Cassiopeia A in 60 Seconds
Cassiopeia A is the 300-year-old remnant created by the supernova explosion of a massive star. Each Great Observatory image highlights different characteristics of the remnant.
M51 in 60 Seconds
Hubble's image of M51, also known as the Whirlpool Galaxy, shows the majestic spiral arms that are actually long lanes of stars and gas laced with dust. The infrared image from Spitzer also reveals stars and the glow from clouds of interstellar dust.
The Crab Nebula in 60 Seconds
In 1054 A.D., a star's death in the constellation Taurus was observed on Earth. Now, almost a thousand years later, a superdense neutron star left behind by the explosion is spewing out a blizzard of extremely high-energy particles into the expanding debris field known as the Crab Nebula.
M82 in 60 Seconds
When seen in visible light from the Hubble Space Telescope, M82 looks like an ordinary spiral galaxy.
Kepler's Supernova Remnant in 60 Seconds
The supernova explosion that created this object was witnessed on Earth about 400 ago years by many skywatchers, including the astronomer Johannes Kepler. This object, which now bears Kepler's name, is the remains of a massive star's demise.
Sombrero Galaxy in 60 Seconds
Like the Milky Way, Sombrero is a spiral galaxy. However, we see Sombrero edge-on from our vantage point from Earth, rather than the face-down perspective that is more familiar.
3C321 in 60 Seconds
In 3C321, a jet from a black hole in one of the galaxies is pummeling its neighbor galaxy, the first time this type of galactic violence has ever been seen. The jet could bring big trouble for any planets in its path, but could also trigger a burst of star formation in its wake.
G1.9+0.3 in 60 Seconds
About a hundred and forty years ago, the light from a supernova explosion in our galaxy reached the Earth, but no one saw it. The discovery of this supernova remnant helps astronomers better understand how often these stellar time-bombs go off in our galaxy.
NGC 4258 in 60 Seconds
A composite image of NGC 4258, about 25 million light-years from Earth, shows an X-shaped pattern when seen in different types of light.
Centaurus A in 60 Seconds
There is nothing subtle about the black hole in the galaxy Centaurus A. First off, it's about 10 million times more massive than the sun, and Chandra's X-ray image shows it's not just sitting quietly as a bright point in the middle.
SN 1006 in 60 Seconds
The brightest supernova ever recorded on Earth, this spectacular light show was documented in China, Japan, Europe, and the Arab world. It was brighter than Venus, and visible during the day for weeks.
M81 in 60 Seconds
This image of the mammoth spiral galaxy M81, located about 12 million light years away, contains data from four different NASA satellites.
Macs J0025.4-1222 in 60 Seconds Plus
Two galaxy clusters, each a quadrillion times the mass of the Sun, collided to form the system formally known as Macs J0025.4-1222.
Cat's Eye Nebula in 60 Seconds Plus
This composite of data from NASA's Chandra X-ray Observatory and the Hubble Space Telescope is another look for NGC 6543, better known as the Cat's Eye nebula.
Perseus A in 60 Seconds
The giant galaxy, Perseus A, which is also known as NGC 1275, is a well-known source of strong radio radiation.
RCW 108 in 60 Seconds
RCW 108 is a region where stars are actively forming about 4,000 light-years from Earth.
SN1996cr in 60 Seconds
In 1995 or 1996 a supernova exploded in a nearby galaxy, but no one on Earth knew it at the time.
Abell 1689 in 60 Seconds
Abell 1689 is a massive cluster of galaxies located about 2.3 billion light-years away.
M87 in 60 Seconds
M87 is a giant elliptical galaxy. At a distance of about 60 million light-years from Earth, M87 is the largest galaxy in the Virgo cluster of some 2,000 galaxies.
M84 in 60 Seconds
M84 is a massive elliptical galaxy located about 55 million light years from Earth in the Virgo Cluster.