On: ALICE finds first ever evidence of the antimatter ...

[benbayard]

To be more specific this is the first time we have detected hyper-antimatter of Helium where one of the quarks in the nucleus is an anti-strange quark (an anti-lambda from the article)

[westurner → benbayard]

Thank you all for corrections and clarifications.

I had confused Antimatter in particle theory (where there is no gravity) and Dark matter, which has no explanation in particle theory and maybe probably shouldn't be necessary for a unified model that describes n-body gravity at astrophysical and particle scales.

[westurner → westurner]

> [dark matter] has no explanation in particle theory

From https://news.ycombinator.com/item?id=42369294#42371561 :

> One theory of dark matter is that it's strange quark antimatter.