These galaxies rotate in opposite directions. Does it explain anything about the structure of the universe? (Analogy to low pressure spirals of earth's athmosphere in nothern and southern hemisphere).
"The galaxy collision will go on for several millions of years, leaving the galaxies completely altered in terms of their shapes."?? I don't know why astronomers keep saying things like that. NGC 2207 is 80 million light years away from us so what the Hubble is seeing happened 80 million years ago. The collision is ancient history and is well and truly over. Astronomers have yet to come to terms with the fact that using present tense to describe the universe is pointless because astronomers are actually studying ancient history. In reality, astronomers are historians.
Because it's pointless and pedantic to subtract the light travel time whenever you want to talk about events. I swear to god somebody always has to make this annoying "point" on every post like it's some deep thing. Astronomers are aware that it happened in the past, but they talk about it like it's happening now because it's more convenient and makes no difference in the end.
@@spinor. The job of an observer is to be accurate in reporting events and in science even more so. It's like a historian in 2019 saying the Germans ARE invading Poland because they saw a film of it from 1939. Don't forget there are entire theories about an expanding universe speeding up and it's based on observations that may be hundreds of millions, even billions of years out of date.
Very nice. In a video format, it's easy to slide between all 3 wavelengths. But now I'm curious as to why not all X-Ray emitting objects can be seen in Infrared? I'll figure it out. :)
![NGC 2207: Colliding Galaxies [Ultra HD]](/img/logo.svg){kind=logo}
