Simone Scaringi, Durham University, Durham, UK — June 1, 2026

High-cadence time-domain astronomy is revealing a dynamic Universe of accreting compact objects. In this colloquium, I will first discuss the universal nature of accretion-induced stochastic "flickering", demonstrating how this broad-band variability scales invariantly across different classes of compact objects. Building on this continuous mass transfer framework, I will explore the recently discovered "micronovae" transients, hypothesised to be localized thermonuclear runaways on magnetically confined white dwarfs. 

Alongside these explosive transients, time-domain follow-ups are also uncovering unexpected persistent structures. I will further present the recent discovery of a 3800-AU bow shock surrounding a magnetised, disk-less white dwarf, suggesting a powerful previously unrecognized continuous energy loss mechanism. I will conclude with an overview of the future time-domain landscape, highlighting the initiative of the Time Domain Telescope (TDT) and its critical role in spectroscopically surveying the dynamic sky.