Spitzer learns why one class of galaxy seems to have trouble forming new stars.

Gay Hill talks to Dr. Lori Allen about the aesthetics and science behind the "Mountains of Creation," a beautiful new Spitzer image of a region of triggered star formation.

Once thought to be the stuff of science fiction, double sunsets may be much more common in the universe than previously believed. Dr. David Trilling discusses the Spitzer Space Telescope's recent results.

Using the Spitzer Space Telescope, astronomers have for the first time discovered what the atmosphere is like on planets outside our solar system! Drs. Sara Seager and David Charbonneau discuss this groundbreaking technique with Robert Hurt.

Observations of our sister galaxy Andromeda reveal a new side to this Milky Way neighbor. Dr. Karl Gordon and Dr. George Rieke discuss Spitzer's fantastically detailed map of its dusty skeleton, previously hidden behind its veil of stars.

New observations from NASA's Spitzer Space Telescope suggest that moons like Earth's -- that formed out of tremendous collisions -- are uncommon in the universe, arising at most in only 5 to 10 percent of planetary systems.

Dr. Mark Lacy discusses a population of giant black holes, or quasars, in distant galaxies that, until recent Spitzer observations, were hidden from astronomers behind massive clouds of dust.

Are solar systems like our own common in the universe, or is ours an oddball? Dr. Lynne Hillenbrand discusses her work on a project designed to answer this question, and what they have discovered so far.

NASA's Spitzer Space Telescope continues to surprise astronomers. On its fifth anniversary, we recap some of this Great Observatory's biggest discoveries.

A big galaxy, spotted stealing gas from a passing galaxy about half its size, was caught red-handed by the Spitzer Space Telescope.

Astronomers have long scrutinized the vast and layered clouds of the Orion nebula, an industrious star-making factory visible to the naked eye in the sword of the famous hunter constellation. Yet, Orion is still full of secrets.

New results from the Spitzer Space Telescope hint that other solar systems may be even more exotic than we've ever imagined.

A contender for the title of brightest star in our Milky Way galaxy has been unearthed in the dusty metropolis of the galaxy's center.

An infant Earth may be forming in a star system over 400 light-years away, according to new results from the Spitzer Space Telescope.

A first from the Spitzer Space Telescope. A new finding is a stepping stone to eventually studying signs of life on worlds where life could exist. (JPL Podcast)

As a result of a new Spitzer Space Telescope study, two of our own Milky Way Galaxy's spiral arms have gone away.

Talk about hot flashes! A planet that heats up to extreme temperatures in a matter of hours before quickly cooling back down.

Astronomers have studied two very intriguing planets beyond our solar system -- one super hot, one super windy. This podcast comes from NASA's Jet Propulsion Laboratory.

Robert Hurt talks to Yanling Wu about her studies of blue compact dwarf galaxies, and what they tell us about the origins of organic molecules in infant galaxies.

NASA's Spitzer Space Telescope has uncovered new evidence that planets might rise up out of a dead star's ashes. (JPL Podcast)

Terrestrial planets might form around many, if not most, of the nearby sun-like stars in our galaxy. These new results suggest that worlds with potential for life might be more common than we thought.

Water is being blasted to pieces by a young star's laser-like jets, according to new observations from NASA's Spitzer Space Telescope. The discovery provides a better understanding of how water -- an essential ingredient for life as we know it -- is processed in emerging solar systems.

Spitzer has found a supernova remnant that no other telescope has seen. Dr. Patrick Morris discusses his team's discovery of this shy object which can't be detected in visible or even most bands of infrared light.

From recent discoveries made by two of NASA's Great Observatories comes new insight into how stars are created. Large nebula's scattered all around our galaxy, act as incubators for newborn stars to ignite and grow.

New Spitzer evidence indicates that some gas giants may have grown in less than one million years, faster than previously believed.