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Young 'Super-Neptune' Offers Clues to Close-in Exoplanets

A team led by Andrew Mann has confirmed the existence of a the youngest 'super-Neptune' yet — a planet about five times the size of Earth. The discovery lends unique insights into the origin of planetary system architectures.

Giant Magellan Telescope Breaks Ground in Chile

 McDonald Observatory leaders and supporters, along with representatives from an international group of partner universities and research institutions, are gathering on a remote mountaintop high in the Chilean Andes today to celebrate groundbreaking for the Giant Magellan Telescope.

Black Holes Lead to 'Red Geysers'

Niv Drory and partners from the Sloan Digitial Sky Survey have discovered a new class of galaxies called 'red geysers.'

HET dome

Upgraded Hobby-Eberly Telescope Sees First Light

After several years and a massive team effort, one of the world’s largest telescopes has opened its giant eye again. After a $25-million upgrade, the Hobby-Eberly Telescope now uses more of its primary mirror and has achieved 'first light' as the world’s third-largest optical telescope.

Discovering a Supernova Companion

Howie Marion's team found the best evidence yet for the type of binary star system that leads to a Type Ia supernova, improving understanding of violent star death and the use of supernovae to trace the history of the universe's expansion.