Video Credit: P. Marenfeld & NOAO/AURA/NSF

Day into Night: Total Solar Eclipse passes over Cerro Tololo

On 2 July 2019, a total solar eclipse passed over Chile and Argentina. Through a stroke of astronomical luck, the path of totality crossed directly over the National Science Foundation’s (NSF) Cerro Tololo Inter-American Observatory (CTIO) located in the foothills of the Andes, 7,241 feet (2200 meters) above sea level in the Coquimbo Region of northern Chile. During two minutes of totality, starting at 4:38 p.m. ET, the day turned into night when the moon completely covered the sun.

View this spectacular event as seen from CTIO.

  • Three new imaging surveys pave the way for the upcoming the Dark Energy Spectroscopic Instrument (DESI), which will explore the role of dark energy in the expansion history of the Universe.

  • The June 2019 NOAO Newsletter is online and ready to download. It contains sections on Science Highlights, Community Science & Data, System Observing, and NOAO Operations & Staff.

  • During the July 2 solar eclipse students from the University of La Serena, with Juan Seguel (CTIO) & Rob Sparks (NOAO), will replicate Eddington’s experiment that confirmed Einstein’s Theory of Relativity.

  • New results from Hubble confirm that the Universe today is expanding faster than expected. The development relies on an earlier study carried out with the SMARTS 1.5m telescope at CTIO.

  • Using an artificial intelligence algorithm to sift through massive amounts of data from NASA’s Kepler Space Telescope, a team of astronomers, including NOAO astronomer Mark Everett, has discovered two new exoplanets.

  • Observations made with the Event Horizon Telescope have captured the first picture of a supermassive black hole. NOAO Astronomer Tod Lauer is a member of the EHT research team.

  • On April 1, the Mayall telescope at Kitt Peak emerged from hibernation and, for the first time, starlight poured through the six large lenses of the Dark Energy Spectroscopic Instrument (DESI).

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