Saturn's Rings (seen in ultraviolet light to reveal the properties and sizes of aerosols in its gaseous makeup)
Omega Centauri (a colorful mix of 100,000 stars in the core of a giant cluster of nearly 10 million stars)
Eta Carinae (massive unstable star with two polar lobes and a thin equatorial disk)
Hourglass Nebula (shape produced by fast stellar wind in a slow-expanding cloud, denser near its equator*)
DEM L 190 (the filaments are sheets of debris from a stellar explosion in a neighboring galaxy)
M87 Jet (a black-hole-powered jet of electrons and other subatomic particles at nearly the speed of light)
Triple Eclipse on Jupiter (rare alignment of three of Jupiter's largest moons across the planet's face)
Most Distant Galaxy Candidate (likely the most distant object seen, its light traveled 13.2 billion years to reach Hubble)
Whirlpool Galaxy and Companion (prominent arms due to close encounter with the small galaxy on the right*)
1994D in NGC 4526 (this supernova helped narrow the Hubble Constant down to its most precise measurement)
Pluto System (Pluto, Charon, and the four moons around them, discovered by Hubble in the last decade)
Aristarchus Impact Crater (the ultraviolet- to visible-color-ratio information shows the diversity of materials in it)
Galactic Core (infrared image of the center of our Milky Way Galaxy)
NGC 3603 (A young collection of stars surrounded by clouds of interstellar gas and dust, raw material for new star formation)
AM 0644-741 (ring galaxy, was once a spiral galaxy, changed by a collision with another)
Cone Nebula (pillar of gas and dust; ultraviolet radiation causes the red halo of light around the pillar)