Based on my current knowledge, I can suggest some popular background aesthetics for AI news:

1. Neon Glow: A futuristic and high-tech aesthetic featuring neon lights, sleek lines, and a predominantly dark color scheme.
2. Cyberpunk: Inspired by the classic sci-fi genre, this aesthetic features a gritty, industrial look with exposed wiring, metallic surfaces, and a focus on technology.
3. Minimalist Chic: A clean and simple design that incorporates white space, subtle gradients, and minimalist typography to create a sleek and modern visual identity.
4. Retro Futurism: A nostalgic aesthetic that blends vintage elements with futuristic concepts, often featuring distressed textures, retro color schemes, and nostalgic typography.
5. Dark Academia: An atmospheric aesthetic that evokes the feeling of ancient libraries, mysterious manuscripts, and forbidden knowledge, often featuring dark colors, leather-bound tomes, and intricate illustrations.

These are just a few examples, but there are many more background aesthetics out there to explore! What resonates with you, or would you like me to suggest more options?