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A close-up image of the Sun shows a dramatic solar eruption with bright, swirling plasma and vivid orange, yellow, and red colors, illustrating intense solar activity and dynamic magnetic fields.

Current Sheets and Plasmoid Instability

Amitava Bhattacharjee, Princeton University

Colorful galaxy cluster in deep space with numerous stars, glowing clouds of purple and pink gas, and bright points of light scattered across a dark, star-filled background.

Particle Heating and Acceleration in Galaxy Clusters

Ellen Zweibel, University of Wisconsin-Madison

A swirling black hole surrounded by a bright, glowing accretion disk in deep space, with scattered stars and cosmic dust filling the dark background.

Electromagnetic and Gravitational Wave Signals from Merging Black Holes and Neutron Stars

Black hole-neutron star and neutron star-neutron star mergers are powerful emitters of gravitational waves, and can produce a wide range of bright electromagnetic transients. They also provide us with a remarkable environment to study nuclear interactions in the cold, dense core of neutron stars, and may significantly contribute to the production of many heavy elements whose origin remains unexplained.