An international team has obtained unprecedented observations of a rare calcium-rich supernova.

A simple model explains a wide range of observations by describing a contest between galaxy halos and their central black holes that eventually turns off star formation.

Powell won a Ford Foundation Dissertation Fellowship to support her work as she completes her Ph.D. thesis on exoplanets.

A new analysis of white dwarf stars supports their role as a key source of carbon, an element crucial to all life, in the Milky Way and other galaxies.

A new study suggests that Pluto and other large Kuiper belt objects started out with liquid oceans which have been slowly freezing over time.

A new prototype telescope opens doors for future discoveries at the upcoming Cherenkov Telescope Array.

An accomplished astrophysicist, Jeltema is also a champion for diversity and a dedicated supporter of students at all levels.

An international team of astronomers has solved the decades-old mystery of the ‘missing matter’ long predicted to exist in the universe but never before detected.

Giant planets in our solar system and circling other stars have exotic clouds unlike anything on Earth, and the gas giants orbiting close to their stars—so called hot Jupiters—boast the most extreme.

The discovery by an international team of astronomers of a massive rotating disk galaxy, seen when the universe was only ten percent of its current age, challenges traditional models of galaxy formation.