The Space Telescope Science Institute (STScI) is a multi-mission science operations center for NASA's flagship observatories, including the Hubble Space Telescope (HST) and the James Webb Space Telescope (JWST). Located on the Homewood campus of Johns Hopkins University in Baltimore, Maryland, STScI is operated by the Association of Universities for Research in Astronomy (AURA) for NASA. Its mission is to help humanity explore the universe with advanced space telescopes and ever-growing data archives. STScI staff conduct research, select, schedule, and execute science programs, calibrate and archive data, and disseminate information to the astronomical community and the public.
Serves as the primary science operations center for the Hubble Space Telescope and James Webb Space Telescope. Functions include mission planning, spacecraft operations, data processing and archiving (Mikulski Archive for Space Telescopes - MAST), and astronomical research support.
Home to state-of-the-art Mission Operations Centers, the Mikulski Archive for Space Telescopes (MAST), collaborative research spaces, and facilities designed to support global astronomical campaigns.
A highly collaborative and intellectually stimulating environment, bringing together scientists, engineers, data specialists, and educators dedicated to advancing astrophysical research and discovery. Emphasizes innovation, precision, and a passion for space exploration.
The nerve center for some of humanity's most significant astronomical endeavors, enabling groundbreaking discoveries about the cosmos, from our solar system to the most distant galaxies.
While its physical operations are centered in Baltimore, STScI has a profound global impact. It supports an international community of astronomers by managing telescope time allocation, providing data access through MAST, and fostering worldwide scientific collaborations. STScI works closely with international partners like the European Space Agency (ESA) and the Canadian Space Agency (CSA) on missions such as Hubble and JWST, ensuring these observatories serve as resources for humanity worldwide.
3700 San Martin Drive
Baltimore
Maryland
USA
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As of April 2025, Space Telescope Science Institute' leadership includes:
Space Telescope Science Institute has been backed by several prominent investors over the years, including:
In early 2024, Dr. Nancy A. Levenson was appointed Interim Director of STScI, following the departure of Dr. Kenneth Sembach. Other leadership adjustments may occur through internal role changes or appointments within mission offices.
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The Space Telescope Science Institute primarily utilizes the stsci.edu domain. Common email formats include lastname@stsci.edu or firstinitiallastname@stsci.edu.
[last]@stsci.edu or [first_initial][last]@stsci.edu
Format
levenson@stsci.edu
Example
90%
Success rate
WebbTelescope.org (STScI Office of Public Outreach) • May 30, 2024
NASA’s James Webb Space Telescope, with science and mission operations conducted by STScI, has found what astronomers are confirming to be the most distant galaxy ever seen. Known as JADES-GS-z14-0, this galaxy is observed as it was just 290 million years after the big bang, pushing the boundaries of early universe exploration....more
STScI News • April 24, 2024
Dr. Nancy Levenson, Interim Director of the Space Telescope Science Institute (STScI), has been appointed a Fellow of the American Astronomical Society (AAS). This honor recognizes her significant contributions to the field of astronomy and her leadership at STScI....more
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