Skip Navigation

Resources

Cassiopeia A Supernova Remnant

Colorful image of supernova remnant
Source: NASA/CXC/SAO
Published: December 27, 2017

Cassiopeia A (Cas A) is the remnant of a massive star that exploded about 300 years ago. The X-ray image shows an expanding shell of hot gas produced by the explosion.

ENLARGE

Related

Saturn's north polar hexagon basks in the Sun's light now that spring has come to the northern hemisphere. Many smaller storms dot the north polar region and Saturn's signature rings, which appear...
More
A vortex on Saturn
Hexagon and Rings
Multiple jets of icy particles are blasted into space by the active venting on Saturn¿s moon Enceladus. This image was acquired in a viewing geometry that makes the tiny particles in the Enceladus...
More
Multiple jets of icy particles blasted into space by Saturns moon Enceladus
Ice Fountains
This near-infrared, color mosaic from NASA's Cassini spacecraft shows the sun glinting off of Titan's north polar seas. 
More
Titan
Specular Spectacular
Winter is approaching in the southern hemisphere of Saturn and with this cold season has come the familiar blue hue that was present in the northern winter hemisphere at the start of NASA's Cassini...
More
Saturn
'Tis the Season
This view of Uranus was recorded by Voyager 2 on Jan 25, 1986, as the spacecraft left the planet behind and set forth on the cruise to Neptune.
More
This view of Uranus was recorded by Voyager 2 on Jan 25, 1986, as the spacecraft left the planet behind and set forth on the cruise to Neptune.
Uranus - Final Image
+ Version with labels Cassini shot past the surface of Saturn's moon Enceladus on Aug. 11, 2008, acquiring a set of seven high-resolution images targeting known jet source locations on the moo...
More
Enceladus
Damascus Sulcus on Enceladus (labeled)
This image mosaic, covering an area of 120 by 160 kilometres, was obtained thanks to the images taken by Descent Imager and Spectral Radiometer (DISR) on board Huygens, and provides the complete co...
More
Titan closeup
Revealing Titan's Rugged Surface
This artist's concept envisions what hydrocarbon ice forming on a liquid hydrocarbon sea of Saturn's moon Titan might look like. A new model from scientists on NASA's Cassini mission suggests that ...
More
Artist's concept of Saturn's moon Titan
Floating Ice on Titan Lakes?
Saturn's shadow spreads across the rings here, extending beyond the F ring and its tenuous, flanking ringlets. This view catches Saturn's moon Mimas on its day-long sojourn around the planet. Mima...
More
Saturn's shadow hides rings as Mimas orbits Saturn
Rubbing-out the Rings
NASA's Cassini spacecraft looks toward the night side of Saturn's moon Titan in a view that highlights the extended, hazy nature of the moon's atmosphere.
More
NASA's Cassini spacecraft looks toward the night side of Saturn's moon Titan in a view that highlights the extended, hazy nature of the moon's atmosphere.
Highlighting Titan's Hazes
The Cassini spacecraft looks down on Titan's north pole and unveils the moon's upper-most atmospheric hazes, creating the appearance of a halo around Saturn's largest moon. For a color view of the...
More
The Cassini spacecraft looks down on Titan's north pole and unveils the moon's upper-most atmospheric hazes
Atmospheric Halo
Cassini's flyby of Jupiter is quite distant, with a closest approach of about 136 Jupiter radii (or almost 10 million kilometers). This image shows the spacecraft with Jupiter in the far distance....
More
Jupiter Flyby
Jupiter Flyby
N00063394.jpg was taken on July 02, 2006 and received on Earth July 03, 2006. The camera was pointing toward TITAN at approximately 183,007 kilometers away, and the image was taken using the CL1 an...
More
Titan
T-15 Raw Image
About 200 people gathered on the mall at NASA's Jet Propulsion Laboratory, Pasadena, Calif., to wave at Saturn on July 19, 2013. At the time NASA's Cassini spacecraft had turned to take a picture o...
More
A Crowd at JPL Wave at Saturn
A Crowd at JPL Wave at Saturn
Atlas joins other moons casting shadows on Saturn's rings as the planet approaches its August 2009 equinox. Atlas (30 kilometers, or 19 miles across) orbits in the Roche Division between the A rin...
More
Atlas' shadow on Saturn's rings
Atlas' Ring Shadow Premiere
Behold Saturn's Magnetosphere! July 1, 2004 Full-Res: PIA06345 Saturn's magnetosphere is seen for the first time in this image ta...
More
Behold Saturn's Magnetosphere!
Behold Saturn's Magnetosphere!
The effects of the small moon Prometheus loom large on two of Saturn's rings in this image taken a short time before Saturn's August 2009 equinox. A long, thin shadow cast by the moon stretches ac...
More
The effects of the small moon Prometheus loom large on two of Saturn's rings
Affecting Two Rings
+ Xanadu's Channels and Dunes + Related image In a sweeping mosaic of the low latitudes of Saturn's moon Titan, the bright landmass of the enigmatic region known as Xanadu stands ou...
More
Titan
Xanadu's channels and dunes (Annotated)
Saturn’s rings display their subtle colors in this view captured on Aug. 22, 2009, by NASA’s Cassini spacecraft. The particles that make up the rings range in size from smaller than a grain of sand...
More
A natural color view of Saturn's Rings
Gravity’s Rainbow
On Oct. 9, 2008, just after coming within 25 kilometers (15.6 miles) of the surface of Enceladus, NASA's Cassini captured this stunning mosaic as the spacecraft sped away from this geologically act...
More
On Oct. 9, 2008, just after coming within 25 kilometers (15.6 miles) of the surface of Enceladus, NASA's Cassini captured this stunning mosaic as the spacecraft sped away from this geologically active moon of Saturn.
A Tectonic Feast
Jagged looking shadows stretch away from vertical structures of ring material created by the moon Daphnis in this image taken as Saturn approaches its August 2009 equinox. Daphnis (8 kilometers, o...
More
Saturn's rings
Sawtooth Shadows
Titan 'TB' Flyby Animation December 13, 2004 Full-Res: PIA06147 QuickTime This computer animation shows the observations to be take...
More
Titan 'TB' Flyby Animation
Titan 'TB' Flyby Animation
The brilliant supergiant star, Rigel, emerges from behind the haze of Saturn's upper atmosphere in this Cassini view. Rigel is one of the 10 brightest stars in Earth's sky and forms the left foot ...
More
The brilliant supergiant star, Rigel, emerges from behind the haze of Saturn's upper atmosphere
Help from Orion
The Cassini spacecraft peers at the pitted surface of the small and irregularly-shaped moon Hyperion. See Chiseled Away to learn how these pits are created on low-density Hyperion (270 kilometers,...
More
The irregularly-shaped moon Hyperion
Pitted Hyperion
The Cassini spacecraft looks close at Saturn to frame a view encompassing the entire C ring. In the dark region closer to the planet lies the much dimmer D ring. The bright B ring wraps around the...
More
a beautiful image of Saturn and its rings
Framing the C Ring

You Might Also Like