Lucas Brown

So… Are Black Holes Dark Energy? In today's bite, we investigate a controversial paper from two years ago, tracing its origins and attempting to finally answer the question: are black holes dark energy?

From Lucas Brown @lucasb413.bsky.social : In today’s bite, we investigate a controversial paper from two years ago, tracing its origins and attempting to finally answer the question: are black holes dark energy? 🔭✨☄️
astrobites.org/2025/10/30/a...

If you read on, you’ll also be treated to this custom graphic depicting various black hole metrics as spherical cows:

I’ve been interested in this paper and the media hype around it for years now, but shoutout to @sevenrasmussen.com for making this post nearly a year ago which spurred on my desire to write about it.

Chat… Are Black Holes Dark Energy??

In my new longer-than-usual piece for @astrobites.bsky.social, I do a deep dive into the background of the controversial 2023 paper which claimed black holes expand in step with the universe and can therefore explain dark energy. 🧪

astrobites.org/2025/10/30/a...

Dark Matter Detectives Are Searching for Tiny Black Holes It was first proposed that black holes could form directly from the small, random density fluctuations inherent to the chaotic primordial universe. The studies from which the idea emerged — pioneered ...

Have you ever wondered how we might go about finding microscopic black holes from the dawn of time?

Check out my new article for @supercluster.com — my first published piece of science writing outside of @astrobites.bsky.social! ✨⚫️🔭

www.supercluster.com/editorial/da...

Mountains overlooking a baseball field in Anchorage, AK

Hello Anchorage! Looking forward to covering an awesome week of astrophysics at @aas.org’s Summer meeting over at @astrobites.bsky.social!

🏔️🪐🔭

Looking for Bright Primordial Black Holes as Dark Matter If extremely low-mass primordial black holes are lurking in our galaxy, they should glow white hot with Hawking radiation. Today's authors explore whether we can use this fact to tease out their prese...

From Lucas Brown: If extremely low-mass primordial black holes are lurking in our galaxy, they should glow white hot with Hawking radiation. Today’s authors explore whether we can use this fact to tease out their presence. 🔭✨
astrobites.org/2024/12/28/a...

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Check out what was big in our universe this past year with our 2024 Astrobites Wrapped! 🔭✨

500+ followers without a single post!

Just for some background, I'm a physics PhD student at UC Santa Cruz. I study gravitational waves, black holes, and other fun topics in theoretical astrophysics!

I'm also an author over at @astrobites.bsky.social!

More importantly here's Phoebe, my dog:

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go.bsky.app/5Ab7NLu