This talk will review key direct imaging observations of young gas giant systems, focusing on the identification of protoplanets, the monitoring of accretion onto young planets, and the empirical constraints of the thermal and angular momentum properties of giant planets. Using the PDS 70 system, the only known planetary systems with two actively accreting planets, as a case study, I will illustrate how time-domain, high-contrast imaging can reveal critical details of gas giant formation. I will also highlight ongoing and upcoming James Webb Space Telescope programs that promise transformative insights into the mass growth and early evolution of giant planets.
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This talk will review key direct imaging observations of young gas giant systems, focusing on the identification of protoplanets, the monitoring of accretion onto young planets, and the empirical constraints of the thermal and angular momentum properties of giant planets. Using the PDS 70 system, the only known planetary systems with two actively accreting planets, as a case study, I will illustrate how time-domain, high-contrast imaging can reveal critical details of gas giant formation. I will also highlight ongoing and upcoming James Webb Space Telescope programs that promise transformative insights into the mass growth and early evolution of giant planets.