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Solving the Mystery of 'Born Again' Stars

Natalie Gosnell has used Hubble Space Telescope to better understand why some stars aren’t evolving as predicted. These so-called 'blue stragglers' look hotter and bluer than they should for their advanced age. It's almost as if they were somehow reinvigorated to look much younger than they really are.

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.

Student Discovers Planet, Probes Demographics

High school senior Dominick Rowan is making discoveries about other worlds. Working with astronomer Stefano Meschiari, Rowan has helped to find a Jupiter-like planet and has calculated that this type of planet is relatively rare, occurring in three percent of stars overall. 

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.

Early Galaxies More Efficient at Making Stars

Research by Steven Finkelstein and colleagues using Hubble Space Telescope reveals that galaxies were more efficient at making stars when the universe was younger. The work explains his team’s recent discovery that there are a lot more bright, highly star-forming galaxies in the early universe than scientists previously thought.