Dr. Sarah Greenstreet: Vera C. Rubin Observatory | EXOQUEST Archives

EXOQUEST Archives: The science-based search for interstellar artifacts and the origins of the universe.

We interview Dr. Sarah Greenstreet regarding the NSF/DOE Vera C. Rubin Observatory and its mission to conduct the Legacy Survey of Space and Time (LSST). While traditional astronomy focuses on static images, the Rubin Observatory will produce a 10-year, high-definition "movie" of the universe, uncovering the dynamic and anomalous nature of our sky.

NOTE: This previously unreleased EXOQUEST interview with Dr. Sarah Greenstreet was taped late 2024, prior to Vera Rubin Observatory's first light, and 3I/ATLAS crossing our solar system.

We deep-dive into the HOW: exploring a 3,200-megapixel camera capable of resolving a golf ball from 15 miles away and a telescope mount assembly that moves 220 tons faster than a human can run. Dr. Greenstreet explains how this unprecedented data set will help identify the next 'Oumuamua or Borisov and potentially locate the theoretical Planet Nine.

KEY TOPICS COVERED:

The Hardware: The technical specifications of the world's largest digital camera and its three-mirror optical design.

Real-Time Discovery: How the system generates 10 million alerts per night, identifying any changes in the sky within 60 seconds.

Interstellar Interceptors: The European Space Agency (ESA) concept for a spacecraft waiting in "hibernation" to rendezvous with interstellar visitors.

Cosmic Census: Mapping 17 billion stars in the Milky Way and discovering 20 billion new galaxies.

The Unorthodox: Searching for Planet Nine and studying asteroids on "retrograde" orbits that defy standard solar system models.

Curious. Rigorous. Unafraid.

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00:00 – A 10-Year High-Definition Movie of the Universe
00:46 – Introduction to the NSF/DOE Vera C. Rubin Observatory
01:34 – Open Science: Worldwide Alerts within 60 Seconds
02:45 – The Largest Digital Camera Ever Built: 3,200 Megapixels
04:20 – Visual Resolution: Resolving a Golf Ball from 15 Miles
05:58 – Deep Space Focus: Galaxies as Point Sources
08:50 – Gravitational Lensing and the Discovery of 20 Billion New Galaxies
11:58 – Optical Design: The Unique Three-Mirror Compact System
15:35 – Speed and Precision: The Fastest Slewing Telescope of its Size
18:18 – Survey Cadence: Capturing the Southern Sky Every Three Days
21:16 – Cerro Pachón, Chile: Why Altitude Matters for Astronomical Data
23:37 – Mapping the Solar System: 5 Million New Asteroids and Comets
26:02 – Beyond Pluto: Exploring the Kuiper Belt and Oort Cloud
30:20 – How Planetary Systems Form: The Physics of Flat Discs
33:55 – Galactic Archeology: Mapping 17 Billion Stars in the Milky Way
36:12 – Transients, Dark Matter, and the Cosmic Web
39:35 – Defining Interstellar Objects: Trajectories from Other Stars
43:56 – Rubin vs. Pan-STARRS: Finding Fainter Interstellar Anomalies
46:55 – Comparing Interstellar Visitors: ‘Oumuamua vs. Borisov
51:58 – Comet Interceptor: The ESA Mission to Meet Interstellar Objects
55:25 – Retrograde Anomalies: The Asteroids That Orbit Backwards
58:24 – The Search for Planet Nine (Planet X)
01:02:40 – Establishing the Institutional Census of the Universe

#RubinObservatory #LSST #PlanetNine #InterstellarObjects #Oumuamua #SpaceArchive #Technosignatures #Astronomy