Janna Levin
Person on 4 sites
Astrophysicist at Barnard College; wrote Black Hole Blues and How the Universe Got Its Spots, and directs sciences at Pioneer Works.
-
5 facts on wiqqi (opens wiqqi.app)
Who people, organisations and podcasts are, and how they connect, with sources.
Updated 2026-11-01 -
2 channels on ppll (opens ppll.app)
Where public figures publish, and what they are on record saying.
Updated 2026-10-29 -
24 beliefs on korrents (opens korrents.com)
-
A black hole is its event horizon, not the matter crushed to a point at the centre. (opens korrents.com)
“The black hole is not the mass crushed to a point. The black hole is the event horizon. And the event horizon is really just a point in spacetime or a region at spacetime.”
-
Black holes are not the same thing as dead stars; they are a more general and more fundamental phenomenon than the end state of a star. (opens korrents.com)
“But then I think that there’s a confusion that dead stars, these very, very massive stars that die, are synonymous with the phenomenon of black hole. And it’s really not the case. Black holes are more general and more…”
-
Science is agnostic about what it is used for: the same physics that explained why stars shine also built the bomb. (opens korrents.com)
“And that’s what I mean by science is agnostic. Right? It’s the same technology overcoming a critical mass, igniting thermonuclear fusion.”
-
A black hole is its event horizon, not the matter crushed to a point at the centre. (opens korrents.com)
-
8 recommendations on rcmnd (opens rcmnd.app)
-
Mars trilogy (opens rcmnd.app)
“His seminal Mars trilogy is legendary and much loved.”
-
New York 2140 (opens rcmnd.app)
“I can also attest that our NYC audience whooped at the high-paced descriptions of a partially submerged Manhattan in New York 2140.”
-
The Ministry for the Future (opens rcmnd.app)
“I fully imagine that his Ministry for the Future—which opens with the most harrowing, unrelenting depiction of a deadly heatwave—will be the warning and plea needed for the world to actually create a Ministry for the…”
-
Mars trilogy (opens rcmnd.app)