A new study published in the prestigious journal Nature Astronomy on October 31, 2025, has uncovered a segmented decline in the occurrence rate of hot Jupiters with stellar age, providing the first clear evidence that these giant exoplanets form through multiple distinct mechanisms operating over vastly different timescales. The research, led by an international team using data from China's LAMOST and Europe's Gaia telescopes, also delivers precise constraints on stellar tidal dissipation, resolving long-standing questions about the orbital evolution of close-in planets.