But any alternative to dark matter likely requires new physics such as modified gravity or dark photons.

Yes the only reason I am not closing my X account is that Bluesky does not appear to allow discussion of gender critical issues

I always thought the R-word should be able to be used like “idiot” or “moron” — never to a disabled person but as a strong rebuke.

It’s good because candidates would need to campaign in most states and not just the few swing states

Like millions of others I use X as my primary social media account but I do not follow Lara Logan or other nutcases.