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Hubble's Discoveries

The Hubble Space Telescope has a major impact in every realm of astronomy, from the solar system to the edge of the universe. Explore the questions Hubble continues to answer through its ground-breaking observations and discoveries.
Solar System
Solar System

The Hubble Space Telescope provides a detailed look at the planets, moons, rings, asteroids and comets in our celestial backyard. These investigations have helped answer age-old questions about how the solar system began, how planets formed and how Earth evolved. Hubble also explores the uncharted reaches of our solar system, revealing new moons and objects beyond Pluto.


Extrasolar Planets
Extrasolar Planets

In the last two decades, NASA has been at the forefront of discovering planets beyond our solar system. Hubble explores the nature of these worlds, from orbits to atmospheres, and helps answer fundamental questions about how extrasolar planetary systems compare to ours.


Stars and Nebulae
Stars and Nebulae

Many of Hubble's most iconic images reveal majestic nebulae in the nearby universe. These observations advance our understanding of how gas and dust come together to form nebulae, and how these nebulae become the sites for newborn star and planetary systems. Hubble's investigations provide important views of how stars form, live out their lives and die — eventually expelling enriched gas and dust back into the cosmos.


Galaxies
Galaxies

The keen eye of Hubble has revealed intricate details of the shapes, structures and histories of galaxies — whether alone, as part of small groups or within vast clusters. From supermassive black holes at galactic centers to giant bursts of star formation to titanic collisions between galaxies, these discoveries allow astronomers to probe the current properties of galaxies as well as examine how they formed and developed.


Universe
Universe

Through an ongoing series of ground-breaking observations, Hubble has pushed toward the farthest reaches of the universe. Observing the cosmic frontier, Hubble reveals some of the universe's earliest galaxies, explores the nature of the enigmatic dark matter and builds upon its discovery of the yet-unexplained phenomenon called dark energy.