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We Are Multi-Mission

We help humanity explore the universe with advanced space telescopes and ever-growing data archives.
We Further Scientific Research

We envision, define, and operate missions that offer cutting-edge research opportunities for the astronomical community.
We Inspire Through Outreach

We share scientific knowledge of the universe in ways that inspire, excite, challenge, and educate.

Institute Announcements

In-Depth: Directorâ€™s Discretionary Time (DDT) Programs

Learn how STScI directors work with the community to push scientific boundaries and enable consequential investigations with both Hubble and Webb.
Updated Analysis Tool for Hubble WFSS Observations

Slitlessutils 2.0 uses a full-forward-modeling approach to simulate WFSS images, and extract spectra from ACS and WFC3 observations.

Hubble Details Early Galaxy Transforming Neighborhood

June 23, 2026

$Thousands of galaxies appear across the black background of space. The galaxies range in size, from big blobs and larger face-on spirals to short lines and tiny dots. The galaxies appear in a variety of colors, including orange, white, pink, and blue. One prominent foreground star appears toward the lower right with several diffraction spikes. A white square highlights one tiny pinpoint of blue light in the top third.$
NASA’s Webb Pinpoints Millions of Stars Within Cigar Galaxy

June 23, 2026

$Composite image of edge-on spiral starburst galaxy Messier 82 as observed by NASA's James Webb and Hubble space telescopes. Hourglass-shaped plumes of gas are shooting outward from above and below a bright blue-white, disk-shaped center. The plumes are yellow near the galaxyâ€™s bright center, denoting areas of ionized hydrogen gas as observed by Hubble, and gradually become redder as you move farther away. Messier 82 is set against the black background of space, which has many distant galaxies that appear as small white and orange spirals, ovals, and points of light. Toward the right of Messier 82 is a blue-white star with eight-pointed diffraction spikes that are characteristic of Webb.$
NASA’s Webb Finds Clues to Ancient, Distant Origin of Comet 3I/ATLAS

June 22, 2026

2026 HotSci at JHU/STScI

1 Jul 2026

HotSci at JHU/STScI featuring Natalia Oliveros Gomez (JHU) on Linking Variability and Atmospheric Structure in the Benchmark Brown Dwarf Binary WISE 1049AB, Steven Goldman (STScI)...
HST Office Hours

2 Jul 2026

The astronomical community is invited to join HST Office Hours to ask questions and directly interact with a Hubble Space Telescope expert via Webex. We welcome questions about the...
JWebbinar 50 - Hands-on Demo, Viewing, and Analyzing JWST Data with Jdaviz 5.0

7 Jul 2026

In this JWebbinar, we will introduce major updates to Jdaviz — the data visualization tool — where images, spectra, cubes, and catalogs can now be visualized and...