Ah! Been waiting for this article. My imagination went wilder this time. I Imagined everything from mirror stars to mirror black holes. Though this also popped some curiosities in my head. They may sound a bit far fetched but I will list them anyway.

1st being if mirror starts have temperature like our starts, we can't detect them because mirror photons may not heat normal matter. But if a mirror star and a normal star collided would we notice any hear transfer at all (Though I know for hear transfer you need exchange of kinetic energy, which may not happen because mirror and conventional particles don't interact. But is there any possibility of it.

However, they do interact via gravity I assume. So when a star and mirror star are nearby pre collision they should create tides on surface of stars. Can we measure the tidal forces on far away visible stars? If say would it create something like random erratic dips in intensity of starlight. I mean can something like a tabby star which shows erractic 20℅ dip in light intensity be because of a mirror star around it.

Also, is there a possibility of binary star system with mirror and conventional star. In this case we should see a chaotic star movement without a binary partner to explain it, no?

Finally, say there are mirror white dawrfs. Do you think having more sensitive gravitational wave detector would be able to notice something of they see a mirror and non mirror white drawf interacting?