Carnegie astronomers preserve dark skies for generations

Fifty years ago, when the first international observatories were installed in Chile, light pollution seemed unthinkable due to the low population density and small size of villages and mining sites in the Atacama Desert. A few decades later, Chile’s economic growth has brought it to the brink of...

Letter from the Director: December 2018

Magellan telescope from the air
Dear Friends, As we approach the end of another calendar year, it's always nice to reflect on all that we have accomplished during the past twelve months. Looking back at some of our science highlights from 2018, I am immediately struck by the diversity of topics covered by our astronomers. From...

Calibrating cosmic mile markers

Pasadena, CA—New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding and the role dark ene

Postdoc Spotlight: Tom Holoien

We talked to Tom Holoien, a Carnegie Fellow since 2017, about finding dying stars and his unusual path to becoming an astronomer.

Letter from the Director: September 2018

Viscacha at sunset
Dear Friends, September is always an exciting time at The Observatories. This is the month each year when most of our new postdocs begin their positions at Carnegie. For those of you not familiar with the term, postdocs are young scientists who have completed their doctoral studies and are further...

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