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Latest Nebula Stories

Not All Rogue Planets Are Born Within Solar Systems
2013-08-20 11:30:55

Lee Rannals for redOrbit.com - Your Universe Online A team of astronomers say free-floating planets can be born freely, outside of an existing solar system. Previously, scientists believed free-floating planets, or "rogue planets," must have been ejected from existing planetary systems. However, telescopes at Chalmers University of Technology have helped astronomers discover not all of these rogue planets were created this way, but that some were born free. Scientists believe there...

Life Of Eskimo Nebula Coming To A Beautiful End
2013-07-13 08:19:42

April Flowers for redOrbit.com - Your Universe Online At the end of their lives, stars like our Sun become remarkably photogenic. For example, NGC 2392, located approximately 4,200 light years from Earth, is giving astronomers a beautiful display as it nears the end of its existence. NGC 2392, referred to as a "planetary nebula," has been nicknamed the Eskimo Nebula; however "planetary nebula" is misleading because nebulae have nothing to do with planets. Rather, the term is an...

Cats Paw Nebula Baby Boom
2013-06-06 13:58:02

Lee Rannals for redOrbit.com - Your Universe Online Astronomers presented research on Wednesday at the American Astronomical Society (AAS) about how the Cat's Paw Nebula is experiencing a "baby boom." The team said the nebula, or NGC 6334, is forming stars at a more rapid pace than the Orion Nebula, which is one of the closest stellar nurseries to Earth. "It might resemble a 'mini-starburst,' similar to a scaled-down version of the spectacular bursts sometimes seen in other...

NGC 6334: Shedding Light On Starburst Regions
2013-06-05 13:00:40

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Stars are formed in massive clouds of gas that are being compressed by some nearby event. Over time, the region will be consumed by the forming stars, leaving a cluster that will eventually drift apart. But what starts this process in the first place? Often these regions of star formations -- known as starburst regions -- are found in distant galaxies where the activity level is very high. But this presents a problem:...

Hubble Provides Most Detailed Image Of Ring Nebula To Date
2013-05-23 12:48:25

[WATCH VIDEOS: Flying Around The Ring Nebula | Secrets Of The Ring Nebula] Lee Rannals for redOrbit.com — Your Universe Online The Hubble Space Telescope has provided one of the most detailed images of the Ring Nebula so far, allowing scientists to construct a model of the nebula in 3D. The Ring Nebula, or Messier 57, is an archetypal planetary nebula relatively close to Earth at 2,000 light-years away. NASA said Messier 57 is the glowing remains of a Sun-like star. The...

Evolution Of Cosmic Carbon
2013-05-15 10:50:47

John P. Millis, PhD for redOrbit.com — Your Universe Online In addition to being a key component of life on Earth, carbon is the sixth most abundant element in the Universe. Yet despite its ubiquitous existence in the cosmos, the evolution of carbon in molecules has been difficult to study. Until now. Researchers at NASA´s Ames Research Center have taken archival data to chart how chemicals known as complex polycyclic aromatic hydrocarbons (PAHs) vary in different...

Orion Reveals A Hidden Fiery Ribbon
2013-05-15 05:10:13

[ Video 1 ] | [ Video 2 ] Lee Rannals for redOrbit.com - Your Universe Online The European Southern Observatory (ESO) has released a new image of the constellation of Orion showing part of the Orion Molecular Cloud. The image shows off clouds of gas and interstellar dust at wavelengths too long for the human eye to see. These tiny dust grains block the view of what lies within and behind the clouds, making it difficult to observe star formation taking place in this region. In...

Danish Telescope Captures Breathtaking Image Of Star-Forming Region
2013-05-02 13:53:56

WATCH VIDEOS: [Panning Across NGC 6559] | [Zooming In On NGC 6559] John P. Millis, Ph.D. for redOrbit.com - Your Universe Online The Danish 1.54-metre telescope located at ESO´s La Silla Observatory in Chile has released a new image of the star-forming region NGC 6559. Located relatively nearby, a mere 5000 light-years from Earth, NGC 6559 is found in the constellation of Sagittarius (The Archer). The nebula is only a few light years across, a stark contrast to its more...

Hubble Celebrates 23 Years In Space With Spectacular View Of Horsehead Nebula
2013-04-19 13:59:48

VIDEO: [Zooming Into The Horsehead Nebula] | VIDEO: [The Gaseous Landscape Of The Horsehead Nebula] Lee Rannals for redOrbit.com — Your Universe Online The Hubble Space Telescope is celebrating its 23rd year in orbit, and to commemorate the veteran observatory, NASA and the European Space Agency (ESA) have released an amazing image of the Horsehead Nebula. For 23 years, the Hubble Space Telescope has been making cutting-edge observations of several of the sky's best objects....


Latest Nebula Reference Libraries

6_19859ff34fd03d00777232e2520ce83f5
2004-10-19 04:45:42

Supernova Remnant -- A supernova remnant (SNR) is made up of the materials left behind by the gigantic explosion of a star in a supernova. There are two possible routes to this end: either a massive star may cease to generate fusion energy in its core, and collapse inward under the force of its own gravity, or a white dwarf star may accumulate material from a companion star until it reaches a critical mass and undergoes a similar collapse. In either case, the resulting supernova...

6_d67b2db586c7facec8388b5df78e57912
2004-10-19 04:45:42

Star -- A star is a self-gravitating sphere of plasma in hydrostatic equilibrium that generates energy in its interior through the process of nuclear fusion. Energy from this process radiates into space as electromagnetic radiation and neutrinos. Star formation and evolution As learned by star formation astronomers, stars are born in molecular clouds, regions of higher density of matter, and form by gravitational instability inside those clouds. High mass stars illuminate powerfully...

6_386b5e7a7ed089dc0a3363e0980dbb032
2004-10-19 04:45:42

Reflection Nebula -- In astronomy, reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. The nearby star or stars are not hot enough to cause ionization in the gas of the nebula like in emission nebulae but are bright enough to give sufficient scattering to make the dust visible. The distiction between these two types of nebulae was done by Hubble in 1922. They are usually blue because the scattering is more efficient for blue light...

6_c65813e67f1bee99b0418c20e5cbbe582
2004-10-19 04:45:42

Planetary Nebula -- A planetary nebula is an astronomical object that usually appears nebulous and disk-like in low-resolution observations. Because of this appearance, similar to the appearance of planets in early observations, the "planetary" adjective was attached and has since been retained for historical consistency. According to current observations and models, planetary nebulae in fact have little to do with planets. Instead, as a small star (less than a few times the mass...

6_56b4148a38a885ae7fa748b6f76fe6032
2004-10-19 04:45:42

Nebula -- in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to bodies later discovered to be galaxies, e.g., the so-called Great Nebula in the constellation Andromeda. In 1864, William Huggins confirmed William Herschel's conclusion that nebulae are not swarms of stars by determining that the spectra of nebulae are made of bright lines characteristic of radiating gases. Diffuse...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'