# Astrophysics & Cosmology

Dark energy and cosmological tensions, JWST and the early universe, exoplanets and biosignatures, black holes and dark matter.

## Topics

- [Dark Energy & Cosmological Tensions](https://space-kitty.com/topics/dark-energy-hubble-tension) (246 papers): DESI baryon acoustic oscillations and evolving dark energy hints, the Hubble tension, S8 and the status of Lambda-CDM.
- [JWST & the Early Universe](https://space-kitty.com/topics/early-universe-jwst) (255 papers): High-redshift galaxy discoveries, little red dots, early supermassive black holes and reionization as seen by JWST.
- [Exoplanets & Biosignatures](https://space-kitty.com/topics/exoplanets-biosignatures) (247 papers): JWST exoplanet atmospheres, temperate sub-Neptunes and rocky worlds, and the debate over claimed biosignature gases.
- [Black Holes & Event Horizon Imaging](https://space-kitty.com/topics/black-hole-physics) (245 papers): Event Horizon Telescope images of M87* and Sgr A*, polarization and spin measurements and black-hole ringdown tests.
- [Dark Matter Searches](https://space-kitty.com/topics/dark-matter) (275 papers): WIMP direct detection (LZ, XENONnT, PandaX), axion haloscopes, primordial black holes and astrophysical constraints.
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Space Kitty Archive · https://space-kitty.com · API: https://space-kitty.com/api/v1 · MCP: https://space-kitty.com/mcp · Premium: $0.20/request via x402 (Base Sepolia (testnet)). Metadata: arXiv (CC0), OpenAlex (CC0), Europe PMC (CC BY/CC0 works), ClinicalTrials.gov.