Colloquium

The present-day population of supermassive black holes in low-mass galaxies offers a window into massive black hole formation in the early universe.

From exoplanets, with their surprising lack of spectral features, to Titan and its characteristic haze layer, numerous planetary atmospheres may possess photochemically produced particles of "haze".

Galaxies process the raw materials of the universe. Thus, studying the stars in galaxies and their histories gives us an insight into how the universe has changed with time, how galaxies likely formed, and how they will evolve.

Recent observations of binary black hole and binary neutron star mergers have ignited interest in the formation and evolution of compact-object binary systems.

One of NASA's primary goals is to observationally characterize exoplanet atmospheres, understand the chemical and physical processes of exoplanets and improve the understanding of the origins of exoplanetary systems.