Nebulas are giant areas of dust and cloud that can be put into one of five groups: star forming, reflection, planetary, supernova remnant and dark.
What happens to turn a protostar into a star?Question:What happens to turn a protostar into a star?Birth of a Star:Everyone may have heard that a star is born when another one dies. It is true; as one star dies with a huge supernova explosion, it releases hot gases in all directions...
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(That's how our own Solar System formed: out of the ashes of a predecessor star, our presolar nebula was shocked into collapsing by another neighboring star that exploded in a supernova.) Star clusters enveloped in a shroud of cold dust and gas can light it from within, like car ...
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With rescaling, we can ensure that the thin tubes inside a single fat tube will organize into grains of a rescaled dimension . The grains associated to a single fat tube will be essentially disjoint; but there can be overlap between grains from different fat tubes. The exact dimensions of ...
simultaneously, but that isn't always the case. Scientists have also managed to observe lensing examples where, because the light traveling around the lens takes different paths of different lengths, different images arrive at different times,as in the caseof one particularly interestingsupernova. ...
In the case of a planetary nebula, the formation of this deep sky object occurs when a white dwarf star explodes during asupernova. The explosion sends interstellar materials into space that can eventually form into a nebula. Stellar objects that can be called Nebula come in four major classes...
Astronomers can measure the distance by using a method called parallax, in which the change in a star's position in the sky is measured at different times during the year. Some stars are alone in the sky, others have companions (binary stars) and some are part of large clusters containing...
About 75% of massive stars spend their lives in abinary partnershipwith another star. Often, when one star (usually the most massive, whichburns its fuel faster) transforms into a neutron star, the supernova that results "kicks" away or destroys its stellar companion. ...