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Introduction
Our Mission
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We Are Multi-Mission
We help humanity explore the universe with advanced space telescopes and ever-growing data archives.
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We Further Scientific Research
We envision, define, and operate missions that offer cutting-edge research opportunities for the astronomical community.
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We Inspire Through Outreach
We share scientific knowledge of the universe in ways that inspire, excite, challenge, and educate.
Recent News
Institute Announcements
Current
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STScI Newsletter: Three AAS-Related Articles
Learn about STScI’s involvement at the 245th AAS Meeting, January 12-16, at National Harbor, MD. -
HST Cycle 33 Call for Proposals Released
We are pleased to announce the release of the Cycle 33 Call for Proposals for the Hubble Space Telescope. The proposal deadline is April 10, 2025. -
What Are Hubble and Webb Looking at Now?
Check out the revamped Space Telescope Live to find out what Hubble and Webb are currently observing.
Press Releases
Events
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Transients From Space
Transient science is entering an exciting new era of discovery. The 2020 Decadal Survey named Time Domain Astronomy (TDA) as a top priority, and NASA’s Physics of the Cosmos...
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Webb Office Hours
The JWST User Community is invited to call into Webb Office Hours to ask questions and directly interact with a team of STScI JWST experts via WebEx. We welcome questions about the...
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Characterizing the Most Common Type of Planet in the Milky Way (that is not found around the Sun)
The last decade of exoplanet exploration revealed a population of 1-3 Earth radius planets, which we now know are the most common outcome of planet formation (within 100 day orbital...
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Galaxy Clusters As Dark Matter Laboratories
The structure of dark halos carries signatures of their mass, dynamical state, and the nature of dark matter itself. Some of the most constraining signals can be found in the outskirts...
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Webb Office Hours
The JWST User Community is invited to call into Webb Office Hours to ask questions and directly interact with a team of STScI JWST experts via WebEx. We welcome questions about the...
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How to Reionize the Universe: Lessons from Low Redshift
The reionization of the intergalactic medium (IGM) at z > 6 is one of the major transformations in the universe’s history, but we do not yet know which galaxies were responsible...