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Mysterious Fireball From A Cataclysmic Explosion
The visible fireball from a titanic explosion in deep space, called a gamma-ray burst, blazes in the center of this image, taken with the Hubble telescope’s imaging spectrograph. The burst occurred on May 8, 1997, and Hubble observations to acquire…
Gamma-Ray Bursts Common To Normal Galaxies? Hubble Data Offer New Clues and Puzzles
Nature’s most powerful explosions, gamma-ray bursts, occur among the normal stellar population inside galaxies scattered across the universe. This means that, on average, a gamma-ray burst goes off once every few million years inside our Milky Way galaxy. The energy…
Hubble Reveals Invisible High-Speed Collision around Supernova 1987A
BACKGROUND INFORMATION: STIS REVEALS INVISIBLE HIGH-SPEED COLLISION AROUND SUPERNOVA 1987A Astronomers have detected the collision of the highest velocity material expelled by the explosion of supernova 1987A with slowly moving gas ejected when the doomed star was a red giant.…
Fireworks Near a Black Hole in the Core of Seyfert Galaxy NGC 4151
BACKGROUND INFORMATION: LOOKING ALONG A FUNNEL OF LIGHT FROM A HIDDEN BLACK HOLE In a single Hubble Space Telescope Imaging Spectrograph (STIS) CCD observation, astronomers have measured the velocities of hundreds of gas blobs caught up in a twin-cone beam…
A Collision In The Heart Of A Galaxy
BACKGROUND INFORMATION: GETTING TO THE HEART OF A GALAXY SMASHUP Probing the nucleus of the peculiar galaxy called Arp 220 the Hubble Space Telescope’s Near Infrared Camera and Multi-Object Spectrometer (NICMOS) has discovered a 300-light-year diameter dust disk and other…
Hubble Snaps “Family Portrait”
BACKGROUND INFORMATION: HUBBLE TAKES A UNIQUE STELLAR “FAMILY PORTRAIT” Hubble Space Telescope’s Near Infrared Camera and Multi-Object Spectrometer (NICMOS) has provided a stellar “family portrait” of a young family of stars in the Cone Nebula, located in constellation Monoceros. The…
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