Las Campanas Observations: Summer Solstice 2016

A wonderful spring changing to summer. Our desire for clear skies sent out with the last newsletter was rewarded with a spring season that suffered weather losses totalling only 7 nights out of the past 91. Days have also been clear and beautiful as shown below. As spring turns to summer in the...

Astronomy Battle Royale: Anthony Piro wins Scialog award

Anthony Piro, Hale Scholar in Theoretical Astrophysics at the Carnegie Observatories, won one of seven 2016 Scialog awards after three days of discussion, collaboration, and competition at a unique conference in Tucson, Arizona. The award was for a collaborative project that includes numerical...

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.