In a surprising discovery, astronomers have found a globular star cluster in the Andromeda galaxy that contains a record-breaking low amount of metals.

Jonathan Fortney has been awarded the 2020 Paolo Farinella Prize from the Europlanet Society for his contributions to the understanding of the structure, evolution, and atmospheric dynamics of giant planets.

The first clear confirmation of accretion disk formation in a tidal disruption event without x-ray emissions supports theoretical predictions.

Residences on Mt. Hamilton sustained some damage, but fire crews have so far been able to protect the observatory’s telescope domes and visitor center.

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.