> Ordinary matter as an explanation for galactic rotation curves has been dead for about 40 years.
I wasn't aware of that; I didn't know that galactic rotation had been known to be peculiar for such a long time.
I also wasn't aware that DM isn't just an example of "more stuff". I mean, I realise that DM can't be like other stuff; from what I've heard, it doesn't block light like other cosmic dust, and it doesn't seem to obey the same gravitational rules as other galactic stuff.
I have no standing to tell experts they're wrong! But every lawyer knows that once the person you're talking to knows you're a lawyer, they'll start arguing with you about law. Lawyers often keep schtum about their trade, for that reason. So here I am, in a forum where there are people that know stuff, and I don't think it's wrong to ask questions.
I wasn't aware of that; I didn't know that galactic rotation had been known to be peculiar for such a long time.
I also wasn't aware that DM isn't just an example of "more stuff". I mean, I realise that DM can't be like other stuff; from what I've heard, it doesn't block light like other cosmic dust, and it doesn't seem to obey the same gravitational rules as other galactic stuff.
I have no standing to tell experts they're wrong! But every lawyer knows that once the person you're talking to knows you're a lawyer, they'll start arguing with you about law. Lawyers often keep schtum about their trade, for that reason. So here I am, in a forum where there are people that know stuff, and I don't think it's wrong to ask questions.