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Hubble Finds Evidence of Stellar Close Encounters: Bright Blue Stars and Naked Cores
NASA’s Hubble ‘Space Telescope (HST) has discovered a new population of stars isolated deep in the core of M15, one of the densest globular star clusters. The stars are among the hottest stars observed in the core of a globular…
Hubble Reveals Young Starburst Activity in Colliding Galaxies
A NASA Hubble Telescope (HST) image of NGC 1741, a pair of colliding galaxies undergoing a burst star formation as a result of a collision.
Voyagers Discover Evidence of the Heliopause
Nearly 15 years after they left home, the Voyager 1 and 2 spacecraft have discovered the first direct evidence of the long-sought-after heliopause — the boundary that separates Earth’s solar system from interstellar space. “This discovery is an exciting indication…
What Happens When Galaxies Collide? Hubble Space Telescope Finds New Surprises
NASA’s Hubble Space Telescope (HST) has discovered a new population of exceptionally bright and young star clusters at the heart of a head-on collision between two galaxies. The orbiting telescope also discovered a rotating, pinwheel-shaped disk at the center of…
HST Reveals Growth Processes of Young Star
NASA’s Hubble Space Telescope (HST) has provided astronomers with their clearest look yet at a vast cloud of gas being heated by the birth of a new star. Called Herbig-Haro object #2 (HH-2), the cloud is heated by shock waves…
Hubble Space Telescope Discovers a Double Nucleus in the Core of an Active Galaxy
Astronomers announced today the discovery of a double nucleus in the active galaxy Markarian 315. The discovery was made from images taken by NASA’s Hubble Space Telescope. The report is by Drs. John MacKenty and Andrew Wilson (both of the…
High Velocity Clouds Found to Dwell in Milky Way’s Halo
Astronomer Laura Danly of the Space Telescope Science Institute (STScI) has taken a major step in solving a 3 year old mystery by measuring, for the first time, the distance to a high-velocity cloud of cool hydrogen gas. The results…
Hubble Reveals New Details in a Supernova’s Blast Wave
This is an image of a small portion of the Cygnus Loop supernova remnant, taken with the Wide Field and Planetary Camera on NASA’s Hubble Space Telescope on April 24, 1991. The Cygnus Loop marks the edge of a bubble-like,…
Hubble Finds a Young Planetary Nebula
This is a NASA Hubble Space Telescope picture of a recently-formed “planetary nebula,” known as Hen 1357. This expanding cloud of gas was ejected from the aging star in the center. Much of the gas is concentrated in a ring…
Dark Matter Found in a “Typical” Cluster of Galaxies
Astronomer John S. Mulchaey, of the Space Telescope Science Institute (STScI) and fellow team members announced today the discovery of a huge concentration of mysterious “dark matter” with the ROSAT X-ray observatory satellite. ROSAT is an acronym for Roentgen Satellite,…
NASA’s Hubble Space Telescope Discovers Protoplanetary Disks Around Newly Formed Stars
NASA’s Hubble Space Telescope has uncovered the strongest evidence yet that many stars form planetary systems. Dr. C. Robert O’Dell of Rice University, Houston, Texas and colleagues have used Hubble to discover extended disks of dust around 15 newly formed…
NASA’s Hubble Space Telescope Peers Far Back in Time to Uncover the Secrets of Galaxy Evolution
Looking far away and far back in time, NASA’s Hubble Space Telescope (HST) has found some suspected ancestors of today’s galaxies. The Hubble pictures reveal that star-forming galaxies were far more prevalent in the clusters of the younger universe than…
NASA’s Hubble Space Telescope Discovers a Disk Fueling a Possible Black Hole
Astronomers using NASA’s Hubble Space Telescope (HST) have gotten their best look yet at the disk of material that surrounds and is being pulled into a suspected black hole. The disk is at the core of a galaxy in the…
NASA’s Hubble Telescope Observes Most Distant Galaxy
Using NASA’s Hubble Space Telescope an international team of astronomers is uncovering intriguing new details about the most distant galaxy known, located more than ten billion light-years away. Hubble reveals a surprising chain of luminous knots at the galaxy’s core.…
NASA’s Hubble Space Telescope Uses a Distant Gravitational Lens to Explore the Cosmos
NASA’s Hubble Space Telescope (HST) has photographed a striking mirror-image of a very distant galaxy. The observations might unlock the secrets of the dark matter mystery which has puzzled astronomers for decades. The image is seen through a huge cluster…
NASA’s Hubble Space Telescope Explores the Volcanic Moon Io
NASA’s Hubble Space Telescope (HST) is allowing several teams of astronomers to explore Io [EYE-oh] at a level of detail not possible since a pair of Voyager spacecraft flew by the small moon 13 years ago. This is the first…
HST Images Compact Young Radio Galaxy
Observations with NASA’s Hubble Space Telescope (HST) have given a tantalizing glimpse of the time soon after galaxies formed, suggesting that these huge systems of stars formed over a wider span of time than once believed. These data, part of…
Hubble Space Telescope Begins To Provide Accurate Distances to Galaxies
Using NASA’s Hubble Space Telescope (HST), an international team of astronomers has taken a major first step in redetermining the expansion rate of the universe. This rate, known as the Hubble Constant, is one of two critical numbers needed for…
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