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Outer space with bubbles

Cosmological Tensions and Interactions Between Dark Matter and Dark Energy

Meng-Xiang Lin, Simon Fraser University

Six-panel sequence showing colorized simulations of star formation. Over time, swirling blue and yellow gas shapes evolve from a single star to the formation of a binary and then a five-star system. Distances are labeled in AU.

The First Stars: Formation, Properties, and Impact

Ralf Klessen, Heidelberg University

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.