Introduction to the Hubble Space Telescope
The Hubble Space Telescope (HST) is a space-based observatory orbiting Earth. Hubble observes the universe in multiple wavelengths of light, from ultraviolet to visible to near-infrared.
The Hubble Space Telescope’s launch in 1990 marked the beginning of a new era in humanity’s exploration of the universe. From above Earth’s obscuring atmosphere, Hubble can obtain extremely high-resolution images and detailed spectroscopic data of the cosmos, from our solar system to the distant, early universe. Scientists submit proposals to use Hubble through an open, peer-reviewed, anonymous competition.
Through the middle of the next decade, HST will remain the only space-based telescope providing spectroscopy and high-resolution imaging at ultraviolet, visible, and near-infrared wavelengths. Since the James Webb Space Telescope launched in 2021, the two observatories have been working in tandem to push astronomy forward and pursue the boldest scientific questions of our time.
Using the Hubble Telescope
Observatory News
Resources
Press Releases
View All HST Press Releases
Upcoming STScI Events
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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...
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HST Help Desk
Please contact the HST Help Desk with any questions.