Eburacum

Here is an interesting video from Manitoba. Almost certainly flares, but it would be nice to confirm that. https://in.mashable.com/science/78131/ufo-or-false-alarm-couple-baffled-after-spotting-mysterious-lights-in-canada At one point the two...

I agree, and that presumably means we are in an alternate without time travel, which is probably a good thing.

Niven (who wrote the Svetz stories) also discusses an interesting temporal conjecture - the Chronological Protection Conjecture; in any universe where time travel is invented the historical timeline keeps changing until time travel is never even...

If the universe allowed time travel, I'd expect a flood of refugees coming back from the Heat Death of the Universe to live in our more comfortable environment; this would happen exponentially (and instantly), causing the universe to collapse in...

The fact that the ends of the green beam are rounded is not necessarily proof that this is not a rolling shutter effect. In the Tom Scott video upthread the ends of the beam he is using are definitely tapered, rather than cutting off at right...

One thing that occurs to me is that the LASD helicopter was in some danger flying so near to a tethered balloon. One hopes they were taking appropriate safety measures.

Was this an anonymous post on Facebook or some other social media? Usually a clue that the video is CGI. A helicopter flying around a UAP would attract a lot more attention than a single post on social media.

The questions seem to assume that they are talking about a particular government. Some governments are more corrupt than others, so if you cherry-pick all the worst governments around the world you'll get a high score, but if you choose a...

Phil Plait nailed it in that article. The rock has several species of terrestrial diatoms embedded in it, and a few no-one has managed to identify; obviously the terrestrial diatoms came from Earth, so why should we expect that the unknown ones...

Yup, so much so that "diatoms" has almost become a dogwhistle, spoiling it for the real scientists. Since probably ~2013: In a detailed paper called "Fossil Diatoms In A New Carbonaceous Meteorite" that is appearing in the Journal of Cosmology...

That's correct - but most biologists who are looking for a shadow biosphere are looking for exotic microbes, rather than sentient beings.

My daughter (a PhD) had as a lecturer Milton Wainwright, a maverick microbiologist who has made many unusual claims about life-forms which came from space. Here's his IMDB page; he's been on Ancient Aliens, NASA' Unexplained files, and has...

Scooby Doo has had a few iterations since the original cartoon and in some of them the (ggg..) ghosts are real, which I feel is a betrayal of the ethos of the original.

Kappa Cassiopeiae (4000 ly) and Rho Cassiopeiae (8100 ly) are two of the most distant stars which are visible to the naked eye - both are unusually bright and large, and extraordinarily distant. From our viewpoint they are right next to Eta...

A common misperception. None of the visible stars we can see in the sky are anywhere near as distant as a million light years. Alpha Centauri is only four light years away, Sirius is eight - even a really distant star like Deneb is only 1500...