The short version
An accessible Perimeter Institute lecture on cosmology and evidence for dark matter.
From the HackerLinks archive
Cosmology Lecture by Katherine Mack
An accessible Perimeter Institute lecture on cosmology and evidence for dark matter.
At a glance:
First seen:2026-09-03
Last seen:2026-09-03
Times seen:1
Website:pirsa.org
Why it caught our attention
A commenter praised it as an excellent, accessible explanation of dark-matter evidence.
Where it surfaced on Hacker News
2026-09-03
“there's an excellent and accessible talk[1] freely available over at PIRSA where an astrophysicist goes through exactly what we know about the universe and how many different kinds of evidence all seem to point in a similar direction: dark matter exists.”
magicalhippo · recommendation
Direct HN comment
Biggest dark matter detector spots a single weird particle