Vera Rubin Observatory with long exposure of stars tracing the sky. Credit: Hernan Stockebrand
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Tune in to unveiling of first images from the Vera C. Rubin Observatory and LSST

First Look event, to be livestreamed June 23, will reveal the first images from the Legacy Survey of Space and Time, an international project that includes Penn State
17 June 2025

At a live-streamed first look event, the first ultrahigh-definition images and videos from the U.S. National Science Foundation(NSF)–Department of Energy (DOE) Vera C. Rubin Observatory will be unveiled. Over the next decade, the observatory will conduct the Legacy Survey of Space and Time (LSST), to create an ultra-wide, ultra-high-definition time lapse record of the Universe.

“Penn State has been an LSST Member Institution since 2005, and our faculty have held roles on the LSST board, science advisory committee, and science collaborations,” said W. Niel Brandt, holder of the Eberly Family Chair in Astronomy and Astrophysics and professor of physics at Penn State and co-chair of the LSST Active Galactic Nuclei Science Collaboration. “Using the largest camera ever built, with an unusually wide field of view spanning about 45 times the size of the full moon on the sky, the Rubin Observatory will launch a new era in astronomy. This combination will allow us to better detect real-time changes in the sky as well as rare events.”

The first look event will take place on Monday, June 23, at 11:00 a.m. EDT. The celebration will be live streamed via YouTube in English and Spanish.

Using a 3,200-megapixel camera the size of a car, the Rubin Observatory—located on the Cerro Pachón mountaintop in Chile—will scan the entire visible southern sky every three to four nights. The sky will be imaged in six different filters covering the range from blue to near-infrared light. By stitching the resulting clips together, the LSST collaboration will produce the most detailed time-lapse view of the cosmos that has ever existed.

Image
image compilation taken by the Vera Rubin Observatory
This image unveiled at the first look event combines 678 separate images taken by NSF–DOE Vera C. Rubin Observatory in just over seven hours of observing time. Combining many images in this way clearly reveals otherwise faint or invisible details, such as the clouds of gas and dust that comprise the Trifid Nebula (top) and the Lagoon Nebula, which are several thousand light-years away from Earth. Credit: NSF–DOE Vera C. Rubin Observatory

Each night, the Rubin Observatory is expected to reveal a wealth of celestial information; for example, 10 million moving objects, supernovae, gamma-ray burst afterglows, and emission from millions of supermassive black holes. Because of the wide field of view, each object will be observed over 800 times over 10 years. Instead of researchers applying for time on telescopes to study a specific object, scientists in the LSST collaboration will have access to all the data.

“This effort is expected to produce about 20 terabytes of data each night, for a total of almost 60 petabytes,” said Donald Schneider, distinguished professor of Astronomy and Astrophysics, who is Penn State’s representative on the LSST-Discovery Alliance Institutional Board. “Using this vast amount of data, we can investigate questions ranging from Earth-crossing asteroids in our solar system, the structure of the Milky Way galaxy, the evolution of supermassive black holes, as well as the nature of dark matter and dark energy.”

Made from over 1100 images captured by NSF–DOE Vera C. Rubin Observatory, the video begins with a close-up of two galaxies then zooms out to reveal about 10 million galaxies. Those 10 million galaxies are roughly 0.05% of the approximately 20 billion galaxies Rubin Observatory will capture during its 10-year Legacy Survey of Space and Time. Credit: NSF–DOE Vera C. Rubin Observatory

Brandt discussed the many scientific questions that will be addressed by LSST in a talk during the Eberly College of Science’s 2023 Ashtekar Frontiers of Science lecture series, and a recording can be found on the college’s YouTube channel.  For additional information on LSST, contact Brandt at wnb3@psu.edu or Schneider at dps7@psu.edu.

The NSF–DOE Vera C. Rubin Observatory is jointly funded by the NSF and the DOE Office of Science. It is a joint program of NSF NOIRLab and SLAC National Accelerator Laboratory (SLAC), who cooperatively operate Rubin. The observatory is named after astronomer Vera Rubin, who played a pioneering role in the detection of dark matter.  

Hero image credit: Hernan Stockebrand

In about 10 hours of observations, the Rubin Observatory discovered 2104 never-before-seen asteroids in our Solar System. Annually, about 20,000 asteroids are discovered in total by all other ground and space-based observatories. Rubin Observatory alone will discover millions of new asteroids within the first two years of the LSST. Rubin will also be the most effective observatory at spotting interstellar objects passing through the Solar System. Credit: NSF–DOE Vera C. Rubin Observatory
Media Contacts
Niel Brandt
Eberly Family Chair Professor of Astronomy and Astrophysics, Professor of Physics
Donald Schneider
Distinguished Professor of Astronomy and Astrophysics