Hubble Space Telescope
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Night Sky Observing Challenge
new e-book
online activities

Celebrating 35 years of Discovery
NASA's Hubble Space Telescope began its groundbreaking mission in 1990, forever changing the way we understand our universe. Thirty-five years later, Hubble’s science continues to inspire. Join the celebration!
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Science
Hubble Focus: Black Holes – Into the Vortex
Black Holes: Into the Vortex explores Hubble’s recent discoveries about black holes, incredibly dense objects whose gravity is so intense that not even light can escape its pull.
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Hubble's Latest Features
What Did Hubble See on Your Birthday?
Hubble explores the universe 24 hours a day, 7 days a week. That means it has observed some fascinating cosmic wonder every day of the year, including on your birthday.
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More Hubble Online Activities
Celebrating 35 Years of Discovery
Hubble's Night Sky Observing Challenge
Celebrate 35 years of Hubble observations with our yearlong stargazing adventure!
Each month in 2025, the Hubble team will release a new set of objects for you to explore. Compare your view to Hubble’s, then submit your observations to the Astronomical League to earn recognition for your achievement.
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Eye on Infinity: NASA Celebrates Hubble’s 35th Year in Orbit
In celebration of the Hubble Space Telescope’s 35 years in Earth orbit, NASA is releasing an assortment of compelling images…
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27 Key Images in Hubble History
As the Hubble Space Telescope marks 35 years in space, NASA's History Office looks back at its journey.
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Hubble’s Universe
Hubble Images