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.
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.
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.
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.
Below the curved tail of Scorpius, deep in southern skies, Ara, the altar, sends its tendrils of smoke billowing into the Milky Way. Although faint, Ara has a long history. It probably originated in Sumeria about 5,500 years ago.