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This graph illustrates the Cepheid period-luminosity relationship, used to calculate the size, age and expansion rate of the universe. The data shown are from NASA's Spitzer Space Telescope which has made the most precise measurements yet.
This graph illustrates the Cepheid period-luminosity relationship, used to calculate the size, age and expansion rate of the universe. The data shown are from NASA's Spitzer Space Telescope which has made the most precise measurements yet.

Cepheids as Cosmology Tools

This image from NASA's Wide-field Infrared Survey Explorer, shows four galaxies in the Virgo cluster: Messier 59, Messier 60, NGC 4647, and NGC 4638. It also shows the tracks of three asteroids, which appear in this image as trails of green dots.
This image from NASA's Wide-field Infrared Survey Explorer, shows four galaxies in the Virgo cluster: Messier 59, Messier 60, NGC 4647, and NGC 4638. It also shows the tracks of three asteroids, which appear in this image as trails of green dots.

Asteroids in Virgo

NASA's Spitzer Space Telescope has detected the solid form of buckyballs in space for the first time. To form a solid particle, the buckyballs must stack together, as illustrated in this artist's concept showing the very beginnings of the process.
NASA's Spitzer Space Telescope has detected the solid form of buckyballs in space for the first time. To form a solid particle, the buckyballs must stack together, as illustrated in this artist's concept showing the very beginnings of the process.

Building a Buckyball Particle in Space (Artist Concept)

The four stars and one planet of the 30 Ari system are illustrated in this diagram. This quadruple star system consists of two pairs of stars: 30 Ari B and 30 Ari A.
The four stars and one planet of the 30 Ari system are illustrated in this diagram. This quadruple star system consists of two pairs of stars: 30 Ari B and 30 Ari A.

Double Date: Two Pairs of Stars in One System

Using publicly available data, astronomers have confirmed K2's first exoplanet discovery proving Kepler can still find planets.
Using publicly available data, astronomers have confirmed K2's first exoplanet discovery proving Kepler can still find planets.

Reborn Kepler Discovers First K2 Exoplanet (Artist Concept)


NASA's Spitzer Space Telescope has at last found buckyballs (resembling soccer balls) in space shown in this artist's concept using Hubble's picture of the NGC 2440 nebula. Hubble image credit: NASA, ESA, STScI.

NASA's Spitzer Space Telescope has at last found buckyballs (resembling soccer balls) in space shown in this artist's concept using Hubble's picture of the NGC 2440 nebula. Hubble image credit: NASA, ESA, STScI.

Space Balls (Artist's Concept)

This picture highlights a slice of Saturn's largest ring. The ring (red band) was discovered by NASA's Spitzer Space Telescope, which detected infrared light, or heat, from the dusty ring material.
This picture highlights a slice of Saturn's largest ring. The ring (red band) was discovered by NASA's Spitzer Space Telescope, which detected infrared light, or heat, from the dusty ring material.

Infrared Ring around Saturn

NASA's Spitzer Space Telescope was able to show that a 'standard candle' used to measure cosmological distances is shrinking, a finding that affects precise measurements of the age, size and expansion rate of our universe.
NASA's Spitzer Space Telescope was able to show that a 'standard candle' used to measure cosmological distances is shrinking, a finding that affects precise measurements of the age, size and expansion rate of our universe.

Standard Candle in the Wind

This illustration shows the unusual orbit of planet Kepler-413b around a close pair of orange and red dwarf stars. The planet's 66-day orbit is tilted 2.5 degrees with respect to the plane of the binary stars' orbit.
This illustration shows the unusual orbit of planet Kepler-413b around a close pair of orange and red dwarf stars. The planet's 66-day orbit is tilted 2.5 degrees with respect to the plane of the binary stars' orbit.

Wobbly Planet Orbital Schematic (Illustration)

This photograph from NASA's Spitzer Space Telescope shows the young star cluster NGC 2362. By studying it, astronomers found that gas giant planet formation happens very rapidly and efficiently, within less than 5 million years.
This photograph from NASA's Spitzer Space Telescope shows the young star cluster NGC 2362. By studying it, astronomers found that gas giant planet formation happens very rapidly and efficiently, within less than 5 million years.

Baby Jupiters Must Gain Weight Fast

This artist's map of the Milky Way shows the location of one of the farthest known exoplanets, lying 13,000 light-years away. Most of the thousands of exoplanets discovered to date are closer to our solar system, as indicated by the pink/orange areas.
This artist's map of the Milky Way shows the location of one of the farthest known exoplanets, lying 13,000 light-years away. Most of the thousands of exoplanets discovered to date are closer to our solar system, as indicated by the pink/orange areas.

Map of Exoplanets Found in Our Galaxy (Artist's Concept)

This artist's concept demonstrates how a dusty planet-forming disk can slow down a whirling young star, essentially saving the star from spinning itself to death. Evidence for this phenomenon comes from NASA's Spitzer Space Telescope.
This artist's concept demonstrates how a dusty planet-forming disk can slow down a whirling young star, essentially saving the star from spinning itself to death. Evidence for this phenomenon comes from NASA's Spitzer Space Telescope.

Stars Can't Spin Out of Control (Artist's Animation)

This image taken by NASA'S Galaxy Evolution Explorer shows one of the largest flares, or star eruptions, ever recorded at ultraviolet wavelengths. This star is called GJ 3685A.
This image taken by NASA'S Galaxy Evolution Explorer shows one of the largest flares, or star eruptions, ever recorded at ultraviolet wavelengths. This star is called GJ 3685A.

Dwarf Star Erupts in Giant Flare

This ultraviolet image from NASA's Galaxy Evolution Explorer is of the interacting group of galaxies known as Stephan's Quintet (NGC 7317, NGC 7318A, NGC 7318B, NGC 7319, NGC 7320, lower left).
This ultraviolet image from NASA's Galaxy Evolution Explorer is of the interacting group of galaxies known as Stephan's Quintet (NGC 7317, NGC 7318A, NGC 7318B, NGC 7319, NGC 7320, lower left).

Interacting Group of Galaxies Known as Stephan's Quintet

This image from NASA's Hubble Space Telescope shows Herbig-Haro 30, the prototype of a gas-rich 'young stellar object' disk around a star.
This image from NASA's Hubble Space Telescope shows Herbig-Haro 30, the prototype of a gas-rich 'young stellar object' disk around a star.

Dark Disks Around Young Stars

When astronomers first looked at images of a supernova remnant called Cassiopeia A, captured by NASA's NuSTAR. The mystery of Cassiopeia A (Cas A), a massive star that exploded in a supernova more than 11,000 years ago continues to confound scientists.
When astronomers first looked at images of a supernova remnant called Cassiopeia A, captured by NASA's NuSTAR. The mystery of Cassiopeia A (Cas A), a massive star that exploded in a supernova more than 11,000 years ago continues to confound scientists.

The Case of Missing Iron in Cassiopeia A

The green dot in the middle of this image might look like an emerald amidst glittering diamonds, but is a dim star belonging to a class called brown dwarfs; it is the first ultra-cool brown dwarf discovered by NASA's Wide-field Infrared Survey Explorer.
The green dot in the middle of this image might look like an emerald amidst glittering diamonds, but is a dim star belonging to a class called brown dwarfs; it is the first ultra-cool brown dwarf discovered by NASA's Wide-field Infrared Survey Explorer.

Collecting Brown Dwarfs in the Night Sky

The third closest star system to the sun, called WISE J104915.57-531906, center of large image, which was taken by NASA's WISE. It appeared to be a single object, but a sharper image from Gemini Observatory, revealed that it was binary star system.
The third closest star system to the sun, called WISE J104915.57-531906, center of large image, which was taken by NASA's WISE. It appeared to be a single object, but a sharper image from Gemini Observatory, revealed that it was binary star system.

Brown Dwarfs in our 'Backyard'

The magnetic field of our Milky Way galaxy as seen by ESA's Planck satellite. This image was compiled from the first all-sky observations of polarized light emitted by interstellar dust in the Milky Way.
The magnetic field of our Milky Way galaxy as seen by ESA's Planck satellite. This image was compiled from the first all-sky observations of polarized light emitted by interstellar dust in the Milky Way.

Magnetic Map of Milky Way

Astronomers have uncovered patterns of light that appear to be from the first stars and galaxies that formed in the universe. The light patterns were hidden within a strip of sky observed by NASA's Spitzer Space Telescope.
Astronomers have uncovered patterns of light that appear to be from the first stars and galaxies that formed in the universe. The light patterns were hidden within a strip of sky observed by NASA's Spitzer Space Telescope.

Hidden Patterns of Light Revealed by Spitzer

This map illustrates the numerous star-forming clouds, called cold cores, that European Space Agency's Planck observed throughout our Milky Way galaxy. Planck detected around 10,000 of these cores, thousands of which had never been seen before.
This map illustrates the numerous star-forming clouds, called cold cores, that European Space Agency's Planck observed throughout our Milky Way galaxy. Planck detected around 10,000 of these cores, thousands of which had never been seen before.

Clumps of Cold Stuff Across the Sky

This image from NASA's Galaxy Evolution Explorer shows the galaxy NGC 1291, located about 33 million light-years away in the constellation Eridanus. NGC 1291 is notable for its unusual inner bar and outer ring structure.
This image from NASA's Galaxy Evolution Explorer shows the galaxy NGC 1291, located about 33 million light-years away in the constellation Eridanus. NGC 1291 is notable for its unusual inner bar and outer ring structure.

NGC 1291

Located 10 million light-years away in the southern constellation Sculptor, the Silver Dollar galaxy, or NGC 253, is one of the brightest spiral galaxies in the night sky as seen in this edge-on view from NASA's Galaxy Evolution Explorer.
Located 10 million light-years away in the southern constellation Sculptor, the Silver Dollar galaxy, or NGC 253, is one of the brightest spiral galaxies in the night sky as seen in this edge-on view from NASA's Galaxy Evolution Explorer.

Triple Scoop from Galaxy Hunter

Located 1,000 light years from Earth in the constellation Perseus, a reflection nebula called NGC 1333 epitomizes the beautiful chaos of a dense group of stars being born. This image is from NASA's Spitzer Space Telescope.
Located 1,000 light years from Earth in the constellation Perseus, a reflection nebula called NGC 1333 epitomizes the beautiful chaos of a dense group of stars being born. This image is from NASA's Spitzer Space Telescope.

Chaotic Star Birth

This composite image of asteroid 2007 PA8 was obtained using data taken by NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif.
This composite image of asteroid 2007 PA8 was obtained using data taken by NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif.

NASA Radar Images Asteroid 2007 PA8

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