Rubin First Look Watch Party at Purdue University June 23, 2025

The release of the first images from the NSF–DOE Vera C. Rubin Observatory is right around the corner. This will mark the beginning of a new era in astronomy, and we invite you to take part.

Purdue University Physics and Astronomy invites you to the only official public watch party in Indiana, either in person or via stream. We welcome the public to the unveiling of these images and to learn how Purdue was involved in the formation of this state-of-the-art, land-based observatory.

Scroll down to the bottom of this page for the Event Schedule.

The event will begin at 11:00 AM on Monday, June 23, in the Lawson 1130 Commons at 305 N. University Street, West Lafayette, IN 47907. At noon, we will begin our expert panel and Q&A, and this will be livestreamed on the Purdue Physics and Astronomy's K-12 Outreach YouTube channel, Saturday Morning Astrophysics at Purdue. Light refreshments will be served throughout the event.

Parking passes will be good for any non-gated lot on campus. Attendees will need to provide their license plate numbers at the venue to register for parking.

Please register for the event using the link above if you plan to attend virtually or in person.

Rubin Observatory stands on Cerro Pachón in Chile against a sky full of star trails in this long exposure night sky image. Credit: Hernan Stockebrand

A Story Told in Two Parts

The Rubin First Look unveiling event is the primary feature of Rubin First Look Watch Parties and will include the reveal of the Rubin Observatory's first images. The main unveiling event will be held at 11:00 a.m. EDT on Monday, June 23rd, 2025, in the Fred Kavli Auditorium at the National Academy of Sciences Building. This portion will be livestreamed in Lawson at Purdue University.

Once this event concludes at noon on June 23rd, we will begin our Purdue public watch party to discuss what we all just witnessed on the official image unveiling. You'll hear from faculty, alumni, and students who have worked with the Rubin Observatory. You'll also hear how you can get involved in this project and use the data in your own astronomy projects.

Rubin Observatory August 2024. Credit: Rubin Observatory/NSF/AURA/A. Pizarro D.

What is the Rubin Observatory?

The NSF–DOE Vera C. Rubin Observatory is a collaborative project between the U.S. National Science Foundation (NSF) and the Department of Energy’s Office of Science. The Rubin Observatory is a state-of-the-art astronomy and astrophysics facility in Cerro Pachón in Chile. Named in honor of astronomer Vera Rubin, whose groundbreaking work provided compelling evidence for dark matter, the observatory is expected to see first light in 2025.

Rubin Observatory represents a new era in observational astronomy. From its innovative mirror design and ultra-sensitive camera to its rapid survey capability and powerful data systems, every component pushes the boundaries of what’s been done before.

At the heart of the observatory is the 8.4-meter Simonyi Survey Telescope, which will use the world’s largest digital camera, called the LSST Camera, to capture high-resolution images of the southern sky. Over the course of a decade, it will scan the sky every few nights, generating a dynamic, wide-field, time-lapse view of the universe. The Rubin Observatory will make the most comprehensive astronomical movie ever created.

This unprecedented dataset will enable discoveries across the cosmos. It will help track asteroids and observe distant supernovae to probe the fundamental nature of dark matter and dark energy, and perhaps uncover phenomena we haven’t yet imagined.

Why Purdue University?

Multiple faculty and students in the Physics and Astronomy Department at Purdue were involved throughout the process of Rubin Observatory's construction and the design of its scientific programs. During our event at Noon on June 23rd, 2025, we will dive into how members of Purdue University had a hand in making the world's largest digital camera ever constructed.

The Vera C. Rubin Observatory began as a vision in the early 1990s. That vision was a telescope powerful enough to unlock the mysteries of dark matter and explore the Universe in unprecedented detail. Designed to detect faint objects and short-lived cosmic events, it will catalog asteroids, reveal distant parts of our Solar System, and make vast amounts of data publicly available, opening the door for discoveries by both scientists and citizen astronomers.

Construction officially began in 2015 on Cerro Pachón in Chile, with global collaboration bringing together the observatory’s cutting-edge components, which include its 3,200-megapixel camera, massive mirrors, and advanced telescope mount. In 2019, the observatory was renamed to honor pioneering astronomer Vera C. Rubin, becoming the first major U.S. astronomy facility named after a woman. As construction nears completion, the observatory is entering the final testing phase, preparing to begin a 10-year sky survey that promises to transform our understanding of the cosmos.

LSST Camera Deputy Project Manager Travis Lange shines a flashlight into the LSST Camera. Credit: Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory

Panel Speakers for the Purdue Physics and Astronomy Rubin First Look Watch Party

Danny Milisavljevic

Danny Milisavljevic is an associate professor in the Purdue Physics and Astronomy Department. He started his research in astronomy as an undergraduate at McMaster University. He began his PhD research at Dartmouth College on the explosion dynamics and progenitor systems of supernovae, which he continues to do so today. Milisavljevic was one of the first astrophysicists to use the James Webb Space Telescope, the world’s largest and most powerful telescope ever launched into space.

John Peterson

John Peterson is an associate professor in the Purdue Physics and Astronomy Department. He played a significant role in running simulations for the Rubin Observatory over a decade ago. John found that the best way to simulate realistic astronomical images from the Rubin telescope is to painstakingly simulate photons one at a time with all of the relevant physics. This is encapsulated in a code called the photon simulator or PhoSim. (www.phosim.org)

Braden Garretson

Braden is a recent physics graduate from Purdue University, where he studied supernovae, which are explosions of massive stars, with Professor Milisavljevic. With the Rubin Observatory expected to discover hundreds of thousands of supernovae each year, astronomers face both an unprecedented opportunity and a major challenge. Garretson's work focuses on building tools to address that challenge, including REFITT, a system that predicts how supernovae will evolve and recommends the best targets for the extremely limited follow-up resources. Tools like this will help make the most of what Rubin offers and tackle big questions in supernova science.

John Banovetz

John was a PhD student at Purdue University from 2016 to 2022. His expertise is in proper motion analysis of supernova remnants to determine explosion centers and ages, and the reduction and analysis of optical and near-infrared photometry and spectroscopy.

Banovetz is now a postdoctoral researcher at Brookhaven National Lab, supporting the commissioning and data verification at the Rubin Observatory. He analyzes and supports the testing and operation of the LSST camera. This involves interacting on both the hardware and software of the camera in order to identify and mitigate sensor effects for the 205 CCD detectors on the camera. He is also involved with evaluating the data processing pipeline to ensure that the data products are of the highest quality. Banovetz will be joining us by video during the panel discussion.

Rubin Observatory’s telescope mount in March 2023. Credit: Rubin Observatory/AURA/DOE/NSF

Student moderators for the Purdue Physics and Astronomy Rubin First Look Watch Party

DANIELLE DICKINSON- Danielle is a fifth-year graduate student researching supernovae and supernova remnants. They are particularly interested in answering, “What do massive stars do before they explode?” Rubin will look deep into space and detect stars in the final throes of life, so Danielle looks forward to these new and exciting observations.

DYLAN CLAUDILL - Dylan earned his B.S. Physics degree and is an incoming graduate student in Physics and Astronomy at Purdue. He is currently studying the life and death of massive stars via supernova remnants. Dylan is especially excited about the opportunities for discovery with the upcoming Vera C. Rubin Observatory.

Danielle Dickinson and Dylan Caudill will open our portion of the Rubin First Watch Party at Noon. They are graduate students in the Purdue Physics and Astronomy Department and are part of Danny Milisavljevic's research group, The Time Domain Astronomy Research Group.

Don’t miss the buzz! Follow us for all the event excitement on our social media pages below!

Event Schedule

11:00 AM to Noon: First Look unveiling event starts via online stream.

40 minutes: podium speakers and image reveal

20 minutes: discussion and Q&A

12:00 PM to 1:00 PM: Purdue's public viewing party

Student moderators, Dylan Caudill and Danielle Dickinson, will introduce a 10-15 minute video (prerecorded) from John Peterson.

12:15 to 12:20 PM: Student moderators will discuss the Rubin Observatory and the ties with Purdue University.

12:20 PM: Student moderators will introduce our panel. Each panelist will present and speak.

  • Danny Milisavljevic
  • Braden Gatterson
  • John Banovetz (joining via livestream)
  • John Peterson (joining via livestream)

12:40 PM: Questions and answers from the audience for the panelists.

1:00 PM: Conclusion of the Purdue First Look Watch Party.

Rubin Observatory at sunset in May 2024. Credit: Olivier Bonin/SLAC National Accelerator Laboratory

Check back here for more information as it is released.

More information

NSF–DOE Vera C. Rubin Observatory is funded by the U.S. National Science Foundation ( NSF ) and the U.S. Department of Energy’s Office of Science ( DOE/SC ). Rubin Observatory is a Program of NSF NOIRLab, which, along with SLAC National Accelerator Laboratory, will jointly operate Rubin.

More details about the Vera C. Rubin Observatory can be found on their website.