Summer Student Program Expanded

Gathering for a photograph after the symposium where each student presented their research: [L-R] Dr. Gwen Rudie, Sandy Moak (Pasadena City College), Haley Fica (Barnard College), Nick Diao (Pomona College), Greta Zhong (Pomona College), Mason MacDougall (Caltech), Zoey Flynn (Caltech), and Sal Fu...

Las Campanas Observations: Spring Equinox 2016

The above photos were taken one day apart in October 2015, showing an incredible spring display of wildflowers near the Magellan enclosures, and the blanket of snow that covered the observatory the next morning. (Photo credit: Mark Phillips) As visiting astronomers will surely attest, the weather...

Reconciling dwarf galaxies with dark matter

Washington, DC— Dwarf galaxies are enigmas wrapped in riddles. Although they are the smallest galaxies, they represent some of the biggest mysteries about our universe.

The rise and fall of galaxy formation

Pasadena, CA—An international team of astronomers, including Carnegie’s Eric Persson, has charted the rise and fall of galaxies over 90 percent of cosmic history.

Surprise: Small Elliptical Galaxy Actually a Giant Disk

Pasadena, CA—Astronomers have believed since the 1960s that a galaxy dubbed UGC 1382 was a relatively boring, small elliptical galaxy. Ellipticals are the most common type of galaxy and lack the spiral structure of disks like the Milky Way we call home.

Tiny, ancient galaxy preserves record of catastrophic event

Pasadena, CA—The lightest few elements in the periodic table formed minutes after the Big Bang.  Heavier chemical elements are created by stars, either from nuclear fusion in their interiors or in catastrophic explosions.  However, scientists have disagre