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Cygnus X Marks the Spot (Gallery Explorer)

Over the last half century this Cygnus X has been yielding its secrets to the scrutiny of infrared observations. NASA’s Spitzer Space Telescope has now provided the best view yet of what we now know is one of the largest single areas of star formation in our Milky Way galaxy.

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Homes Away From Home? Revisiting the Seven Planets of TRAPPIST-1

One year ago, astronomers announced the discovery that seven roughly Earth-sized worlds orbited around the nearby sta...

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Brown Dwarf Weather Annotated

This artist's concept animation shows a brown dwarf with bands of clouds, thought to resemble those seen on Neptune a...

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5000 Days in the Life of an Astronomy Robot

May 3rd, 2017 marks the 5,000th day of NASA's Spitzer Space Telescope mission. This video gives us a detailed look at...

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Spitzer Beyond

NASA's Spitzer Space Telescope, which launched Aug. 25, 2003, will begin an extended mission—the “Beyond” phase—on Oc...

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The Wild Temperature Swings of an Exoplanet

The exoplanet HD80606 b spends most of its time far from its star, but every 111 days it swings in feverishly close. ...

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Catching a GLIMPSE of the Milky Way

Welcome home! This is our Milky Way galaxy as you’ve never seen it before. Ten years in the making, this is the clear...

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10 Years of Innovation

On August 25, 2003, NASA launched the Spitzer Space Telescope to reveal secrets of the infrared universe.

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Possible Nearby Exoplanet Smaller than Earth (Update)

Astronomers using NASA's Spitzer Space Telescope have detected what they believe is an alien world just two-thirds th...

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Cygnus X Marks the Spot (Gallery Explorer)

Over the last half century this Cygnus X has been yielding its secrets to the scrutiny of infrared observations. NASA...

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The Galactic Center Revisited (Gallery Explorer)

Hiding behind the constellations Sagittarius and Scorpius is the center of our own Milky Way galaxy, over 25,000 ligh...

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The North America Nebula (Gallery Explorer)

Seen here in visible light, the North America Nebula strangely resembles its namesake continent. Expanding our view t...

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The Art of Exoplanets

While astronomers have identified over 500 planets around other stars, they’re all too small and distant to fill even...

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The Great Observatories Origins Deep Survey (Special)

Today's telescopes study the sky across the electromagnetic spectrum. Each part of the spectrum tells us different th...

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The Dragon and the Swan (Gallery Explorer)

Hidden behind a dark veil of dust in the constellation Sagittarius, a lurking dragon has been revealed by the infrare...

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When Worlds Collide (Showcase)

When worlds collide, the result is spectacular, and astronomers think they’ve detected the aftermath of such an event...

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The Wise Sky (Gallery Explorer)

In December of 2009, NASA launched its latest infrared telescope, the Wide-field Infrared Survey Explorer. This satel...

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The Many Views of the Milky Way (Gallery Explorer)

In May of 2009, the European Space Agency successfully launched the Herschel Space Observatory, a new eye for the inf...

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The One Ring of Saturn (Showcase)

Astronomers have found One Ring to rule them all, not in the land of Mordor, but around Saturn, the Lord of the Rings...

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Cooking Up Cometary Crystals (Showcase)

The fading light of a flaring young star has shed light on a puzzle involving crystals and comets.

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Orion Nebula (Gallery Explorer)

Explore the dusty secrets of the Orion Nebula through Spitzer's infrared vision.

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A Galaxy of a Different Color (Showcase)

To commemorate this International Year of Astronomy, three of NASA's flagship observatories have put a new spin on ho...

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The Omega Nebula (Gallery Explorer)

The Omega Nebula, or M17, is a star-forming region in the constellation of Sagittarius and is about 6,000 light years...

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The W5 Stellar Blast Furnace (Showcase)

It's a chaotic region, sculpted by the glare of one generation of massive stars that's giving rise to the next.

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The Milky Way Big Picture (Showcase)

Two and a half billion infrared pixels are exposing our own Galaxy in this new image from NASA's Spitzer Space Telesc...

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Snowflake Cluster (Gallery Explorer)

A group of baby stars form a "stellar snowflake" in Spitzer's observations of a dusty region near the Cone Nebula.

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Echoes of a Supernova (Showcase)

A supernova flash echoing through surrounding dust clouds has given astronomers a virtual time machine for studying t...

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Protostellar Jets (Gallery Explorer)

Giant jets from baby stars blow colorful bubbles in interstellar space. Spitzer's infrared view reveals these structu...

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Promo: IRrelevant Astronomy

IRrelevant Astronomy takes a lighthearted, comedic look at the infrared Universe. Enjoy this peek at the Spitzer Spac...

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Rho Ophiuchi Cloud (Gallery Explorer)

One of the most striking nearby star-forming regions is the Rho Ophiuchi Cloud. New images from Spitzer reveal its in...

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The X-Planets (Showcase)

These two extreme planets have set the records for the hottest and windiest known worlds anywhere.

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Galaxies (Gallery Explorer)

Galaxies take on striking new colors and structures when viewed by the infrared eye of the Spitzer Space Telescope.

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Trilogy of Terror (Showcase)

For Halloween, a trilogy of spooky star-forming regions tell a haunting tale of the lives and deaths of stars.

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Mira, A Real Shooting Star (Showcase)

The star Mira has kept a stunning secret that scientists have only just discovered in the glow of ultraviolet light.

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Helix Nebula (Gallery Explorer)

The eerie Helix nebula, created from the outer layers of a dying star once like our own, reveals secrets to the Spitz...

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Eta Carinae (Gallery Explorer)

The beautiful Carina nebula, stretching 200 light years across space, has been shredded by ultraviolet radiation and ...

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Special: M51 & Gizmo

What makes the Earth livable? In this animated cartoon, innocent alien M51 moves the Earth into a closer orbit around...

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Galactic Center (Gallery Explorer)

The fantastic structures at the center of our Milky Way Galaxy, hidden from us in visible light, are revealed through...

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Andromeda, Beauty and the Beast (Showcase)

In Greek Mythology, the Princess Andromeda was sacrificed to appease a sea monster's appetite. But astronomers are le...

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Large Magellanic Cloud (Gallery Explorer)

The Large Magellanic Cloud, a dwarf galaxy that orbits the Milky Way, is revealed in exquisite detail in this video f...

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Pillars of Destruction

They're known as the Pillars of Creation, but according to recent Spitzer observations these ghostly apparitions have...

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