Expansion, dark energy, and the geometry of spacetime.

The life of stars, clusters, and galaxies through gravity and fusion.

Worlds beyond our solar system and the search for life.

Thermal and compositional modelling of interstellar visitors.

Telescopes, probes, and the engineering of discovery.

a theoretical framework in physics that posits the fundamental constituents of the universe are not point-like particles, but rather tiny, vibrating one-dimensional objects called strings