trillion galaxies in the observable universe which is part light has had time to reach us since the Big Bang.
Beyond that, the entire universe could contain many more galaxies possibly infinitely more if space itself is infinite.
A typical galaxy like the Milky Way contains 100 billion to 400 billion stars.
Observations from missions like Kepler and TESS show that most stars have planets. On average, each star has 1 to 2 planets and some have many more for example our Sun has 8 major ones.
1 in 5 Sun-like stars could have a planet in the habitable zone where liquid water might exist. That means there could be tens of billions of potentially habitable planets in our galaxy alone. In this instance we are talking about habitable for carbon life form. There could be non-carbon life existed out there!
We are so insignificant. Nothing but a specks of dust in the grand scale of the universe.
Deesparky36 on
Flat earth people out there ready to upgrade to a flat milkyway
Old-Custard-5665 on
When I was a kid there used to be 9 planets. Now there are 90 planets.
ThePerfectBonky on
scary
SeaworthinessSalt524 on
600 km/s isn’t that impressive when you take the scale of the universe into consideration. For example the speed of light is 300000km/s it takes 4,5 years for the light to travel between the solar system and Alpha centauri. So even at 600km/s you’d have to travel a few thousands years.
28 Comments
So we are all of us star surfers
https://i.redd.it/zczifivukbvf1.gif
Milky Way-ve?
Traveling 600kms relative to what?
No wonder I fell off the barstool!
The universe really freaks me out
AHA! So the galaxy is flat. Flat earthers were just a few thousand light-years off.
Someone call Steve Mould. This looks exactly like the fucking chain in zero g.
Are these due to the super-massive black hole at the center causing gravitational waves?
That is interesting but how can they possibly know that the galaxy is exhibiting vertical waves? The size of the galaxy would take hundreds of thousands of years for us to notice any positional change. I am really interested in the process to determine this.
waves are energy, right? How???
When speaking about galaxies and black holes, the level of understanding that is needed I’m just not there yet 🤣😅
[Credit](https://www.youtube.com/watch?v=ClAZDPWs9dY) to Gabriel Pérez Díaz, SMM (IAC) for making OP’s video.
[Here](https://phys.org/news/2021-05-milky.html) provides the following context:
> May 25, 2021
> by Instituto de Astrofísica de Canarias
> An investigation carried out by the astrophysicists of the Instituto de Astrofísica de Canarias (IAC) Žofia Chrobáková, a doctoral student at the IAC and the University of La Laguna (ULL), and Martín López Corredoira, questions one of the most interesting findings about the dynamics of the Milky Way in recent years: the precession, or the wobble in the axis of rotation of the disc warp is incorrect. The results have just been published in The Astrophysical Journal.
> The Milky Way is a spiral galaxy, which means that it is composed, among other components, of a disc of stars, gas and dust, in which the spiral arms are contained. At first, it was thought that the disc was completely flat, but for some decades now it is known that the outermost part of the disc is distorted into what is called a “warp”: in one direction it is twisted upwards, and in the opposite direction downwards. The stars, the gas, and the dust are all warped, and so are not in the same plane as the extended inner part of the disc, and an axis perpendicular to the planes of the warp defines their rotation.
> In 2020, an investigation announced the detection of the precession of the warp of the Milky Way disc, which means that the deformation in this outer region is not static, but that just like a spinning top the orientation of its axis is itself rotating with time. Furthermore, these researchers found that it was quicker than the theories predicted, a cycle every 600-700 million years, some three times the time it takes the Sun to travel once round the centre of the Galaxy.
> Precession is not a phenomenon which occurs only in galaxies, it also happens to our planet. As well as its annual revolution around the Sun, and its rotation period of 24 hours, the axis of the Earth precesses, which implies that the celestial pole is not always close to the present pole star, but that (as an example) 14,000 years ago it was close to the star Vega.
> Now, a new study by Žofia Chrobáková and Martín López Corredoira has taken into account the variation of the amplitude of the warp with the ages of the stars. The study concludes that, using the warp of the old stars whose velocities have been measured, it is possible that the precession can disappear, or at least become slower than what is presently believed. To arrive at this result the researchers have used data from the Gaia Mission of the European Space Agency (ESA), analysing the positions and velocities of hundreds of millions of stars in the outer disc.
> “In previous studies it had not been noticed,” explains Žofia Chrobáková, a predoctoral researcher at the IAC and the first author of the article, “that the stars which are a few tens of millions of years old, such as the Cepheids, have a much larger warp than that of the stars visible with the Gaia mission, which are thousands of millions of years old.”
> “This does not necessarily mean that the warp does not precess at all, it could do so, but much more slowly, and we are probably unable to measure this motion until we obtain better data,” concludes Martín López Corredoira, and IAC researcher and co-author of the article.
This kind of shit just makes me think that even if we did ever somehow invent a way to travel at speeds to make exploring space realistic, actually navigating space seems pretty impossible
That would be all the wibbly wobbly timey wimey stuff.
I knew something felt off!
This explains my frequent seasickness, despite my living in Kansas.
The size of the universe is incomprehensible for our mind.
There are estimated 2 trillion galaxies in the observable universe which is part light has had time to reach us since the Big Bang.
Beyond that, the entire universe could contain many more galaxies possibly infinitely more if space itself is infinite.
A typical galaxy like the Milky Way contains 100 billion to 400 billion stars.
Observations from missions like Kepler and TESS show that most stars have planets. On average, each star has 1 to 2 planets and some have many more for example our Sun has 8 major ones.
1 in 5 Sun-like stars could have a planet in the habitable zone where liquid water might exist. That means there could be tens of billions of potentially habitable planets in our galaxy alone. In this instance we are talking about habitable for carbon life form. There could be non-carbon life existed out there!
We are so insignificant. Nothing but a specks of dust in the grand scale of the universe.
Flat earth people out there ready to upgrade to a flat milkyway
When I was a kid there used to be 9 planets. Now there are 90 planets.
scary
600 km/s isn’t that impressive when you take the scale of the universe into consideration. For example the speed of light is 300000km/s it takes 4,5 years for the light to travel between the solar system and Alpha centauri. So even at 600km/s you’d have to travel a few thousands years.
[Nothing makes sense](https://youtube.com/shorts/Cm_bMlBs_QM?si=P3CXxaq643Pyg6RQ)
Now i know why nausea hits from time to time
We’re just cruisin
I cannot imagine a more absurd existence than this one.